Sodium bicarbonate, with the molecular formula NaHCO3, is an inorganic compound, white powder or fine crystals, odorless, salty in taste, easily soluble in water, slightly soluble in ethanol (some say insoluble), and slightly alkaline in aqueous solution. It is prone to decomposition when heated and slowly decomposes in humid air, producing carbon dioxide. It begins to decompose at around 50 ℃ and completely decomposes when heated to 270 ℃. When encountering acid, it strongly decomposes and produces carbon dioxide. Sodium bicarbonate is widely used in industrial fields such as chemical, pharmaceutical, food, light industry, textile, etc
|
ITEMS OF TEST |
UNIT |
SPECIFICATION |
|
TOTAL ALKALI(QUALITY FRACTION OF NaHCo3| DRY BASIS) |
% |
≥99.0 |
|
SODIUM ( Na) CONTENT |
% |
≥27 |
|
LOSS ON DRYING |
% |
≤0.20 |
|
PH90 |
10g/L |
≤8.6 |
|
AS QUALITY FRACTION (DRY BASIS) |
% |
≤0.0001 |
|
Pb QUALITY FRACTION (DRY BASIS) |
% |
≤0.0005 |
|
WHITENESS |
|
≥85 |
|
CHLORID (CL) |
% |
≤0.4 |
|
CLEANNESS |
|
PASS THE TEST |
|
AMMONIUM SALT CONTENT |
|
PASS THE TEST |
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