| 摘要 |
FIELD: manufacture of liquid glass. SUBSTANCE: soluble sodium-potassium silicate comprises (wt %): silicon dioxide, 66,0-76,5; potassium oxide, 5.8-24.7; sodium oxide, 7.0-20.7 at silicate module of 2.75-3.7 and contains impurities; weight fraction of total iron and aluminium oxide is not higher than 0.7%, weight fraction of total calcium and magnesium is not higher than 0.4%, and weight ratio of sulfur oxide is not higher than 0.35%. EFFECT: improved quality of electrodes prepared from sodium-potassium silicate. 2 ex, 1 tbl
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