METHOD OF CLEANING SUBJECT SURFACE, MADE OF NOBLE METALS Russian patent published in 2017 - IPC C23G1/00 C23G1/14 

Abstract RU 2631229 C1

FIELD: chemistry.

SUBSTANCE: method consists in using a cleaning solution containing wt %: tartaric acid 1.5, syntanol DS-10 0.2, ethylene glycol 2.5, sodium components 9.0, distilled water up to 100.0. As the sodium components, disodium salt of ethylenediamine succinic acid of 5.0 wt % and sodium hydroxide of 4.0 wt %.

EFFECT: it is allowed to clean items made of noble metals in a gentle way, with maximum preservation of the surface structure and the use of more environmentally friendly components.

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RU 2 631 229 C1

Authors

Dremleva Olga Yurevna

Nikolskij Viktor Mikhajlovich

Loginova Evgeniya Sergeevna

Lukyanova Natalya Ivanovna

Dates

2017-09-19Published

2016-11-30Filed