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:
2-Naphthol Basic information Chemical Properties Application Preparation Product Name: 2-Naphthol Synonyms: c.i.37500;c.i.azoiccouplingcomponent1;c.i.developer5;Developer A;Developer AMS;Developer BN;developera;developerams CAS: 135-19-3 MF: C10H8O MW: 144.17 EINECS: 205-182-7 Product Categories: Fluorescent;Naphthalene;pigments;alcohol;MICROCIDIN;Color Former & Related Compounds;Developer;Functional Materials;Intermediates;Aromatic Compounds;Alphabetical;Bioactive Small Molecules;Biochemicals and Reagents;Building Blocks;C9 to C20+;Cell Biology;Chemical Synthesis;Fluorescent Indicators and Probes;Fluorescent Probes;Labels;N;Organic Building Blocks;Oxygen Compounds;Particles and Stains;pH Sensitive Probes and Indicators;Phenols;Dyestuff Intermediates;Aromatics Mol File: 135-19-3.mol 2-Naphthol Chemical Properties Melting point 120-122 C(lit.) Boiling point 285-286 C(lit.) density 1,28 g/cm3 vapor density 4.97 (vs air) vapor pressure 10 mm Hg ( 145.5 C) refractive index 1.5762 (estimate) Fp 153 C storage temp. Refrigerator solubility methanol: soluble1g/10 mL, clear, colorless to light yellow pka 9.51(at 25C) form Powder, Crystals or Granules color White PH Range Non& uorescence (8.5) to blue & uorescence (9.5) Water Solubility 1 g/L (20 C) �»max 226nm, 265nm, 275nm, 286nm, 320nm, 331nm Merck 14,6384 BRN 742134 Stability: Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol. Major Application Display device, semiconductors, photoimaging materials, inks, toner, chalk, security paper, molding materials, tin plating method, rubber, adhesive, leather, detergent, hair dyes, antimitotic drug, anticancer agent, antiinflammatory agent, treatment of acne vulgaris (pimples) and other dermal ailments (rashes, scratches, blemishes, hair loss), disorders InChIKey JWAZRIHNYRIHIV-UHFFFAOYSA-N CAS DataBase Reference 135-19-3(CAS DataBase Reference) NIST Chemistry Reference 2-Naphthalenol(135-19-3) EPA Substance Registry System 2-Naphthalenol (135-19-3) Safety Information Hazard Codes Xn,N Risk Statements 20/22-50 Safety Statements 24/25-61 RIDADR UN 3077 9/PG 3 WGK Germany 2 RTECS QL2975000 F 8 Autoignition Temperature 430 C TSCA Yes HazardClass 9 PackingGroup III HS Code 29071590 Hazardous Substances Data 135-19-3(Hazardous Substances Data) Toxicity LD50 orally in Rabbit: 1960 mg/kg LD50 dermal Rabbit > 10000 mg/kg 2-Naphthol Usage And Synthesis 2-Naphthol Preparation Products And Raw materials
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.
Fluorescence Method Dissolved Oxygen Analyzer is based on the principle of fluorescence quenching, blue light irradiates to the fluorescent material to make the fluorescent material excitate red light, because the oxygen molecules can take away the energy (quenching reaction), the time and intensity of red light and the concentration of oxygen molecules are inversely proportional. By measuring, the phase difference is excitated between the red light and the reference light, then to calculate the concentration of oxygen molecules by corresponding to the internal calibration value. By adopting innovative new fluorescent technology, no membrane and electrolyte is needed, almost no maintenance, excellent performance, easy to operate, no oxygen consumed, can be applied to any occasion, including those low water cycle.
Product name: Medical Sodium Chloride HS Code: 2501000050 Packing: 25 or 50 kg bags Sodium chloride on a dry basis: 99-100.5% Sulfate content SO4: less than 200 ppm Magnesium and alkaline earth metals in the form of calcium (C4) less than 100 ppm Aluminum content AL: less than 0.2 ppm Iron content Fe: less than 2 ppm Heavy metals (in the form of lead) Pb: less than 5 ppm Bromide content Br: less than 100 ppm Phosphate content PO4: less than 25 ppm Potassium K: less than 500 ppm Bacterial endotoxins: less than 5 international unite/gram (
Product name: Sodium Chloride 100.5% HS Code: 2501000050 Packing: 25 or 50 kg bags Sodium chloride on a dry basis: 99-100.5% / pharmaceutical salt Sulfate content SO4: less than 200 ppm Magnesium and alkaline earth metals in the form of calcium (C4) less than 100 ppm Aluminum content AL: less than 0.2 ppm Iron content Fe: less than 2 ppm Heavy metals (in the form of lead) Pb: less than 5 ppm Bromide content Br: less than 100 ppm Phosphate content PO4: less than 25 ppm Potassium K: less than 500 ppm Bacterial endotoxins: less than 5 international unite/gram (
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
DRIED FISH MAW- SINGLE PCS Specification: Weight : 180-200 pcs/ kg Packing: 25kgs/ bag Fish maw is the dried form of fish air bladder. Fish maw can be divided into king fish maw, premium fish maw, grass seabass fish maw and fried fish maw in general. King fish maw and premium fish maw are the best quality and most valuable amongst the four types. Grass Seabass fish maw and fried fish maw are however more popular due to their economical pricing. Fish maw is also graded by their gender. Male fish bladder has thicker body and is soft and smooth, not easily dissolved in the mouth while female bladder has a thinner body
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
Advantage product with competitive price and stable supply ability 1.Product description Name: Glutaraldehyde 50% CAS NO. 111-30-8 Appearance: colorless or yellowish clear and bright liquid 2.characteristics and applications Glutaraldehyde is colorless or yellowish clear and bright liquid with slight irritating smell, and can be dissolved in organic dissolvent such as water, ether and ethanol. In water solution, Glutaraldehyde doesn't exist much in free state; instead, Glutaraldehyde makes appearance as hydrates with different forms.and most of them are hydrates with annular structure. Glutaraldehyde is reactive in property, and liable to polymerize and oxidize, which will react with compounds containing active oxygen and nitrogen. The reaction of the product with protein is mainly carried out between the carbonyl group of the former and the amino group of the latter. Among the known aldehydes, the product is one of the best cross-linking agents for proteins. Glutaraldehyde has a small influence on the activity of enzyme, and most of enzymes can be fixed under controlled condition, to cross-link without losing their activity. Contrbuting to its outstanding characteristics, the product has drawn special concern from people and been put at broad application.
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
Gelatin, E411, CAS no. 9000-70-8, Gelatin is hydrolyzate of collagen, animal beef and pork as raw materials. It is a natural nutritional food thickener. Characteristics: Gelatin can be dissolved in hot water to form a thermally reversible gel, which has extremely excellent physical properties, such as jelly force, affinity, highly dispersed, low viscosity characteristics, dispersion stability, water holding capacity, coating resistance, toughness, and reversibility. As a thickening agent, edible gelatin is widely added in the food industry, like jelly, food coloring, senior fudge, ice cream, cream cheese, yogurt and frozen food. As an experienced Gelatin manufacturer and supplier, we has been supplying and exporting Gelatin for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Gelatin food grade Specification Gelatin E No E441 Einecs No 232-554-6 CAS No. 9000-70-8 HS Code 3503001001 ITEM Specifications Appearance Yellow or yellowish granular Jelly strength (6.67%) 120 â?? 260 bloom (as per need) Viscosity (6.67%) 30- 48 Moisture 16% Ash 2.0% Transparency (5%) 200- 400mm pH (1%) 5.5- 7.0 So2 50ppm Insoluble material 0.1% Arsenic (as) 1ppm HEAVY METAL (as PB) 50PPM Total bacterial 1000cfu/ g E.coli Negative in 10g Salmonella Negative in 25g Paticle size 5- 120 mesh (as per need
SpO2 cables are specifically designed to connect the SpO2 sensor, typically placed on a patient's finger or earlobe, to the monitoring device. These cables transmit the optical signals captured by the sensor to the monitor, where the data is processed and displayed as oxygen saturation levels.
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??
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:
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 )
Product Name: Dimethyl Sulfoxide Other Name: sulfinylbis (methane);DMSO;DIMETHYL SULFOXIDE;DIMETHYL SULPHOXIDE Molecular Formula: C2H6OS Molecular Weight: 78.13 Appearance: Corlorless liquid or corlorless crystals Purity: 99% CAS Number: 67-68-5 EINECS number: 200-664-3 Supplier: ZHENYIBIO Dimethyl sulfoxide (abbreviated DMSO) is a sulfur-containing organic compound; molecule formula: (CH3) 2SO; It exhibits as colorless, odorless, hygroscopic and flammable transparent liquid at room temperature. It has both high polarity as well as high-boiling point. It also has aprotic and water-miscible characteristics. It has low toxicity, good thermal stability, and is not miscible with paraffin. It is soluble in water, ethanol, propanol, ether, benzene and chloroform and many other kinds of organic substance and is called as the "universal solvent." It is a common organic solvent which has the strongest dissolving ability. It can dissolve most the organic compounds including carbohydrates, polymers, peptides, as well as many inorganic salts and gases. It can dissolve certain amount solute whose weight is equals to 50-60% of itself (other common solvents usually only dissolve 10-20%), so it is very important in the sample management as well as high-speed screening of drugs. Under certain conditions, contact between dimethyl sulfoxide and chloride can even lead to explosive reaction.
A juicy fruit par excellence, the orange is rich in water (over 85%), which includes in its dissolved structure most of the nutrients. The candy style of oranges is balanced with the aid of a bitter style given through their herbal natural acids. They are quite significant (1.2%) and are usually represented by citric acid (there is also some malic acid and traces of some other less common natural acids such as ferulic, caffeic, or paracoumaric acid). During maturation, the carbohydrate content increases, whilst the natural acids decrease. It is the relative percentage between sugars and acids that gives the orange its characteristic flavour, greater or much less candy or sour. The different electrical aspects have a negligible function in the composition of the orange lipids (or fats) and are targeted in the seeds, with the pulp containing solely hint quantities (less than 0.2%). As for the proteins, they are very scarce in the orange (1%). Specifications of Orange Color ; Golden Yellow with a tinge of orange HSN Code : 8051000 Nutrients : Magnesium, Vitamin A, Folate, Fiber Size ; Oval, Round 200-1000 grams Health Benefits : Good for eyes, skin & hair. Helps in digestion and bone health
