C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/111, 31/71, 3
C01B 17/69 (2006.01) C09K 15/32 (2006.01)
Patent
CA 1334123
The present invention provides a stabilized concentrated sulphuric acid composition containing a chemical additive selected from a group of aminoalkylphosphonates that increases the precipitation threshold of impurities in solution, thereby suppressing the precipitation of said impurities and the formation of "cloudy acid".
586929
Burton John Thomas
Drexler Drew John
Chemtrade Logistics Inc.
Osler Hoskin & Harcourt Llp
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