What is refrigerant naming rules

The name of the refrigerant is not arbitrary, and each of the refrigerant has its naming rules. The universal in the world today is in 1967, the American society of heating refrigeration engineering for refrigerant naming standards. The serial number of the standard approach is to build the refrigerant of the English word of & other; refrigerant” The first letter & other; R” Combined with the structure of the chemical formula, as long as know the chemical formula, can write the code. Take a look at below refrigerant how specific name. 1, inorganic compounds refrigerants such as ammonia, named: r717 ( Molecular formula NH3) 。 “ 7' On behalf of inorganic compounds, 17 for the integer part of butane gas into component. 2, halogenated hydrocarbon, and the general formula of alkane hydrocarbon compounds molecules to CmH2m + 2; The general formula of halogenated hydrocarbon molecules to CmHnFxClyBrz ( 2 m + 2 = n + x + y + z) , their sigil rules for R ( m - 1) ( n + 1) ( x) B( z) 。 For example: methylene fluoride a chloride, molecular formula for CHF2Cl, m - 1 = 0, the n + 1 = 2, x = 2, z = 0, thus, code-named R22. Two fluorine methylene chloride, molecular formula for CF2Cl2, m - 1 = 0, the n + 1 = 1, x = 2, z = 0, thus, code-named R12. 3, non azeotropic mixed refrigerants composed of two or more than two mutually insoluble single refrigerant mixture of solution. Non azeotropic mixed refrigerants shorthand notation for R4 ( ) 。 Parentheses represent a set of Numbers, this group of Numbers to give a name to the refrigerant has serial number, start at 00. 4, azeotropic mixture refrigerants composed of two or more than two mutually soluble single refrigerant at room temperature in a certain proportion. Azeotropic mixture refrigerant shorthand notation for R5 ( ) 。 Parentheses represent a set of Numbers, this group of Numbers to give a name to the refrigerant has serial number, start at 00.

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