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specification standards
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Item |
Specification |
Results |
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Appearance |
white crystalline powder or granular |
passed the test |
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Assay |
99% min |
99.10% |
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loss on drying |
<5.0 |
4.70% |
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F r e e A c i d i t y b a s e d |
<0.30% |
<0.30% |
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onCH3CH2COOH |
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Free alkalinity based on |
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NaOH |
<0.30% |
<0.30% |
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Heavy metals |
<0.001% |
<0.001% |
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Arsenic |
<0.0002% |
<0.0002% |
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Fluoride |
<0.003% |
<0.003% |
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Magnesium |
<0.4% |
<0.4% |
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PH value of aqueous solution |
7-9 |
8.5 |
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Storge and Transportation |
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