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Sodium hydrosulfide

Sodium hydrosulfide
Sodium hydrosulfide
Chemical Name:
Sodium hydrosulfide
NAS2;anhydre;sodiummercaptan;SODIUM BISULFIDE;SODIUMBISULPHIDE;sodiummercaptide;SODIUMSULPHYDRATE;SODIUM SULFHYDRATE;hidrosulfurosodics;Sodium sulfohydrate
Molecular Formula:
Formula Weight:
MOL File:

Sodium hydrosulfide Properties

Melting point:
1,79 g/cm3
Flash point:
Water Solubility 
620 g/L (20 ºC)
Moisture Sensitive & Hygroscopic
Stable, but hygroscopic. Flammable solid. May ignite in air.
CAS DataBase Reference
16721-80-5(CAS DataBase Reference)
EPA Substance Registry System
Sodium sulfide (Na(SH))(16721-80-5)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  C,F
Risk Statements  31-34
Safety Statements  25-36/37/39-45-50A
RIDADR  2318
HazardClass  4.2
PackingGroup  II
Hazardous Substances Data 16721-80-5(Hazardous Substances Data)
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H228 Flammable solid Flammable solids Category 1
Category 2
P210, P240,P241, P280, P370+P378
H251 Self-heating; may catch fire Self-heating substances and mixtures Category 1 Danger
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H312 Harmful in contact with skin Acute toxicity,dermal Category 4 Warning P280,P302+P352, P312, P322, P363,P501
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Sodium hydrosulfide price More Price(5)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Alfa Aesar 087389 Sodium hydrogen sulfide, anhydrous 16721-80-5 2g $128 2018-11-16 Buy
Alfa Aesar 087389 Sodium hydrogen sulfide, anhydrous 16721-80-5 10g $565 2018-11-16 Buy
Strem Chemicals 93-1061 Sodium hydrogen sulfide, anhydrous 16721-80-5 5g $215 2018-11-13 Buy
Strem Chemicals 93-1061 Sodium hydrogen sulfide, anhydrous 16721-80-5 1g $59 2018-11-13 Buy
Strem Chemicals 93-1061 Sodium hydrogen sulfide, anhydrous 16721-80-5 25g $783 2018-11-13 Buy

Sodium hydrosulfide Chemical Properties,Uses,Production

Chemical Properties

white crystals or powder with a very unpleasant smell


the copper ore beneficiation,the sulfurous acid dyeing of manmade fibre,the synthesis of organic intermediates,the preparation of auxiliary agent of sulfur dyes,and waste water treatment; raw material to produce ammonium sulphate and ethanethiol

General Description

Sodium hydrosulfide is a colorless to light yellow crystalline solid or fused mass. Sodium hydrosulfide is corrosive to skin and metal. Used in paper pulping, manufacturing dyes, and dehairing hides.

Air & Water Reactions

Soluble in water. The solution slowly evolves hydrogen sulfide gas. Crystals hydrolyze in moist air to sodium hydroxide and sodium sulfide. Liable to spontaneous heating in moist air.

Reactivity Profile

A chemical base. Reacts with acids to release flammable and toxic gaseous hydrogen sulfide. As long as the solution is kept strongly alkaline, pH > 10, there is very little release of H2S. At pH = 7, the percent concentration of H2S released is close to 80%.


Contact with acids causes evolution of toxic gases.

Health Hazard

Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.

Fire Hazard

Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.

Safety Profile

Poison by intraperitoneal and subcutaneous routes. Mutation data reported. A corrosive irritant to skin, eyes, and mucous membranes. Flammable when exposed to heat or flame. Spontaneous combustion. Reacts violently with Qazonium salts. Readily yields HS. When heated to decomposition it emits toxic fumes of SO, and NazO. See also SULFIDES and MERCAPTANS.

Sodium hydrosulfide Preparation Products And Raw materials

Raw materials

Preparation Products

Sodium hydrosulfide Suppliers

Global( 150)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 CHINA 3217 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20786 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32651 55
Haihang Industry Co.,Ltd
+86 531 8582 1093 CHINA 4525 58
career henan chemical co
+86-371-86658258 CHINA 19990 58
Sino Chem Mongolia Alliance Ltd. +86-131-10056998
+86-022-23686656 China 10 60
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30291 84
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
86 (10) 60270825 China 1438 62

View Lastest Price from Sodium hydrosulfide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-15 Sodium hydrosulfide
US $1.00 / KG 1G 98% 100KG career henan chemical co
2018-07-23 Sodium hydrosulfide
US $530.00-500.00 / KG 1000KG 70% 1000MT/month or Customized career henan chemical co

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