China High Quality Acetyl Salicylic Acid (Aspirin) Factory - Methyl Paraben｜99-76-3 – COLORKEM
China High Quality Acetyl Salicylic Acid (Aspirin) Factory - Methyl Paraben｜99-76-3 – COLORKEM Detail:
Products Description
Methyl paraben, also mEthyl Paraben, one of the parabens, is a preservative with the chemical formula CH3(C6H4(OH)COO). It is the methyl ester of p-hydroxybenzoic acid.
Nature: a white crystalline powder or crystalline. 115-118 ° C melting point, boiling point, 297-298 ° C. Soluble in ethanol, ethyl ether and acetone, micro-soluble in water, chloroform, carbon disulfide and petroleum ether. Minor special aroma and taste, slightly bitter flavor, Zhuo Ma.
Preparation: p-hydroxybenzoic acid and ethanol in the presence of sulfuric acid catalyst for esterification, esterification in the water after the completion of crystallization, then through a filter, in pickling products.Use: organic intermediates. For Preservatives, antimicrobial agent, used in food, cosmetics and pharmaceuticals. Also used for analysis of organic reagents. The goods on mold, yeast and bacteria have broad antibacterial effects, yeast and mold to the role of a strong, but especially for bacteria Gram-negative bacilli and the role of Lactobacillus poor. Food and medicine efficient preservation fungicides.
Specification
| ITEM | SPECIFICATION |
| Appearance | White crystalline powder |
| Purity | >= 99.0% |
| Melting point | 125- 128 |
| Residue on ignition | =< 0.1% |
| Acidity (mg/g) | 4.0- 7.0 |
| Related substances | =< 0.5% |
| Identification | Conform |
| Clarity of solution | Clear and transparent |
| Heavy metal (as Pb) | =< 10 ppm |
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Sticking to the perception of Creating products of top of the range and earning mates with people today from all over the world, we constantly put the desire of consumers in the first place for China High Quality Acetyl Salicylic Acid (Aspirin) Factory - Methyl Paraben｜99-76-3 – COLORKEM , The product will supply to all over the world, such as: Liverpool, Congo, Hyderabad, After years' creating and developing, with the advantages of trained qualified talents and rich marketing experience, outstanding achievements were gradually made. We get good reputation from the customers due to our good products quality and fine after-sale service. We sincerely wish to create a more prosperous and flourishing future together with all the friends home and abroad!
By Prima from Swedish - 2017.04.08 14:55
Wide range, good quality, reasonable prices and good service, advanced equipment, excellent talents and continuously strengthened technology forces，a nice business partner.
By Alberta from Honduras - 2017.08.16 13:39
