Flammable refrigerants banned.The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP DATCP Department of Agriculture, Trade and Consumer Protection (Wisconsin) ) wants to make permanent the emergency rule banning the sale and use of HC-12a, a refrigerant re·frig·er·ant adj. 1. Cooling or freezing; refrigerating. 2. Reducing fever. n. 1. A substance, such as air, ammonia, water, or carbon dioxide, used to provide cooling either as the working substance of in mobile air conditioning systems, which DATCP calls a "flammable and extremely hazardous." HC-12a contains liquefied petroleum gas liquefied petroleum gas or LPG, mixture of gases, chiefly propane and butane, produced commercially from petroleum and stored under pressure to keep it in a liquid state. and has been marketed by an Idaho company which is under investigation by both Wisconsin and federal authorities. In addition to HC-12a, the emergency rule also bans the sale and use of any refrigerants Chemical refrigerants are assigned an R number(sometimes the label replaces it with the word Freon) which is determined systematically according to molecular structure. The following is a list of refrigerants with their R numbers, IUPAC chemical name, molecular formula, and CAS number. containing butane butane (by  `tān), C4H10, gaseous alkane, a hydrocarbon that is obtained from natural gas or by refining petroleum. , propane or other gaseous hydrocarbons, which, in any leak in an air conditioning system could cause a fire or an explosion. The Midwest Equipment Dealers Association (MEDA) asks dealers who are using or who are aware of others using the banned refrigerants to notify MEDA. In Guidelines to Profit, the association newsletter, MEDA explains, "While the emergency rule is for Wisconsin only, the products addressed may also be in violation of federal standards and should not be used in any state." |
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