The molecular formula of sodium bicarbonate is NaHCO ₃, and the relative molecular weight is 84.01. White crystalline powder. Odorless, alkali, soluble in water. It decomposes slowly in humid air or hot air to produce carbon dioxide and lose all carbon dioxide when heated to 270 ℃. In case of acid, it will decompose strongly to produce carbon dioxide. | ||||||||
Item | Standard | Test |
Total Alkali(Quality Fraction of NaHCO3 dry basis)% ≥ | 99.0~100.5 | 100.3 |
Loss on lgnition % ≤ | 0.20 | 0.15 |
PH (10g/L) ≤ | 8.5 | 8.5 |
NaCl (Quality Fraction of NaCl dry basis)%≤ | 0.40 | 0.04 |
As Quality Fraction (Dry Basis)% ≤ | 0.0001 | <0.0001 |
Pb Quality Fraction (Dry Basis)% ≤ | 0.0005 | <0.0005 |
Ammonium | Pass the test | Pass the test |
Clarity | Pass the test | Pass the test |
Whiteness ≥ | 85 | 90.8 |