化学式: C₆H₈O₇
化学式: C₆H₈O₇
化学式: C₆H₈O₇
用途
酸味剂，赋予食品强烈、清爽的酸味，改善食品的口感和风味。
保鲜剂，能抑制微生物的生长繁殖，延长食品的保质期。
缓冲剂，调节食品体系的 pH 值，保持食品的稳定性。
络合剂，与金属离子结合，防止金属离子对食品质量产生不良影响。
粒径
30-100mesh (0.150-0.600) mm, 12-40mesh (0.425-1.700) mm
规格
| Parameter | Standard |
| Characters | White or almost white, crystalline powder, colourless crystals or granules. Odorless, has a strongly acid taste. Very soluble in water, freely soluble in ethanol, very slightly soluble in diethyl ether. |
| Identification | Passes Test |
| Appearance of Solution | Passes Test |
| Assay | 99.5%-100.5% |
| Water | ≤0.5% |
| Readily Carbonisable Substances | Passes Test |
| Sulphated Ash (Residue on Ignition) | ≤0.05% |
| Sulfate | ≤50mg/kg |
| Oxalate | ≤50mg/kg |
| Chloride | ≤5mg/kg |
| Lead | ≤0.1mg/kg |
| Arsenic | ≤0.1mg/kg |
| Mercury | ≤0.1mg/kg |
| Aluminium | ≤0.2mg/kg |
| Heavy Metals | ≤5mg/kg |
| Bacterial Endotoxins | ＜0.5 IU/mg |
贮存
储存在密闭的原装容器中，存放在干燥、阴凉、通风良好的地方。
