C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 5/12 (2006.01) C09K 15/26 (2006.01) C23G 1/24 (2006.01)
Patent
CA 2066054
A process for preventing or removing calcium and rust scale deposits from surfaces which are in contact with aqueous systems comprising adding to the aqueous system 3,5-bis(di-N,N-(carboxymethyl)aminomethyl)-4- hydroxybenzenesulfonic acid in an amount effective to remove the scale and rust deposits.
Henry Wayne L.
Kreh Robert P.
Betzdearborn Inc.
Gowling Lafleur Henderson Llp
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