HFC-134alubricityviscositymiscibilitysteelaluminiumA study of polyolester oils (POE) for compressors using an ozone-friendly refrigerant is presented here. The effect of the chemical structure of POE was studied in relation to three lubricant properties: miscibility with HFC-134a (CF3-CH2F), ...
Detail of GB/T 18826-2016 Introduction of GB/T 18826-2016 Contents of GB/T 18826-2016 Standard No.: GB/T 18826-2016 English Name: 1,1,1,2-Tetrafluoroethane(HFC-134a)for industrial use Chinese Name: 工业用1,1,1,2-四氟乙烷(HFC-134a) Chinese Classification: G17 General organic chemic...
99.99% Purity Factory Supply Tetrafluoroethane Gas R134A Refrigerant US$1.00 / can Abrasive Resistant Ceramic Coating, Wear Compound US$15.00-16.00 / kg Quick Bond 4min Epoxy Steel Epoxy Ab Adhesive Epoxy Resin Glue US$1.10-1.20 / Piece...
Particularly preferred propellent gases are fluorinated alkane derivatives selected from HFC134a (1,1,1,2-tetrafluoroethane), HFC227 (1,1,1,2,3,3,3-heptafluoropropane) and mixtures thereof. The propellant-containing aerosols for inhalation which may be used within the scope of the use ...
[1,1'- biphenyl]-4-yl]azo]-5-hydroxy- 6-(phenylazo)naphthalene-2,7- disulphonate (C.I. Direct Black 38) 1000 1937-37-7 Ethylhexyl diphenyl phosphate (EHDPP) 1000 1241-94-7 Fluorinated greenhouse gases (GHG) (HFC, PFC, SF6) Not detectable Restriction applies to both manufacturing ...
are being developed in both liquid and gas formulations to replace HFCs such as 245fa and 134a. AFA-G1, and to a lesser extent AFA-G2, have shown to potentially compete with HFC-134a in terms of solubility in polyol, dimensional stability, and K-factor, although...
Experience of Retrofitting Automotive Air-Conditioning from CFC12 to HFC134a This method only requires the use of conventional refrigerant recovery and recycle machines and offers a cost effective method of retrofitting a range of automotive air-conditioning systems to HFC 134a. AM Smith,MC Beggs,BD...
“Human safety and pharmacokinetics of the CFC alternative propellants HFC 134a (1,1,1,2-tetrafluoroethane) and HFC 227 (1,1,1,2,3,3,3-heptafluoropropane) following whole-body exposure”. Regul Toxicol Pharmacol. Aug. 2000; 32(1):22-35. Abstract only. Victor W. Pikes et al.; ...
The EPA recently mandated that the use of hydrofluorocarbon (HFC) blowing agents with high global warming potential (GWP) be phased out in polyurethane foam production. One solution is to use low-GWP hydrofluoroolefin (HFO) blowing agents instead. A number of formulating challenges come with co...
The present invention provides a method of treating a corticosteroid-responsive disease of the upper or lower airway passages and/or of the lungs in patients afflicted with said disease, which comprises administering once-a-day to said passages or lungs of said patients a substantially non-systemati...