Rare gases we can provide:
Argon gas :99%-99.999%
Helium gas:99%-99.9999%
Neon gas :99.99%-99.999%
Krypton:99.999%
Xenon:99.999%
If you are interested in this kind of products, please feel free to contact us .
Silicon carbide si made from hte mixture of pure silica sand and green petroleum
coke in ultra high power acheson furnace. Electric current is passed through t h e conductor,bringing about a chemical reaction ni which the carbon ni the coke and silicon ni the sand combined ot form SIC and carbon monoxide gas. Silicon carbide si
With annual capacity for 60,000 tons of silicon carbide, we can provide different grade of silicon carbide to meet different clients' requirements, such as 70% SIC, 80% SIC, 85% SIC, 90% SIC, 93% SIC and 98% SIC, etc.We also provide customized size for 90% SIC and 98% SIC, such as 200 mesh and 325 mesh
CO-AM Carbon Monoxide Sensor (CO Sensor) Description
Alphasense Carbon Monoxide gas sensors operate using proven fuel cell technology.
CO-AM Carbon Monoxide Sensor sizes:
20mm diameter, the industry standard size for portable gas detectors
The Alphasense family of CO sensors have proven themselves in the field with long term stability and reliable operation, well beyond the two-year warranty, using our patented electrode technology.
CO-AM Carbon Monoxide Sensor (CO Sensor) Specifications
* Range: 5,000 ppm CO limit of performance warranty
* Sensitivity: 55 to 90 nA/ppm in 400ppm CO
* Response time t90: < 25 (s) from zero to 400ppm CO
* Resolution: < 0.5 RMS noise (ppm equivalent)
* Temperature range: -30 to 50'C
* Pressure range: 80 to 120kPa
* Humidity range: 15 to 90% rh continuous
* Weight: < 6 g
The CMM5042 carbon monoxide sensor module is a new unit which utilizes TGS5042, Figaro's electrochemical CO sensor, a widely used model for residential and commercial CO detectors with excellent durability and long term stability. This module provides analog output voltage proportional to CO concentration. CMM5042 is capable of detecting sensor trouble.
Customers can easily design CO detectors with the ready- to-use module.
CMM5042 Carbon Monoxide (CO) Gas Sensor Module Features:
* Ease of use
* Linear analog output proportional to gas concentration
* Maintenance free
* Battery operable
CMM5042 Carbon Monoxide (CO) Gas Sensor Module Applications:
* Residential and commercial CO detectors
* Ventilation control
* CO monitor for gas boilers, kerosene heaters, etc.
Items
Technical parameter
Detection Range
a1000ppm
Max detecting bound
2000ppm
Detecting life
5 years
Sensitivity
0.015
Resolution
0.5ppm
Temperature range
Pressure range
Normal atmosphere
Response time(T90)
<50S
Humidity range
Zero shift
10ppm
Stability(/Month)
<10%
Load resistance(commend)
200|
Reproducibility
<10%output value
Output linearity
Linearity
The cdm7160 co2 module uses a compact ndir co2 sensor, featuring excellent performance characteristics, including high accuracy and low power consumption. Two detector elements inside the module make absolute measurement possible.
Features
* small size
* low power
* high accuracy
* absolute measurement via dual sensors
Application examples
* indoor air quality control
* fresh air ventilators
* air conditioners
* automatic fans and window openers
CO-AE Carbon Monoxide Sensor CO Sensor Description
Alphasense Carbon Monoxide gas sensors operate using proven fuel cell technology.
CO-AE Carbon Monoxide Sensor sizes:
20mm diameter, the industry standard size for portable gas detectors
The Alphasense family of CO sensors have proven themselves in the field with long term stability and reliable operation, well beyond the two-year warranty, using our patented electrode technology.
CO-AE Carbon Monoxide Sensor CO Sensor
* Range: 10,000 ppm CO limit of performance warranty
* Sensitivity: 10 to 25 nA/ppm in 2,000ppm CO
* Response time t90: < 50s from zero to 2,000ppm CO
* Resolution: < 5 RMS noise (ppm equivalent)
* Temperature range: -30 to 50 'C
* Pressure range: 80 to 120 kPa
* Humidity range: 15 to 90 % rh continuous
* Storage period: 6 months @ 3 to 20'C(stored in sealed pot)
Matched Transmitter board for CO-AE CO Sensor
4-20 mA Digital Transmitter Board
* Factory calibration, custom-set for immediate use
* Digital zero, sensitivity and temperature compensation
* Digital and 4-20mA output
* Biased or unbiased operation
* Calibration and range change
Figaro's TGS5141 is a battery operable electrochemical sensor which uses a unique electrolyte that eliminates the need for a water reservoir. By eliminating the water reservoir used in TGS5042, the comparative size of TGS5141 is reduced to just 10% of TGS5042. With its ultra compact size, this sensor is the ideal choice for size oriented applications such as portable CO detectors, small residential CO detectors, and multi-sensor fire detectors. OEM customers will find individual sensors data printed on each sensor in bar code form, enabling users to skip the costly gas calibration process and allowing for individual sensor tracking.
Features:
* Ultra compact
* Battery operable
* High repeatability/selectivity to CO
* Linear relationship between CO gas concentration and sensor output
* Simple calibration
* Long life
* UL recognized component
* Meets UL2034, EN50291, and EN54-31 requirements
Applications:
* Residential and commercial CO detectors
* Fire detection
Specifications:
Model number: TGS5141
Target gases: Carbon monoxide
Typical detection range: 0 ~ 5,000ppm
Output current in CO: 1.2~3.2nA/ppm
Baseline offset:
Features
* Battery operable
* High repeatability/selectivity to CO
* Linear relationship between CO gas concentration and sensor output
* Simple calibration
* Long life
* UL recognized component
* Meets UL2034, EN50291, and RoHS requirements
Applications
* Residential and commercial CO detectors
* CO monitors for industrial applications
* Ventilation control for indoor parking garages
* Recreational vehicle CO detectors
* Marine CO detectors
* Fire detection
Figaro's TGS5042 is a battery operable electrochemical sensor which offer several advantages over traditional electrochemical sensors. Its electrolyte is environmentally friendly, it poses no risk of electrolyte leakage, can detect concentrations as high as 1% CO, operates in a range from -40? and +70?C, and it has lower sensitivity to interferant gases. With a long life, good long term stability, and high accuracy, this sensor is the ideal choice for CO detectors with digital display. OEM customers will find individual sensors data printed on each sensor in bar code from, enabling users to skip the costly gas calibration process and allowing for individual sensor tracking. TGS5042 utilizes a standard AA battery-sized package.
Misir is a low power (20mw4), high performance co2 sensor. Based on gss patented solid state ir sensor technology and innovative optical designs, misir is configured to meet the requirements of the hvac and demand led ventilation markets.
Low power 20mw
Measurement ranges from 0 to 1%
Low noise measurement
Introduction
Irm300 is one of the general ndir co2 gas modules, which adopting ndir principle, consists of carefully designed light chamber, precise electric circuit and intelligent software. With the help of single light source, dual channel detector, and
Unit
Storage temperature
Tstg
-20 to 80
¡ãc
Working temperature
Ta
0 to +50
¡ãc
Working humidity
Ha
0 to 90
% rh
Working pressure
Pa
0.8 to 1.2
Atm
Electric characteristics
Description
Symbol
Min.
Typical
Max.
Unit
Supply power
Vs
4.6
5
5.4
V
Maximum current
Imax
130
160-
Ma
Light current
Iavg
60
70
Ma
Frequency
F
0.2
1
2
Hz
Preheat time
Twarm
90
120
180
Sec
Performance characteristics
Description
Min
Typical
Max
Unit
Detection range
0
2000
50000
Ppm
Detection accuracy
-
¡¨¤60ppm¡¨¤5% fs
-
Ppm
T90
Diffusing
-
60
90
Sec
Pumping
-
10
20
Sec
Repeatability
Zero
Carbon monoxide (CO) is a very toxic gas with TLV of 35 ppm and it is to be removed from the air in mines, enclosed spaces, fire breaking places. Active carbon can not hold the CO due to physisorption and therefore palladium impregnated carbon was developed which became even more active due to high RH. This again one of the very specialized carbon exported by us for air purification and CO removal. It almost works like the turn over catalyst and offers very high protection against CO. This carbon has High Surface area providing almost offers endless protection against CO, Works in any RH but becomes more active at high RH.
Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly lighter than air. It is toxic to humans and animals when encountered in higher concentrations, although it is also produced in normal animal metabolism in low quantities, and is thought to have some normal biological functions. In the atmosphere it is spatially variable, short lived, having a role in the formation of ground-level ozone.
Meat coloring
Carbon monoxide is used in modified atmosphere packaging systems in the US, mainly with fresh meat products such as beef, pork, and fish to keep them looking fresh. The carbon monoxide combines with myoglobin to form carboxymyoglobin, a bright-cherry-red pigment. Carboxymyoglobin is more stable than the oxygenated form of myoglobin, oxymyoglobin, which can become oxidized to the brown pigment metmyoglobin. This stable red color can persist much longer than in normally packaged meat. Typical levels of carbon monoxide used in the facilities that use this process are between 0.4% to 0.5%.
The technology was first given "generally recognized as safe" (GRAS) status by the U.S. Food and Drug Administration (FDA) in 2002 for use as a secondary packaging system, and does not require labeling. In 2004 the FDA approved CO as primary packaging method, declaring that CO does not mask spoilage odor. Despite this ruling, the process remains controversial for fears that it masks spoilage. In 2007 a bill was introduced to the United States House of Representatives to label modified atmosphere carbon monoxide packaging as a color additive, but the bill died in subcommittee. The process is banned in many other countries, including Japan, Singapore, and the European Union.
HS : 28415000
25KG/DRUM
Application: Copper chromite has been used as an efficient catalyst of organic reactions, such as hydrogenation, dehydration, cyclization, alkylation of organic compounds, the reaction of transforming aniline into diphenylamine, and preparation of caprolactam, etc. It could also be used as a catalyst on environmental protection of eliminating organic wastes and carbon monoxide from waste gas generated by engine. It has been used as an efficient burning rate catalyst of composite solid propellants in spaceflight.
Silicon monoxide, white cubic crystal or brown powder, is insoluble in water, soluble in a mixture of dilute hydrofluoric acid and nitric acid, reacts with boiling caustic soda solution to form silicate and hydrogen, can be oxidized by halogens, and is easily oxidized in the air to form a protective film of silicon dioxide and become inactive. It has strong reducing properties at high temperatures and can reduce water vapor, carbon dioxide, limestone and other substances; it is often obtained by sublimation of silicon dioxide and elemental silicon powder in a high vacuum above 1400�°C in industry; it is often used to prepare optical glass and semiconductor materials.
Uses Used to make optical glass and semiconductor materials. The overview, physical and chemical properties, preparation methods, and uses of silicon monoxide are edited and compiled by Ding Hong of Chemicalbook (2015-11-16) Chemical properties White cubic or loess-colored amorphous powder. When heat-treated in air, the loess-colored powder turns into white powder. Melting point is greater than 1702�°C. Boiling point is 1880�°C. Relative density is 2.13. Insoluble in water, Chemicalbook is soluble in a mixture of dilute hydrofluoric acid and nitric acid. Uses Silicon monoxide powder is extremely active and can be used as a raw material for the synthesis of fine ceramics, such as silicon nitride and silicon carbide fine ceramic powder raw materials. Uses Used in the preparation of optical glass and semiconductor materials Uses As a raw material for fine ceramics, it has important value. It can also be evaporated in a vacuum and applied to the metal reflector used in optical instruments as a protective film. It can also be used to manufacture semiconductor materials. It is also used in optical glass.
Methanol, also known as methyl alcohol, amongst other names, is a chemical and the simplest alcohol, with the formula CH3OH (a methyl group linked to a hydroxyl group, often abbreviated MeOH). It is a light, volatile, colourless, flammable liquid with a distinctive alcoholic odour similar to that of ethanol (potable alcohol).A polar solvent, methanol acquired the name wood alcohol because it was once produced chiefly by the destructive distillation of wood. Today, methanol is mainly produced industrially by hydrogenation of carbon monoxide.
Methanol consists of a methyl group linked to a polar hydroxyl group. With more than 20 million tons produced annually, it is used as a precursor to other commodity chemicals, including formaldehyde, acetic acid, methyl tert-butyl ether, methyl benzoate, anisole, peroxyacids, as well as a host of more specialised chemicals..
Application Nickel plating is used in various alloys such as new silver, Chinese silver, German silver; for coins, electronic boards, storage batteries; magnets, lightning rod tips, electrical contacts and electrodes, spark plugs, mechanical parts; catalysts for the hydrogenation of oils and other organic substances. See also Raney nickel. Manufacture of monel metal, stainless steel, heat-resistant steel, heat-resistant and corrosion-resistant alloys, nickel-chromium resistance wire; alloys for electronic and space applications. Use Nickel is used in various alloys such as German silver, monel and nickel-chromium alloys; for coins; coins, metals, etc. In storage batteries; in spark plugs; and as a hydrogenation catalyst. Preparation Nickel is obtained by processing sulfide and laterite ore concentrates using pyrometallurgical and hydrometallurgical processes. The nickel matte powder obtained by roasting and smelting is further cleaned by electrometallurgical, steam and hydrometallurgical refining methods. A portion of the matte surface is baked to obtain commercially available nickel oxide agglomerates. 99.9% pure nickel can be obtained by electrolytic refining process. The purest nickel (99.97%) is obtained by vapor metallurgy. In this process, also known as the Mond Chemicalbook process, a mixture of nickel and copper sulfide is converted into oxides and then reduced by heating with water vapor at 350â??400 �° C. The resulting active form of nickel is treated with carbon monoxide to obtain volatile nickel carbonyl [Ni (CO) 4]. The reaction of the latter is reversible. Heating produces pure nickel and carbon monoxide. Overview Nickel is a slightly yellowish silvery-white metal, hard, easy to polish, magnetic (not as good as iron and cobalt) and good plasticity. Density 8.902g/cm3, melting point 1453 �° C, boiling point 2732 �° C. The chemical properties are relatively active. It has good corrosion resistance, is difficult to oxidize in air at room temperature, is not easy to react with concentrated nitric acid, and can resist alkali corrosion. Fine nickel wire is flammable, reacts with halogens when heated, and slowly dissolves in dilute acid. It can absorb a considerable amount of hydrogen. It is mainly used to make various alloys composed of iron, copper, zinc and other metals, and is widely used in cutting-edge technology, high-temperature ceramic products, corrosion-resistant alloys, chemical equipment, electronic and electrical equipment, special utensils, glass and other industries. Adding nickel to steel can improve the toughness and corrosion resistance of steel, such as nickel steel, chrome-nickel steel, etc.
Uses Palladium is a soft, white metal found in copper and nickel ores. Chlorides of this element were used in printing after the turn of the century and are also used in combination with platinum for printing. Palladium is a transition metal element used in catalytic reactions involving processes such as hydrogenation. Lindlar catalyst. One of the most important applications of palladium is the catalytic hydrogenation, dehydrogenation, and cracking of petroleum. Such reactions are widely used in organic synthesis and petroleum refining. Palladium and platinum are installed in catalytic converters in automobiles to reduce the emission of unsaturated hydrocarbon gases. Palladium is used to make surgical instruments, electrical contacts, clock springs, high-quality spark plugs, and specialty wires, and as "white gold" in jewelry. Palladium-gold alloys are widely used in dentistry and medicine. They are used to replace damaged bones and joints and as supports in bridges covered with porcelain. Palladium alloys are used in decoration and jewelry as a substitute for gold. They are used in gemstones, watch cases, and brooches. Palladium has the ability to absorb large amounts of hydrogen, making it an excellent catalyst for chemical reactions as well as catalytic converters in internal combustion engines. Palladium has the ability to absorb carbon and is used to make CO monitoring devices for carbon monoxide.
It is mainly used in thick film slurries in the electronics industry, internal and external electrode materials for multilayer ceramic capacitors; used in the manufacture of catalysts, dental materials, watches and surgical instruments, etc.; used in the manufacture of catalysts (Chemicalbook palladium asbestos, sponge palladium, etc.), low current contact points, printed circuits, alloys for watches, etc.; used in electrical instruments, precision alloys, etc.; used in electrical instruments, chemical industry and the manufacture of precision alloys and other industries.
Key Features:
1.Continuous, online monitoring
2.No cross-sensitivity due to background gases
3.No effects of humidity, moisture, temperature, radiation, vibrations etc
4.BMS, PLC integrateable
5.Suitable for any application
6.Long expected life
Key Specifications:
1.Measuring range: 0~20, 000 ppm or 0~2% Vol/ vol
2.Sensor technology: non-dispersive infra-red sensor cell, Gold plated, dual beam
3.Output: linear, proportional analog (4-20mA, 0-10V) standard
4.Optional: RS485 Modbus RTU serial interface
5.Operating temperature: 0°C to +50°C
6.Low voltage operation 24V DC
7.IP65 ingress protection with hydrophobic and oleophobic filter
8.Wall, ceiling and duct mountable
9.Polycarbonate housing with UL-V0 certified
S509 IR CO2 Gas Sensor Characteristics:
* -40'C~+70'C wide working temperature range high precision measurement
* Sensor automatic revision, zero drift an automatic adjustment
* Immune to poisonous and harmful material, have fight poisoning efficacy
* Work without oxygen to participate in
* Using the infrared principle scattered, and long service life
* Sensor work, can output the digital quantity and analog
* Has the standard output interface, peripheral use circuit is simple
Infrared gas sensor is based on bill-LangBo law and ir theory developed, we can accurately detect methane, carbon dioxide, hydrocarbons, etc.
Sensor interior has intelligent processing chip, the gas absorption of light signal conversion into gas concentration information, and digital signal and linear output voltage signal and through the software algorithm in complex linearization and precise processing temperature and humidity compensation of gas density per second, and a time interval according to certain packet format automatically send output.
When offered 3.0VDC ~ 6.0VDC range voltage, S509 infrared sensor can be in -40'C ~ +70'C Wide temperature range normal work. The sensor to provide analog and digital output interface. The user can through the interface auto receiving gas concentration data and execution, use the function such as calibration is very simple.
S509 IR CO2 Gas Sensor Specification
* Working voltage: 3.0 - 6.0V
* Resolution: 1°FS.
* Response timeT90: 30S
* Measurement accuracy: ±3%FS
* Zero repeatability: ±1%FS
* Long-term zero drift: ±1%FS/year
* Working temperature: -40'C~+70'C
* Working humidity: 0~95%RH No condensation
