| 摘要 |
FIELD: chemical treatment of metals and alloys. SUBSTANCE: ecologically pure solution comprises, g/l: tannide and/or extract of vegetable tanning agent, 5-50; 0.0001-0.0005 benzotriazole, 0.0001-0.0005; and monosubstituted sodium phosphate, 0.02-2.0. Solution requires no cleaning structures and is used for decontaminating sewage. Solution has high protection properties and makes it possible to control metallurgical and production defects. EFFECT: improved properties of the solution. 1 tblp |
