Sodium Sulfide Nonahydrate Analytical reagent USP Grade Suppliers & Manufacturers |
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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.
Appearance: Crystals, colorless or with only a slight yellow color
Assay: 98.0% Na2S . 9H2O
MAXIMUM ALLOWABLE
Ammonium (NH4): 0.005%
Sulfite and thiosulfate (as SO4): 0.1%
Iron: Passes test.
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%
Sample solution: 50 mg/mL in water.
Acceptance criteria: The solution is clear and colorless.
Limit of Sulfite and Thiosulfate:
Sample solution: Dissolve 3.0 g of Sodium Sulfide in 200.0 mL of filtered and degassed water. Add 100.0 mL of 0.2 N zinc sulfate, and allow to stand for 30 min. Filter, and add 1 mL of starch.
Titrimetric system
Mode: Direct titration
Titrant: 0.01 N iodine
Endpoint detection: Visual
Analysis: Titrate 100.0 mL of the filtrate from the Sample solution with Titrant.
Acceptance criteria: NMT 3.0 mL of Titrant is required.
Sodium Sulfide Nonahydrate Analytical reagent USP Grade Manufacturers:
Muby Chem Ltd.
Toll manufacturing & Warehouse at Houston & Midland, Texas, USA and India
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Call 1-844-682-9243
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Suppliers Manufacturers Exporters Importers between USA Canada UAE Europe Russia South Africa Tanzania Kenya Uganda Egypt Nigeria Turkey Mexico Brazil Argentina Chile Dubai China India etc.
Copyright and Usual Disclaimer is Applicable.
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