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产品名称:羟甲基甘氨酸钠 
Cas No.:70161-44-3 
分子式:HOCH2NHCH2COONa 
分子量:127.07 
Physical properties and quality indicators: 1. Appearance: Colorless to light yellow clear liquid 2. Odor: Characteristically mild 3. Nitrogen: 5.4~6.0% 4. Specific Gravity(25℃) : 1.27~1.30 5. pH : 10.0~12.0 6. Total Solids: 49~52% 7. As: 0.0003% max. 8. Pb: 0.001% max. 9. Molecular weight: 127.07
Application: Hydroxymethylglycine sodium is an efficient and broad-spectrum preservative, which can effectively inhibit Gram-positive bacteria, Gram-negative bacteria, yeast and mold. This product is 50% hydroxymethylglycine sodium water solution. It can be used in shampoo, perm, hair dye, conditioner, soap, shampoo and other basic cosmetics and detergents. Generally, the dosage is 0.2-0.6%. Features: the product is still very stable in the solution with pH value of 3-12, so it can be used for strong alkaline cosmetics and washing products. 
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