819-07-8 Usage
General Description
1,1,1-Trifluoronitroethane, also known as HFC-143a, is a chemical compound with the formula CF3CH2ONO2. It is a clear, colorless liquid that is commonly used as a refrigerant due to its low ozone depletion potential and global warming potential. 1,1,1-Trifluoronitroethane is also used as a propellant in aerosol products and as a solvent in various industrial applications. It is considered to be relatively non-toxic and non-flammable, making it a preferred choice in certain industrial and consumer goods applications. However, it is important to handle this chemical with care and follow appropriate safety protocols to minimize potential health and environmental risks.
Check Digit Verification of cas no
The CAS Registry Mumber 819-07-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 819-07:
(5*8)+(4*1)+(3*9)+(2*0)+(1*7)=78
78 % 10 = 8
So 819-07-8 is a valid CAS Registry Number.
819-07-8Relevant articles and documents
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Bissell,E.R.,Fields,D.B.
, p. 5737 - 5743 (1970)
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Process for the preparation of fluorinated nitroalkanes
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, (2008/06/13)
In the conjugated nitrofluorination of an olefin by reacting an olefin of the formula STR1 in which R1, R2, R3 and R4 each independently is hydrogen, fluorine, chlorine, bromine, alkyl, halogenoalkyl or cycloalkyl, or R2 and R4 together are an alkylene radical of 3 to 6 carbon atoms, with hydrogen fluoride and nitric acid to produce an α-fluorinated nitroalkane of the formula STR2 the improvement which comprises effecting the reaction in a vessel protected against corrosion employing about 1 to 1.1 mols of hydrogen fluoride and about 1 to 2 mols of nitric acid per mol of olefin. The process uses much less HF than heretofore and the products are useful intermediates in making herbicides. Some of the products are new.
