Sodium Sulfide Nonahydrate Analytical Reagent USP Grade Suppliers & Exporters, CAS 1313-84-4 |
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SDS MSDS of Sodium Sulfide Nonahydrate Analytical reagent USP Grade Manufacturers
Sodium Sulfide Nonahydrate
CAS Number 1313-84-4, Analytical reagent USP Grade & Pure
Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S-9H2O. Both the anhydrous and the hydrated salts are colorless solids. They are water-soluble emit hydrogen sulfide, which smells like rotten eggs. Commonly available grades have around 60% Na2S by weight, which means molecular formula of Na2S-3H2O. It is used in water treatment as an oxygen scavenger agent and also as a metals precipitant; in chemical photography for toning black and white photographs; in the textile industry as a bleaching agent, for desulfurising and as a dechlorinating agent; and in the leather trade for the sulfitisation of tanning extracts. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of rubber chemicals, sulfur dyes, pharmaceuticals, and other chemical compounds.
Sodium Sulfide Nonahydrate Analytical Reagent Grade Specifications
Na2S-9H2O --- Formula Weight 240.18
CAS Number 1313-84-4
NOTE: To enhance stability, storage below 10C is recommended.
REQUIREMENTS
Appearance: Crystals, colorless or with only a slight yellow color
Assay: 98.0% Na2S . 9H2O
TESTS
Meets all the tests for Specifications of Sodium Sulfide Nonahydrate Analytical Reagent Grade mongograph.
Sodium Sulfide USP Grade Specifications:
Na2S-9H2O --- 240.18
Sodium sulfide nonahydrate
Disodium sulfide nonahydrate CAS 1313-84-4
DEFINITION
Sodium Sulfide contains NLT 98.0% and NMT 103.0% of sodium sulfide (Na2S-9H2O).
IDENTIFICATION
A.
Conduct this test in a fume hood.
Sample: 100 mg.
Analysis: To the Sample add 10 mL of 3 N hydrochloric acid and cover the top of the container with filter paper saturated with a 0.2 M lead acetate solution.
Acceptance criteria: A brownish or silvery-black color forms on the paper.
ASSAY
Acceptance criteria: 98.0% to 103.0%
TESTS
Meets all the tests for Specifications of Sodium Sulfide USP mongograph.
Sodium Sulfide Nonahydrate Analytical Reagent USP Grade Manufacturers:
Muby Group
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