FIELD: chemistry.
SUBSTANCE: invention can be used in paint-and-varnish industry. The method of producing a phosphate-containing pigment involves adding phosphoric acid to an iron (II) sulphate solution and treating the mixture with a product containing amine groups, filtration, washing and drying. The product which contains amine groups used is hexamethylene diamine and the mixture is treated with said product until achieving pH 5.5-8.
EFFECT: invention improves anticorrosion properties of the pigment.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING IRON PHOSPHATE-CONTAINING PIGMENT | 2010 |
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| METHOD OF PREPARING SHELL PIGMENT | 1996 |
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| METHOD FOR PROCESSING OF EXHAUSTED SOLUTIONS COMPRISING COMPOUNDS OF HEXAVALENT CHROMIUM | 1996 |
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RU2110486C1 |
