Patent ID: 7405334

Claim:
A process for reducing the concentration of at least one acidic contaminant selected from the group consisting of HF, HCl, HBr, HI, HNO 3 and H 2 SO 4 in a mixture of at least one fluorinated hydrocarbon and said at least one acidic contaminant comprising: contacting said mixture with at least one phosphorous oxyacid salt, wherein if said salt is in aqueous solution, said aqueous solution has a pH of from about 6 to about 10, and recovering said at least one fluorinated hydrocarbon having reduced concentration of said at least one acidic contaminant, wherein said at least one fluorinated hydrocarbon is selected from the group consisting of: (i) unsaturated acyclic fluorinated hydrocarbons of the formula C n H p F q , wherein n is an integer from 2 to 6, p is an integer from 0 to 11, q is an integer from 1 to 12, and the sum of p and q is equal to 2n, and (ii) unsaturated cyclic fluorinated hydrocarbons of the formula C t H u F v , wherein t is an integer from 3 to 6, u is an integer from 0 to 9, v is an integer from 1 to 10, and the sum of u and v is equal to 2t−2.