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Potassium Carbonate

Molecular formula K2CO3
CAS No. 584-08-7
Executive standard Industrial grade potassium carbonate GB/T1587-2016
Food additive potassium carbonate GB25588-2010
Product Usage (1) Glass industry: The production of optical glass can improve glass transparency, strength and refractive index.
(2) Reagent industry: high-purity analysis, emission spectrum analysis, etc. It can also be used as a fluxing agent for silicate and insoluble sulfate, a water-absorbing agent for organic liquids, electroplating, fertilizer, and photographic industries.
(3) Food industry: Alkaline agent and dough improver, and can inhibit the sourness of noodles. It can be used as a leavening agent in food and can be used for noodles.
(4) Light industry: printing and dyeing, soap, enamel, preparation of potassium salt, synthetic ammonia decarbonylation, also used in color TV industry, as gas adsorbent, dry powder fire extinguishing agent, rubber anti-aging agent, etc.; used for washing of exposed photosensitive materials Processing.
(5) Pharmaceutical industry: synthetic ammonia decarbonylation, additives, pharmaceutical intermediates.
Index

①I(mǎi)ndices of industrial grade potassium carbonate:

Item Premium First grade
Total alkalinity as K2CO3(%) Min 99 Min 98.5
Fe(ppm) Max 10 Max 30
Kcl(%) Max 0.01 Max 0.1
K2SO4(%) Max 0.01 Max 0.1
Ig-Loss(%) Max 0.6 Max 1
Warter Insoluble(%) Max 0.02 Max 0.05

②Indices of food additive potassium carbonate:

Item Standard value
Content,≥% 99
Fe,≤ppm 10
arsenic,≤ppm 2
Potassium Chloride,≤% 0.01
Potassium Sulfate,≤% 0.01
Lg-loss,≤% 0.6
Moisture,≤% 0.02
Heavy metal,≤ppm 10
Exterior White, powder or granular

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