| 主权项 |
1. A surface treatment composition, comprising:
an amount of water; an amount of 2-phosphonobutane-1,2,4 tricarboxylic acid, wherein said amount of 2-phosphonobutane-1,2,4 tricarboxylic acid comprises about 0.05 weight percent and about 0.85 weight percent; an amount of citric acid, wherein said amount of citric acid comprises about 4.0 weight percent and about 10.0 weight percent; an amount of L(+)-lactic acid, wherein said amount of L(+)-lactic acid comprises about 0.88 weight percent and about 35.2 weight percent; an amount of methanesulphonic acid, wherein said amount of methanesulphonic acid comprises about 1.7 weight percent and about 10.0 weight percent; an amount of glycolic acid, wherein said amount of glycolic acid comprises about 0.7 weight percent and about 31.5 weight percent; an amount of propylene glycol methyl ether, wherein said amount of propylene glycol methyl ether comprises about 0.1 weight percent and about 1.0 weight percent; an amount of disodium cocoamphodipropionate, wherein said amount of disodium cocoamphodipropionate comprises about 0.038 weight percent and about 3.8 weight percent; and an amount of ethoxylated alcohol including a mixture of alcohols of nine to eleven carbons containing an average of six equivalents of ethoxylation, wherein said amount of ethoxylated alcohol comprises about 0.1 weight percent and about 10.0 weight percent; and wherein said surface treatment composition includes less than 0.1 weight percent phosphorus. |
