Sodium Methyl Paraben
■ Chemical Description
--Sodium Methyl p-Hydroxybenzoate, Sodium Methyl Paraben
■ CAS No. 5026-62-0
■ Molecular and Structural Formula C8H7O3Na
■ Characteristics
-- White hygroscopic crystalline powder;
-- Easily dissolved in water and alkaline;
■ Specification
No |
Tests |
Specification |
||
BP 2000 |
USP24/NF19 |
Q/SH 017-2006 |
||
1 |
Appearance |
white crystalline powder |
white crystalline powder |
white crystalline powder |
2 |
Identification |
passed |
passed |
/ |
3 |
Completeness |
/ |
passed |
/ |
4 |
Clarity and Color of Solution |
clear and transparent |
/ |
clear and transparent |
5 |
Assay(on dry base) % |
99.0-102.0 |
98.5-101.5 |
98.5-101.5 |
6 |
pH |
9.5-10.5 |
9.5-10.5 |
9.5-10.5 |
7 |
Sulfate |
≤300ppm |
≤0.12% |
≤0.12% |
8 |
Chloride ppm |
≤350 |
≤350 |
≤350 |
9 |
Organic Volatile Impurities |
/ |
Passed |
/ |
10 |
Water % |
≤5.0 |
≤5.0 |
≤5.0 |
11 |
Heavy Metals ppm |
≤10 |
/ |
≤10 |
■ Application
--A water-soluble antiseptics used in Pharmacy industry(Chinese herbal medicine/patent drug; medical instruments sterilization); Food industry(dairy products, pickles, beverage, fruit juice/jelly, confectionery); textile industry (dry goods, cotton yarn, chemical fibers), as well as antiseptics in cosmetics, feedstuffs, daily-chemicals;
■ Packaging and Storage
--Packed in 25, 50 kg fiber or plastic drum, inner lined with PE bags;
--Stored in dry place at room temperature;
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