Sodium Sulfide Pure ACS Reagent USP NF Grade Manufacturers

Anmol Chemicals is the pioneer manufacturers of Sodium Sulfide, Pharmaceutical Excipients Food & Flavor chemicals in India. We offer Halal and Kosher Sodium Sulfide made in an ISO9001, ISO22000 (FSSC22000) cGMP and GLP certified facility. Our group has several manufacturing facilities spread across the world, supported by toll manufacturers and representatives in UAE, Europe, Africa, USA, China and has several associated manufacturing facilities spread across India. All the Information on Physics, Chemistry, Applications, Uses and Technology on Manufacture of Sodium Sulfide is in these pages.

The units have one or more of the certifications like FDA GMP, ISO 9001, ISO 22000, HACCP, REACH, Kosher & Halal

Sodium Sulfide Nonahydrate Commercial Pure and USP NF and ACS Reagent Grade Manufacturers

Sodium Sulfide USP Grade
Na2S-9H2O 240.18
Sodium sulfide nonahydrate.
Disodium sulfide nonahydrate CAS Number 1313-84-4

Sodium Sulfide contains not less than 98.0 percent and not more than 103.0 percent of Na2S.9H2O.

Identification: [NOTE: Conduct this test in a fume hood.] Transfer about 100 mg of Sodium Sulfide, to a suitable container, 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: a brownish or silvery-black color forms on the paper.
Limit of iron: Dissolve about 5.0 g in 100 mL of water: the solution is clear and colorless.
Limit of sulfite and thiosulfate: Dissolve 3.0 g in 200.0 mL of filtered and degassed water. Add 100.0 mL of 0.2 N zinc sulfate, mix, and allow to stand for 30 minutes. Filter, add 1 mL of starch, and titrate 100.0 mL of the filtrate with 0.01 N iodine: not more than 3.0 mL is required.
Assay: Transfer about 275 mg of Sodium Sulfide, accurately weighed, to a 250-mL beaker, dissolve in 30 mL of filtered and degassed water, and mix. Add 50.0 mL of 0.1 N iodine while mixing, add 2 mL of hydrochloric acid, and allow to stand for 15 minutes in a dark place. Titrate with 0.1 N sodium thiosulfate VS to a pale yellow color. Add 5 mL of starch and titrate with 0.1 N sodium thiosulfate to a clear endpoint. Perform a blank determination, and make any necessary correction. Each mL of 0.1 N sodium thiosulfate is equivalent to 12.01 mg of Na2S-9H2O.

Sodium Sulfide Nonahydrate ACS Reagent Grade
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

MAXIMUM ALLOWABLE
Ammonium (NH4): 0.005%
Sulfite and thiosulfate (as SO4): 0.1%
Iron: Passes test.

For Original Monographs of IP Indian Pharmacopoeia BP British Pharmacopoeia USP US Pharmacopoeia FCC Food Grade product, please check with the respective web-pages or books.

Sodium Sulfide manufacturers at:

Anmol Chemicals
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610, 23723564 - FAX: 91-22-23728264

Exports to USA, Canada, UAE, Dubai, South Africa, Tanzania, Kenya, Nigeria, Egypt, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Europe Netherlands, Italy, Spain, Germany, Portugal, France, Malaysia, Indonesia, Thailand, Korea, Japan, etc.