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[Add]：
Room 39 Road No97 Nanyang Road Zhengzhou City Henan Province .China
[Tel]：
0086-371-63737206
[Fax]：
0086-371-63737012
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Products：monosodium glutamate 谷氨酸钠 |
| Specification |
Specification of monosodium glutamate
谷氨酸钠
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Item |
Limit |
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Appearance |
White or colorless crystal |
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Assay |
99.0% to 100% |
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state of solution
(transmittance) |
Clear and colorless not less than 98.0%
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chloride (cl) |
Not more than 0.039% |
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Ammonium(NH4) |
Not more than0.02% |
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Sulfate(so4) |
not more than 0.028% |
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Iron (Fe) |
Not more than 5PPM |
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Heavy metals (pb) |
Not more than 10PPM |
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Arsenic (ASO3) |
Not more than 0.5PPM |
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Other amino acids |
Conforms |
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Loss on drying |
Not more than 0.30% |
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specific rotation (a)20 |
+24.8 ～+25.3 |
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PH |
6.7～7.2 | |
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