White Powder Sodium Bicarbonate NaHCO3 99.0-100% Purity Mineral Processing Chemical CAS 144-55-8
Sodium bicarbonate (baking soda) is manufactured using sodium sulfate (Na₂SO₄) as raw material sourced from sodium nitrate tailings waste in the sodium powder industry and by-product waste from environmental protection industries including new energy, coal chemical, metallurgical steel, and textile sectors. The production involves a double decomposition reaction with ammonium bicarbonate (NH₄HCO₃), yielding the by-product fertilizer ammonium sulfate ((NH₄)₂SO₄). This product features low chlorine (or chlorine-free) characteristics to meet specific industry requirements for chlorine content.
| Test Items | Test Standard |
|---|---|
| Total Alkali (as NaHCO₃ on dry basis) | 99.0~100% ≥ |
| Mass Fraction on Drying Loss | 0.20% ≤ |
| pH | 8.5 |
| As | 1.0% ≤ |
| Ammonium | 0.20% ≤ |
| Chloride (as Cl) | 0.4 |
| Whiteness | 85 |
Baking soda, also known as edible alkali, serves multiple industrial functions including:
- Analytical reagent and organic synthesis
- Pharmaceutical applications (treatment of excessive stomach acid)
- Starter culture for baking pastry
- Fire extinguishing agent (foam or dry powder)
- Movie production and leather tanning
- Mineral processing, smelting, and metal heat treatment
- Fiber and rubber industry applications
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