Dicyandiamide For Epoxy Resin. Used as a curing agent.(6μm-30μm)
The ultrafine powder mineralization dicyandiamide (cyano metformin). It contains 2% of anticaking agent, to prevent the reunion, easy to use. It as a latent curing agent, used for Epoxy Resin. Epoxy Resin Epoxy Resin,Additive For Epoxy Resin Production,Dicyandiamide For Epoxy Resin,Dcda For Epoxy Resin NingXia Yuanda Xingbo chemical CO.,LTD , http://www.ydxbchem.com
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R134a Refrigerant Gas Above 99.9% Purity Gas For Cooling
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Quick Detail:
1,1,1,2-Tetrafluoroethane, R-134a or HFC-134a, is a haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with less ozone depletion potential. It has the formula CH2FCF3 and a boiling point of −26.3 °C (−15.34 °F) at atmospheric pressure. R-134a cylinders are colored light blue.
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Description:
R134a,1,1,1,2-Tetrafluoroethane first appeared in the early 1990s as a replacement for dichlorodifluoromethane (R-12), which has ozone depleting properties. 1,1,1,2-Tetrafluoroethane has been atmospherically modeled for its impact on depleting ozone and as a contributor to global warming. Research suggests that over the past 10 years the concentration of 1,1,1,2-tetrafluoroethane has increased significantly in the Earth's atmosphere, with a recent study revealing a doubling in atmospheric concentration between 2001 and 2004.
UN Number                3159
CAS Number        811-97-2
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Application:
R134a,1,1,1,2-Tetrafluoroethane is an inert gas used primarily as a "high-temperature" refrigerant for domestic refrigeration and automobile air conditioners. These devices began using 1,1,1,2-tetrafluoroethane in the early 1990s as a replacement for the more environmentally harmful R-12 and retrofit kits are available to convert units that were originally R-12-equipped. Other uses include plastic foam blowing, as a cleaning solvent, a propellant for the delivery of pharmaceuticals (e.g. bronchodilators), wine cork removers, gas dusters and in air driers for removing the moisture from compressed air. 1,1,1,2-Tetrafluoroethane has also been used to cool computers in some overclocking attempts. It is also commonly used as a propellant for airsoft airguns.
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Product:
tetrafluoroethane R134AÂ
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Property of chloride :
       Molecular Weight
102.03
Boiling Point, °C
-26.1
Critical Temperature, °C
101.1
Critical Pressure, Mpa
4.05
Specific Heat of Liquid, 30°C, [KJ/(kg•°C)]
1.51
Solubility(water, 25°C), %
0.15
ODP
0Â
GWP
0.13
Packing
Can of 220g, 250g, 280g, 300g, 340g, 500g, 800g, 1000g; Disposable cylinder 30lb/13.6kg, 50lb/22.7kg; Recyclable cylinder 400L, 800L, 926L, 1000L; ISO-Tank.
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Quality standard : Â Â Â Â Â Purity, %
≥99.9
Moisture, PPm
≤10Â
Acidity, PPm
≤0.1Â
Vapor Residue, PPm
≤100
Appearance
Colorless, No turbid
OdorÂ
No Strange StenchÂ
Application:
Refrigerant for CFC-12 substitute. Â
Competitive Advantage:
2.OEM is accepted
3.Purity more than 99.90%
4.SGS/ROSH/CE/ISO9001/ISO14001/TS16949 Certified
5.More than 10 years'export experience
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R134a Environmental Friendly Refrigerants Gas High Purity For Cooling
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R134a Refrigerant Gas Above 99.9% Purity Gas For Cooling
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Quick Detail:
1,1,1,2-Tetrafluoroethane, R-134a or HFC-134a, is a haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with less ozone depletion potential. It has the formula CH2FCF3 and a boiling point of −26.3 °C (−15.34 °F) at atmospheric pressure. R-134a cylinders are colored light blue.
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Description:
R134a,1,1,1,2-Tetrafluoroethane first appeared in the early 1990s as a replacement for dichlorodifluoromethane (R-12), which has ozone depleting properties. 1,1,1,2-Tetrafluoroethane has been atmospherically modeled for its impact on depleting ozone and as a contributor to global warming. Research suggests that over the past 10 years the concentration of 1,1,1,2-tetrafluoroethane has increased significantly in the Earth's atmosphere, with a recent study revealing a doubling in atmospheric concentration between 2001 and 2004.
UN Number                3159
CAS Number        811-97-2
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Application:
R134a,1,1,1,2-Tetrafluoroethane is an inert gas used primarily as a "high-temperature" refrigerant for domestic refrigeration and automobile air conditioners. These devices began using 1,1,1,2-tetrafluoroethane in the early 1990s as a replacement for the more environmentally harmful R-12 and retrofit kits are available to convert units that were originally R-12-equipped. Other uses include plastic foam blowing, as a cleaning solvent, a propellant for the delivery of pharmaceuticals (e.g. bronchodilators), wine cork removers, gas dusters and in air driers for removing the moisture from compressed air. 1,1,1,2-Tetrafluoroethane has also been used to cool computers in some overclocking attempts. It is also commonly used as a propellant for airsoft airguns.
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Product:
tetrafluoroethane R134AÂ
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Property of chloride :
       Molecular Weight
102.03
Boiling Point, °C
-26.1
Critical Temperature, °C
101.1
Critical Pressure, Mpa
4.05
Specific Heat of Liquid, 30°C, [KJ/(kg•°C)]
1.51
Solubility(water, 25°C), %
0.15
ODP
0Â
GWP
0.13
Packing
Can of 220g, 250g, 280g, 300g, 340g, 500g, 800g, 1000g; Disposable cylinder 30lb/13.6kg, 50lb/22.7kg; Recyclable cylinder 400L, 800L, 926L, 1000L; ISO-Tank.
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Quality standard : Â Â Â Â Â Purity, %
≥99.9
Moisture, PPm
≤10Â
Acidity, PPm
≤0.1Â
Vapor Residue, PPm
≤100
Appearance
Colorless, No turbid
OdorÂ
No Strange StenchÂ
Application:
Refrigerant for CFC-12 substitute. Â
Competitive Advantage:
2.OEM is accepted
3.Purity more than 99.90%
4.SGS/ROSH/CE/ISO9001/ISO14001/TS16949 Certified
5.More than 10 years'export experience
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Used as raw material for the manufacture of guanidine, special resin, flame retardant etc. Used as padding for manufacture of leatherette, and as curing agent for Adhesive. used as fixing agent in drying industry, as retarding agent in leather industry, as decoloring agent or floculating agent in water treatment industry, as surface hardener in steel ant industry, and as nitrification inhibitor in agriculture.
R134A Refrigerants Gas High Purity for Cooling
Model NO.: R134a
Origin: China
HS Code: 2903399090
Model NO.: R134a
Origin: China
HS Code: 2903399090
R134a Environmental Friendly Refrigerants Gas High Purity For Cooling