Customization: | Available |
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Appearance: | White Crystalline Powder |
Other Names: | Methyl 4-Hydroxybenzoate |
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ITEM | STANDARD |
Appearance | White crystalline powder |
Purity (on dry base)% | 98.0-104.0 |
PH value(0.1%water liquor) | 9.5-10.5 |
Sulfate(ppm) | =<300 |
Chlorides(ppm) | =<350 |
Loss on drying % | =<0.50 |
Organic volatile impurities | Meets BP2000/usp24 STANDARD |
Completeness of solution | Meets Bp2000/usp24 STANDARD |
Heavy metals (Pb)ppm | =<10.0 |
Apprearance of solution | Clear and transparent |
ITEM | STANDARD |
Appearance | White crystalline powder |
Purity (on dry base)% | 99-100.5 |
Melting point °C | 69-72 |
Sulphated ash % | =<0.05 |
Acidity (mlNaOH0.1M) | =<0.1 |
Loss on drying % | =<0.5 |
Residue % | =<0.10 |
Arsenic (ppm) | =<1.0 |
Heavy metals (Pb)ppm | =<10 |
Mercury (mg/kg) | <1 |
lead (mg/kg) | <5 |
Clarity and color of solution | Clear and transparent |