【CAS】584-08-7 Molecular formula: K2CO3 Relative molecular mass:138.2066
Structural formula:
一．Product Property：
At room temperature, it is a white crystalline powder or particle, odorless, hygroscopic, soluble in water (solubility 111g/100mL at 25℃), insoluble in alcohols, with a density of approximately 2.428g/cm³, and a melting point of 891℃.
二．Quality Index:
| Parameter | Food-Grade (FCC) |
| Assay (K₂CO₃) | ≥ 99.0% (w/w) |
| Appearance | White granules/powder |
| Loss on Drying (105°C) | ≤ 0.5% (w/w) |
| Chlorides (as Cl⁻) | ≤ 0.003% (w/w) |
| Sulfates (as SO₄²⁻) | ≤ 0.005% (w/w) |
| Heavy Metals (as Pb) | ≤ 10 ppm |
| Arsenic (As) | ≤ 3 ppm |
| Iron (Fe) | ≤ 10 ppm |
| Sodium (Na) | ≤ 0.1% (w/w) |
| Insoluble Matter | ≤ 0.02% (w/w) |
| pH (5% Solution) | 11.0–12.0 |
三．Application scope and Usage：
Potassium carbonate is mainly used as an additive in instant noodles and carbonated beverages, playing a role in leavening and preservation.
四．Package and Storage：
Packaging: Inner liner is polyethylene plastic bag, outer cover is plastic woven bag. Net weight of each bag is 25 kilograms.
Storage and Transportation: It should be stored in a dry, ventilated and clean warehouse to prevent rain and moisture. It should be isolated from toxic substances for stacking. The shelf life of this product is twelve months.
