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citric acid monohydrate
- Information
|
指标项目 Items |
指标值 Standard Values |
实测值 Actual values |
|
外观 Outward |
无色或白色晶体 Colorless or white crystals |
白色晶体 white crystals |
|
色泽澄清度 Color clarity |
20%水溶液澄清 20 % aqueous clarification |
符合试验 Comply with the test |
|
主含量 Main content |
99.5-100.5 |
99.7% |
|
水份含量 |
≤9.0% |
8.68% |
|
碳酸灰份 Carbonic ash |
≤0.05% |
0.01% |
|
透光率 transmittance |
≥95.5% |
99.2% |
|
硫酸盐 sulfate |
≤20ppm |
＜20 ppm |
|
氯化物 chloride |
≤5 ppm |
＜5 ppm |
|
钙盐 Calcium salt |
≤20ppm |
＜20 ppm |
|
重金属 heavy metal |
≤1 ppm |
＜1 ppm |
|
铁(Ca) |
≤1 ppm |
＜1 ppm |
|
草酸盐 oxalate |
≤20 ppm |
＜20 ppm |
|
易碳化物 readily carbonizable substance |
≤1.0 |
0.42 |
|
砷(As) |
≤1.0 ppm |
＜1.0 ppm |
|
铅(Bb) |
≤0.5 ppm |
＜0.5 ppm |
|
水不溶物 |
时间不超过1分钟，基本不变色，目视可见杂质不超过3个。 No more than 1 minute, basically no discoloration, no more than 3 visible impurities. |
符合试验 Comply with the test |
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