Y504-a dissolved oxygen sensor description The sensor is based on optical fluorescence lifetime quenching technique. Its technical procedure meets astm d888-09 standard for optical sensing of dissolved oxygen. This online sensor is developed to integrate with yosemite wireless monitoring system. Its rugged design and large measurement range make it ideal for sampling, flow cell, ground water and waste water measurements. Y504-a dissolved oxygen sensor applications Fish farmer, waste water plant, river, stream, and ocean monitoring Y504-a dissolved oxygen sensor feature , 0-20mg/l or 0-200% saturation , 0~50'c; ip68 rating , membraneless, no electrodes design , no oxygen consumption , flow independent , automatic temperature compensation , no h2s interference , low drift, fast response, and more accurate , low maintenance, low operating cost , easy sensor cap replacement , rs-485; modbus protocol compatible Y504-a dissolved oxygen sensor technical specifications , range, : 0-20mg/l or 0-200% saturation, , response time: 10 sec , housing ip rating: ip68, , accuracy: 1%, , drift:
Y504-A Dissolved Oxygen Sensor Description The sensor is based on optical fluorescence lifetime quenching technique. Its technical procedure meets ASTM D888-09 standard for optical sensing of dissolved oxygen. This online sensor is developed to integrate with Yosemite wireless monitoring system. Its rugged design and large measurement range make it ideal for sampling, flow cell, ground water and waste water measurements. Y504-A Dissolved Oxygen Sensor Applications Fish farmer, waste water plant, river, stream, and ocean monitoring Y504-A Dissolved Oxygen Sensor Feature * 0-20mg/L or 0-200% Saturation * 0~50 'C; IP68 rating * Membraneless, no electrodes design * No oxygen consumption * Flow Independent * Automatic temperature compensation * No H2S Interference * Low Drift, fast response, and more accurate * Low Maintenance, low operating cost * Easy sensor cap replacement * RS-485; MODBUS protocol compatible Y504-A Dissolved Oxygen Sensor Technical Specifications * Range: 0-20mg/L or 0-200% Saturation * Response Time: 10 sec * Housing IP Rating: IP68 * Accuracy: 1% * Drift: -
1.Name: Sodium nitrate Chemical formula: NaNO3 Formula weght:84.99 2.Property: (1) ordinary sodium nitrate: white little crystals or light yellow (2) dry powder sodium nitrate: non-caking, showing loose status. Density:2.257. It is liable to deliquesce, dissolved in water, soluble in liquid ammonia, slightly soluble in ethanol and glycerin, Melting Point:308. While being heated up to about 380 it will decompose and release oxygen and turn into sodium nitrite,as the heating goes on, it will decompose into oxygen, nitrogen and nitrogen oxide. It has strong oxidability and can cause combustion explosion if being mixed with organic substance, sulfur, sodium nitrate etc. 3. Usage:Â it has been wildly used in the glass industry, dye, dynamite, metallurgy, machinery, ceramic etc. 4. Specification: (Technical Standards:GB/T4553-2002) Item Unit High G. First G. Qualified G. Dry powder G. Assay % 99.7 99.3 98.5 99.3 Sodium nitrite % 0.01 0.02 0.15 0.02 Chlorides % 0.25 0.30 -- 0.25 Water insolubles % 0.03 0.06 -- 0.03 Moisture % 1.0 1.5 2.00 0.2 Carbonates % 0.05 0.10 -- 0.1 Iron % 0.005 -- -- 0.005 Loose degree -- -- -- 95 5.Package: net 25kg/50kg net each in plasic woven inner plasic bag,or 500kg net each in flexible container.
Wq-fdo optical dissolved oxygen sensor description The wq-fdo optical dissolved oxygen transmitter is an instrument designed for measuring dissolved oxygen concentrations in liquids. The wq-fdo optical dissolved oxygen transmitters were developed to meet different requirements ranging from surface water monitoring programs to harsh waste water applications. The optical dissolved oxygen transmitter has been specifically designed to meet the demanding requirements of the environmental monitoring and scientific research sectors, providing long term, accurate and reliable dissolved oxygen measurement. The wq-fdo optical dissolved oxygen transmitter has extremely low power requirements and a 4-20 ma output making it ideal for incorporation into remote environmental monitoring installations. Wq-fdo optical dissolved oxygen sensor features * extremely fast and precise optical do sensor - outstanding for field and lab applications * proven green light technology for long operation life of sensor * beveled membrane repells interference that can be caused by air bubbles * universal protective armoring available * low power consumption and low maintenance * simple to integrate and operate * one year sensor life Wq-fdo optical dissolved oxygen sensor applications Long and short term monitoring for streams, rivers, lakes, aquaculture, thermocline profiling, industrial outfalls, wastewater, scientific research, homeland security, the food and wine industry, and more. Wq-fdo optical dissolved oxygen sensor specifications * dissolved oxygen accuracy: â± 0.5 % of value * dissolved oxygen repeatability: 0.01 ppmâ?? * temperatureâ?? accuracy: â±0.2'f (â±0.1'c)â?? * temperatureâ?? resolution:â?? 0.02'f (0.01'c)â?? * temperatureâ?? range: 32 to 122'f (0 to 50'câ?? * max pressure: 35 psi (25m/82ft water depth)â?? * operating voltage: 10-30 vdcâ?? * warm up time: 6 sec. Min, 8 recommendedâ??
Wq-fdo optical dissolved oxygen sensor description The wq-fdo optical dissolved oxygen transmitter is an instrument designed for measuring dissolved oxygen concentrations in liquids. The wq-fdo optical dissolved oxygen transmitters were developed to meet different requirements ranging from surface water monitoring programs to harsh waste water applications. The optical dissolved oxygen transmitter has been specifically designed to meet the demanding requirements of the environmental monitoring and scientific research sectors, providing long term, accurate and reliable dissolved oxygen measurement. The wq-fdo optical dissolved oxygen transmitter has extremely low power requirements and a 4-20 ma output making it ideal for incorporation into remote environmental monitoring installations. Wq-fdo optical dissolved oxygen sensor features * extremely fast and precise optical do sensor - outstanding for field and lab applications * proven green light technology for long operation life of sensor * beveled membrane repells interference that can be caused by air bubbles * universal protective armoring available * low power consumption and low maintenance * simple to integrate and operate * one year sensor life Wq-fdo optical dissolved oxygen sensor applications Long and short term monitoring for streams, rivers, lakes, aquaculture, thermocline profiling, industrial outfalls, wastewater, scientific research, homeland security, the food and wine industry, and more. Wq-fdo optical dissolved oxygen sensor specifications * dissolved oxygen accuracy: +/- 0.5 % of value * dissolved oxygen repeatability: 0.01 ppm, * temperature, accuracy: +/-0.2'f (+/-0.1'c), * temperature, resolution:, 0.02'f (0.01'c), * temperature, range: 32 to 122'f (0 to 50'c, * max pressure: 35 psi (25m/82ft water depth), * operating voltage: 10-30 vdc, * warm up time: 6 sec. Min, 8 recommended,
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Do1200 and do1200tc dissolved oxygen sensors Item no.: do1200/h, do1200/t, do1200tc/h, do1200tc/t, 971598, 971598tc Reliable galvanic sensing technology Compact 12mm design For portable, laboratory or on-line use Optional integral atc element Easy to use pre-membraned replacement caps The do1200 and do1200tc feature dependable galvanic technology. No warm up period is required. Sensors are supplied with fast responding hdpe membrane caps for portable or lab use. Optional ptfe membrane caps are available for on-line or heavy uv exposure applications. Fill solution is replaceable when required. The do1200 is supplied without internal temperature compensation. The do1200tc can be supplied with a variety of user defined atc elements. Standard cable length is 2.5 feet with a tinned lead termination. Longer cable lengths and connectors are available for an additional charge. For on-line use, our fc75p 3/4 inch in-line fitting may be ordered to provide for mounting into 3/4 inch fnpt threaded tees. Do1200 laboratory dissolved oxygen sensor specifications Range: 0-20 mg/l Body material: epoxy and noryl Max temperature: 50 degrees c Saturation output: Hdpe = 47mv +/- 9mv, Ptfe = 33mv+/-9mv Pressure: 0-100 psig (7.5 bar) Calibration: single point in air Response time: after equilibration, hdpe 1 minute for 2mv, ptfe 2 minutes for 2mv
WQ401 Dissolved Oxygen Sensor Description WQ401 Dissolved Oxygen Sensor is a rugged and reliable water oxygen measuring device. The WQ401's sensor is attached to 25 ft of marine grade cable, with lengths up to 500 ft available upon request. The sensor's output is 4-20 mA with a three wire configuration. The sensor's electronics are completely encapsulated in marine grade epoxy within a stainless steel housing. The unit uses a removable shield and dissolved oxygen element for easy maintenance. WQ401 Dissolved Oxygen Sensor Features * Measure dissolved oxygen in situ * Fully encapsulated electronics * 4-20 mA output * Marine grade cable with strain relief * Stainless steel housing * Replaceable dissolved oxygen element WQ401 Dissolved Oxygen Sensor Applications Ideal for stream and lake monitoring, aquaculture studies, baseline analyses, mitigation monitoring, and other environmental applications. WQ401 Dissolved Oxygen Sensor Specifications * Output: 4-20 mA * Range: 0 to 100% saturation, 0 to 8 ppm, temperature compensated to 77'F (25'C) * Accuracy: ±0.5% full scale * Maximum Pressure: 40 psi * Operating Voltage: 10 to 36 VDC * Current Draw: 15.5 mA plus sensor output * Warm-up Time: 10 seconds minimum * Operating Temperature: -40 to +131'F (-40 to +55'C)
OPTOD Optical Dissolved Oxygen & Temperature Sensor Optical technology: The OPTOD sensor is based on luminescent optical technology and is approved by the ASTM International Standard Method D888-05. Without calibration requirements, and thanks to an ultra low power technology, the OPTOD sensor is suitable for field work as well as long and short term monitoring. With no oxygen consumption, this technology gives an accurate measure in all situations, even in very low oxygen concentrations. Digital Technology: The "smart" OPTOD sensor stores calibration and history data within the sensor. This allows you a "plug and play" system without re-calibration. Digitally optimised measurement technology * Optical luminescence technology requires minimal maintenance * Digital sensor: Modbus RS-485 * No calibration required and therefore little to no drift occurs * Robust and Watertight OPTOD Optical Dissolved Oxygen & Temperature Sensor Applications * Industrial effluent treatment * Urban waste water treatment * Surface water monitoring * Drinking water OPTOD Optical Dissolved Oxygen & Temperature Sensor Specifications * Measurement ranges: 0.00 to 20.00 mg/L * Resolution: 0,01 * Accuracy: +/- 0.1mg/L, +/- 0.1 ppm, +/- 1 % * Response time: 90% of the value in less than 60 seconds * Temperature compensation: Via CTN * Operating temperature: -10°C to +60'C * Signal interface: Modbus RS-485 (standard) and SDI-12 (option) * Sensor power-supply: 5 to 12 volts
Do1200 and do1200tc dissolved oxygen sensors Item no.: do1200/h, do1200/t, do1200tc/h, do1200tc/t, 971598, 971598tc Do1200 dissolved oxygen sensor features * reliable galvanic sensing technology * compact 12mm design * for portable, laboratory or on-line use * optional integral atc element * easy to use pre-membraned replacement caps Do1200 dissolved oxygen sensor description The do1200 and do1200tc feature dependable galvanic technology. No warm up period is required. Sensors are supplied with fast responding hdpe membrane caps for portable or lab use. Optional ptfe membrane caps are available for on-line or heavy uv exposure applications. Fill solution is replaceable when required. The do1200 is supplied without internal temperature compensation. The do1200tc can be supplied with a variety of user defined atc elements. Standard cable length is 2.5 feet with a tinned lead termination. Longer cable lengths and connectors are available for an additional charge. For on-line use, our fc75p 3/4 inch in-line fitting may be ordered to provide for mounting into 3/4 inch fnpt threaded tees. Do1200 dissolved oxygen sensor specifications * range: 0-20 mg/l * body material: epoxy and noryl * max temperature: 50 degrees c * saturation output: hdpe = 47mv +/- 9mv, ptfe = 33mv+/-9mv * pressure: 0-100 psig (7.5 bar) * calibration: single point in air * response time: after equilibration, hdpe 1 minute for 2mv, ptfe 2 minutes for 2mv
Do sensor dissolved oxygen sensor water quality control sensor kds-25b Model number: kds-25b Description The gs yuasa dissolved oxygen sensor kds-25b is a unique Galvanic cell type sensor which was developed for water quality Control. Its most notable features are long life expectancy and it Is not influenced by co2. Features: * long life * virtually no influence from co2 * no external power supply required for sensor Operation * no warmup time is required Applications: * water quality control
Rdo-200 fluorescence dissolved oxygen sensor application Widely used in online dissolved oxygen monitoring for power plant, chemical, industrial wastewater, pharmaceutical, biochemical and water treatment industry. Rdo-200 fluorescence dissolved oxygen sensor feature * 0-20mg/l or 0-200% saturation * 0 ~ 50'c; ip68 protection rating * no film, no electrolyte, not polarization * no consumption of oxygen, the flow rate is not affected * built-in temperature sensor, automatic temperature compensation * chemical interference from sulfide * in drift, fast response, more accurate measurements * maintenance-free longer applicable period, lower cost * fluorescent cap replacement is simple * supports rs-485, modbus protocol Technical instructions Do range: -20mg/l 0-20 mg/l or 0-200% saturation Reaction time: 10 sec Degree of protection: ip68 Do accuracy±1% Sensor drift:
Submersible galvanic dissolved oxygen sensors Item no.: do6400/h, do6400/t, do6400tc/h, do6400tc/t, do6441/t, do6442/t, Do7400/h, do7400/t, do7400tc/h, do7400tc/t, do7441/t, do7442/t Large solution capacity for long term deployment Models with and without temperature sensor Easy installation and maintenance Mv or 4-20ma output models available The do6400 & 7400 series dissolved oxygen sensors feature a large capacity electrolyte holder, positive fit, easy to replace membrane and dependable galvanic cell technology for long term deployment. The body design ensures a good grip when wet. Ideal for aquaculture and wastewater monitoring applications, these sensors require minimal maintenance. Ptfe or high-density polyethylene (hdpe) membranes are available. 2 replacement membranes, installation tool and electrolyte are included. Additonal maintennace parts are in convenient kits (see ordering information). Sensors with mv output as well as built-in 4-20ma output in 0-100% and 0-200% saturation range are available. Dissolved oxygen sensors specifications O2 measuring range: Do6400, do6400tc (0.5-20ppm), do6441(0-100%), do6442(0-200%) Do7400, do7400tc (0.03-20ppm), do7441(0-100%), do7442(0-200%) Body: material noryl Cathode: silver Anode: zinc (do6400 series), lead (do7400 series) Maximum temperature: 50 degrees c Power requirement: 12-36v dc (for models do6441, do6442, do7441 and do7442 only )
GS Yuasa Dissolved Oxygen sensor KDS-25B Features: * Long life * Virtually no in�uence from CO2 * No external power supply required for sensor operation * No warmup time is required Applications: * Water quality control The GS Yuasa Dissolved Oxygen Sensor KDS-25B is a unique galvanic cell type sensor which was developed for water quality control. Its most notable features are long life expectancy and it is not influenced by CO2. Specification: Measurement range: 0~80mg/L dissolved oxygen Accuracy in water at 25'C±1'C: ±5% (full scale) Operating conditions Atmospheric pressure: 81~203kPa (corresponds to 10m of water depth) Temperature: 5~35'C Relative humidity: 10 ~ 90%R.H. (no condensation) Thermal time constant: 10 min. or less Initial output voltage in clean air under standard test conditions: 8.0~15.0mV Standard test conditions Atmospheric pressure: 1013±5hPa Temperature: 25'C±1'C Relative humidity: 60±5%
Aromas Oils is a renowned and certified online supplier of natural essential oils Our provided Honeysuckle Essential Oil is free from harmful chemicals ensuring its safety for use Customers can acquire this oil in an airtight bottle catering to various distinctive uses and purposes Botany The flowering bush of Honeysuckle belongs to the Caprifoliaceae family in the plant world growing to a height of 186m This evergreen deciduous tree features bellshaped flowers and when its stem breaks it emits a sweet fragrance Overview of Honeysuckle Essential Oil Extracted from the bright orangecolored flowers of the plant through the steam distillation process this essential oil possesses excellent therapeutic properties making it suitable for various commercial and domestic uses Benefits of Honeysuckle Essential Oil Treats rheumatoid arthritis headache and urinary disorders Promotes sweating and counteracts poisoning Reduces skin itching inflammation and acts as a germicide Blends Well With Honeysuckle essential oil complements well with Neroli Ylang Ylang Rosehip Frankincense Mandarine Orange Orange Sandalwood and Bergamot Precautionary Measures Pregnant ladies should use it only after consulting with a doctor Diabetic patients should seek expert medical advice before using this Honeysuckle Essential Oil Those with sensitive skin should avoid sun exposure after applying this oil Botanical Name Lonicera Caprifolium CAS 223749799 Color amp Odor Yellow to Brown amp Floral Odor FEMA  NA Methods of Extraction Steam Distilled Constituents Rhodinol Benzyl Acetate Linalol Solubility Soluble in alcohol insoluble in water Specific Gravity 0955 0980 Flash Point 220 F Optical Rotation NA Major Constituents Rhodinol Benzyl Acetate Linalol Volume 100 ml 250 ml 500 ml 1 Ltr 5 Ltr 10 Ltr 25 Ltr
Aromas Oils Winter Savory Essential Oil Discover the finest quality of Winter Savory Essential Oil at the best prices on Aromas Oils a wonderful online platform This essential oil not only emanates an admirable aroma but also brings various health benefits to its users Botany Winter Savory scientifically known as Satureja Montana is a partialgreen perennial shrub belonging to the Lamiaceae family Native to Southern Europe and North Africa this woody and bushy plant features small burgundy flowers and reaches a height of 12 inches adorned with light green leaves Overview of Winter Savory Essential Oil Winter Savory Essential Oil obtained through steam distillation from the flowering tops of the Winter Savory plant carries a strong herbaceous and spicy fragrance with notes reminiscent of dried sage and thyme leaf Its antioxidants and antimicrobial properties make it a valuable addition to medicine boxes Benefits of Winter Savory Essential Oil Strengthens and supports the immune system Enhances concentration focus and promotes a good nights sleep Ideal for addressing digestive ailments such as indigestion nausea flatulence and diarrhea Blends Well With Winter Savory essential oil complements well with Frankincense Lavender Lime Bergamot Oregano Hyssop Peppermint Inula Marjoram Monarda Cardamom and Lemon Precautionary Measures Avoid oral consumption of Winter Savory essential oil Not suitable for use in aromatherapy Botanical Name Satureja Montana CAS 90106573 Color amp Odor Yellow to orange liquid spicy phenolic FEMA  No Methods of Extraction Steam Distillation Constituents Caryophyllene and geraniol Solubility Soluble in alcohol Specific Gravity 087500 to 095400 2500 C Flash Point 14500 F Optical Rotation 200 to 200 Volume 100 ml 250 ml 500 ml 1 Ltr 5 Ltr 10 Ltr 25 Ltr
Aromas Oils is your premier online destination for acquiring topquality natural Euphorbia essential oil Our company ensures the convenient delivery of 100 pure essential oils right to your doorstep at remarkably affordable prices As leading Euphorbia Essential Oil suppliers manufacturers and wholesalers we cater to customers not only in the USA UK and Canada but across the globe Botanical Insight Euphorbia a perennial plant belonging to the Euphorbiaceae plant family boasts thick and robust roots Predominantly thriving in tropical and subtropical regions of Africa and America this plant stands as a testament to natures diversity Overview of Euphorbia Essential Oil Our Euphorbia Essential Oil is meticulously extracted from aerial plant parts utilizing the advanced technique of steam distillation This yellowhued oil exhibits remarkable efficacy in addressing various health concerns including asthma hypertension and skin disorders Benefits of Euphorbia Essential Oil Snake Bite Treatment Effectively alleviates pain and neutralizes toxins from snake bites Eye Infection Remedy Ideal for treating eye infections like conjunctivitis AntiInflammatory Properties Soothes respiratory ailments such as asthma bronchitis and sore throat by calming the respiratory tract Blends Well With Euphorbia essential oil harmoniously blends with lavenders and other silvergrey leaved plants like Convolvulus cneorum enhancing its aromatic profile Precautionary Measures Pregnant and nursing mothers along with individuals under medical supervision should avoid using this essential oil Always dilute the oil with a suitable carrier oil before skin application Refrain from using the oil on irritated skin wounds or abrasions Internal use is not recommended unless directed by a licensed physician Specifications Botanical Name Euphorbia Pucherrima CAS 73049602 Color amp Odor Yellow in color FEMA  NA Methods of Extraction Steam Distillation Constituents Flavonoids Terpenoids Solubility Soluble in Alcohol Specific Gravity 089 Flash Point 210 F Optical Rotation Between 142 and 146 Major Constituents Flavonoids Terpenoids Choose Aromas Oils for an unparalleled experience in acquiring the finest Euphorbia Essential Oil Volume 100 ml 250 ml 500 ml 1 Ltr 5 Ltr 10 Ltr 25 Ltr
Aromas Oils Unleashing the Magic of Niaouli Essential Oil Discover the enchanting healing prowess and rejuvenation of Niaouli essential oil Aromas Oils a premier online wholesale megastore offers you the opportunity to procure 100 pure oil without any hassle This versatile oil finds application in aromatherapy and therapeutic practices Botany Known as the broadleaved paperbark Melaleuca viridiflora is a mediumsized shrub adorned with red yellow and green flowers Each spike bears up to 25 flower groups surrounded by 5 bundles of stamens The leaves can extend up to 195 mm in size Overview of Niaouli Essential Oil Utilizing the steam distillation method leaves and twigs are distilled to create Niaouli essential oil With properties like analgesic antibacterial antiinflammatory antiseptic and antirheumatic this oil presents a color spectrum ranging from slight yellow to greenish hues Benefits of Niaouli Essential Oil Analgesic Power Relieves pain during headaches migraines toothaches earaches and sprains Circulation Booster Enhances blood circulation alleviating the body from rheumatism arthritis and gout Antiseptic Marvel Used in medicines to accelerate the healing and rejuvenation process Home Guardian Eliminates bacteria and fungi at home with its antifungal and antibacterial properties Aromatherapy Ally Widely used in aromatherapy to relax the nervous system and balance hormones Blends Well With Niaouli essential oil harmonizes seamlessly with Thyme Lavender Lime Lemon Myrtle Orange Pine Rosemary Fennel Eucalyptus Cajeput Juniper Peppermint and Basil Precautionary Measures While Niaouli essential oil has no proven side effects a patch test is advisable to guard against potential allergic reactions Pregnant and lactating women should avoid consumption as a precautionary measure Botanical Name Melaleuca Viridiflora CAS NA Color amp Odor Colorless to yellow liquid 22C with a sharp cineolic odor FEMA  NA Methods of Extraction Steam Distillation Constituents 18Cineole aPinene Solubility Insoluble in water soluble in alcohol and oils Specific Gravity 0921 72F Flash Point 123F Optical Rotation 010 to 1018 Volume 100 ml 250 ml 500 ml 1 Ltr 5 Ltr 10 Ltr 25 Ltr
Agricultural urea N46 46% Properties of urea Urea, also known as carbamide, carbamide and urea. Pure urea is white, tasteless, odorless, needle shaped or prismatic crystal, with a melting point of 132.7 â?? under normal pressure. It is hygroscopic, deliquescent, hydrolyzable, and weakly alkaline. It is made into compound fertilizer with acid fertilizer. Urea is an organic compound composed of carbon, nitrogen, oxygen and hydrogen. It is a white crystal. Urea is one of the simplest organic compounds. The most important use of urea is as fertilizer. Its nitrogen content is more than 46%. After being converted into ammonium carbonate in soil, urea is hydrolyzed and absorbed by plants. It is the nitrogen fertilizer with the highest nitrogen content at present. Molecular formula of urea: CO (NH2) 2, molecular weight 60.06, density 1.335g/cm �³ï¼? The melting point is 132.7 â??. Soluble in water and alcohol, insoluble in ether and chloroform. It is slightly alkaline. It can react with acid to form salt. It has hydrolysis. Condensation reaction can be carried out at high temperature to produce biuret, triuret and cyanuric acid. Heat to 160 â?? and decompose to generate ammonia gas and turn into cyanic acid at the same time. Urea can be hydrolyzed into ammonia and carbon dioxide under the action of acid, alkali and enzyme (acid and alkali need to be heated). Unstable to heat, heat to 150 â??ï½? 160 â?? to deamination to biuret. Urea is easily soluble in water, 105g can be dissolved in 100ml water at 20 â??, and the aqueous solution shows neutral reaction. There are two kinds of urea products: crystalline urea is white acicular or prismatic crystal with strong hygroscopicity; Granular urea is a translucent particle with a particle size of 1~2mm, which has a smooth appearance and improved moisture absorption. Urea is a physiologically neutral fertilizer, which does not leave any harmful substances in the soil and has no adverse effects after long-term application. However, a small amount of biuret, also known as biuret, will be produced when the temperature is too high during granulation, which has an inhibitory effect on crops. Urea is molecular before conversion and cannot be adsorbed by soil, so it should be prevented from being lost with water; The ammonia formed after conversion is also volatile, so urea should also be deeply covered with soil. Urea is the first synthetic organic substance and widely exists in nature, such as 0.4% urea in fresh human feces. The new version of national standard GB/T2440-2017 for urea has been officially implemented since July 1, 2018. Compared with the replaced 2001 standard, certain adjustments have been made. New standard GB/T2440-2017
Sodium percarbonate is a white, crystalline compound commonly used as an environmentally friendly oxygen bleach and cleaning agent. It releases hydrogen peroxide when dissolved in water, making it an effective stain remover, disinfectant, and laundry booster. Sodium percarbonate is particularly popular in green cleaning products and is used in applications ranging from laundry and dishwasher detergents to deck and patio cleaners. It is valued for its ability to break down stains and organic matter, making it a versatile and eco-friendly choice for various cleaning and disinfecting tasks, with the added benefit of environmentally safe byproducts.
