Medicinal grade benzoic acid sodium benzoate 25kg methyl salicylate citric acid

Medicinal grade benzoic acid Sodium benzoate 25kg Methyl salicylate Citric acid pharmaceutical grade benzoic acid Sodium benzoate 25kg Methyl salicylate BenjiasuanBenzoic Acid citrate This product contains C7H6O2 shall not be less than 99.
0%.

【Properties】This product is a white mercerized scale or needle-like crystal or crystalline powder
.
This product is easily soluble in ethanol, dissolved in boiling water, slightly soluble
in water.
Melting point The melting point of this product (general rule 0612) is 121~124.
5°C
.
【Identification】(1) Take about 0.
2g of this product, add 0.
4% sodium hydroxide solution 15ml, shake, filter, add 2 drops of iron trichloride test solution to the filtrate, that is, generate ochre precipitation
.
(2) The infrared light absorption pattern of this product should be consistent
with the control map (spectral set 233 figure).
【Check】The clarity and color of the ethanol solution Take 5.
0g of this product, dissolve and dilute it to 100ml with ethanol, check according to law (General 0901 and General 0902), the solution should be clear and colorless
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