規格:分析純化學純食品級
分子式:CaCO3
性狀:白色粉末或無色結晶，相對密度2.930，825℃分解為氧化鈣和二氧化碳，不溶于水，溶于酸。
|
指標名稱 |
規格 |
|
|
分析純AR |
化學純CP |
|
|
含量 |
≥99% |
≥98% |
|
澄清度試驗 |
合格 |
合格 |
|
鹽酸不溶物 |
≤0.01% |
≤0.03% |
|
堿度 |
0.25mmol/100g |
0.25mmol/100g |
|
氯化物 |
≤0.002% |
≤0.01% |
|
硫酸鹽 |
≤0.01% |
≤0.05% |
|
鈉 |
≤0.1% |
≤0.3% |
|
鉀 |
≤0.005% |
≤0.05% |
|
鎂 |
≤0.05% |
≤0.2% |
|
鍶 |
≤0.05% |
≤0.1% |
|
鋇 |
≤0.02% |
≤0.04% |
|
鐵 |
≤0.001% |
≤0.005% |
|
重金屬
|
≤0.001% |
≤0.005% |
