ChemicalBook > CAS DataBase List > Sodium hydrosulfide

Sodium hydrosulfide

Product Name
Sodium hydrosulfide
CAS No.
16721-80-5
Chemical Name
Sodium hydrosulfide
Synonyms
SODIUM HYDROGEN SULFIDE;SODIUM HYDROGEN SULPHIDE;NAS2;SODIUM BISULFIDE;SODIUM SULFHYDRATE;sodiumhydrosulphide;anhydre;NAHS,XH2O;NEROL 106-25-2;sulfanylsodium
CBNumber
CB8448020
Molecular Formula
HNaS
Formula Weight
56.06
MOL File
16721-80-5.mol
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Sodium hydrosulfide Property

Melting point:
55°C
Density 
1,79 g/cm3
RTECS 
WE1900000
Flash point:
90°C
solubility 
soluble in H2O, EtOh, ethyl ether
form 
Solid
color 
Off-white
Odor
Rotten eggs odor
Water Solubility 
620 g/L (20 ºC)
Sensitive 
Moisture Sensitive & Hygroscopic
Stability:
Stable, but hygroscopic. Flammable solid. May ignite in air.
CAS DataBase Reference
16721-80-5(CAS DataBase Reference)
EPA Substance Registry System
Sodium hydrosulfide (16721-80-5)
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Safety

Hazard Codes 
C,F
Risk Statements 
31-34
Safety Statements 
25-36/37/39-45-50A
RIDADR 
2318
TSCA 
Yes
HazardClass 
4.2
PackingGroup 
II
Hazardous Substances Data
16721-80-5(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Hazard statements

H228Flammable solid

H251Self-heating; may catch fire

H302Harmful if swallowed

H312Harmful in contact with skin

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

H332Harmful if inhaled

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Alfa Aesar
Product number
087389
Product name
Sodium hydrogen sulfide, anhydrous
Packaging
2g
Price
$186
Updated
2024/03/01
Alfa Aesar
Product number
087389
Product name
Sodium hydrogen sulfide, anhydrous
Packaging
10g
Price
$808
Updated
2024/03/01
Strem Chemicals
Product number
93-1061
Product name
Sodium hydrogen sulfide, anhydrous
Packaging
1g
Price
$68
Updated
2024/03/01
Strem Chemicals
Product number
93-1061
Product name
Sodium hydrogen sulfide, anhydrous
Packaging
5g
Price
$247
Updated
2024/03/01
Strem Chemicals
Product number
93-1061
Product name
Sodium hydrogen sulfide, anhydrous
Packaging
25g
Price
$896
Updated
2024/03/01
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Sodium hydrosulfide Chemical Properties,Usage,Production

Chemical Properties

white crystals or powder with a very unpleasant smell

Uses

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

Uses

In paper pulping, in dyestuffs processing, in rayon and cellophane desulfurizing, in unhairing hides and as a bleaching reagent Sodium hydrogen sulfide is used in cloth, paper, pulp and dyestuff industries. It acts as a floating agent in copper mining as well as to remove hairs from hides in leather industries. It is also used as an intermediate in synthetic chemistry. It is utilized as a raw material in the production of 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%.

Hazard

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.

Flammability and Explosibility

Non flammable

Industrial uses

Sodium hydrosulfide (NaHS) is stable only in solution. When in contact with oxygen (air), it slowly oxidizes. If a solution of NaHS is heated, it is converted into Na2S and H2S.
Sodium hydrosulfide can be used as a replacement for Na2S·9H2O during sulfidization of oxide minerals. Sodium hydrosulfide in solution has a much lower alkalinity than Na2S.
Although the performance of NaHS is not the same as for Na2S, it is used because of its cost-effectiveness.

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

Hydrogen Sulfide Sodium sulfide Sodium hydroxide

Preparation Products

Fluorescein isothiocyanate isomer I 2,4-DIAMINO-6-MERCAPTOPYRIMIDINE 4-(tert-Butyl)benzyl mercaptan 2-Amino-3,5-dinitrothiophene 3-AMINO-5-BROMO-BENZOIC ACID 2-(3-PYRIDYL)-1,3-THIAZOLE-4-CARBOXYLIC ACID 5-Aminofluorescein 4-Chloro-3-(trifluoromethyl)benzaldehyde 3-Bromo-5-nitrobenzoic acid 2-QUINOXALINETHIOL Dilauryl thiodipropionate PENTACHLOROTHIOPHENOL 4-THIOURACIL 5-CARBOXY-1-PENTANETHIOL METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE Benzene,1-(1,1-dimethylethyl)-4-(methylthio) Rubber peptizer BENZENETHIONOSULFONIC ACID, SODIUM SALT 4,5-Diaminopyrimidine THIOPHENE-2-THIOCARBOXAMIDE 2-Fluorophenylacetone 3-Amino-5-nitrobenzoic acid 3-BROMO-5-IODOBENZOIC ACID 6-Thioguanine Thioglycolic acid 1-Propanethiol 1-Mercaptooctane 12-MERCAPTODODECANOIC ACID METHYL MERCAPTAN Pyridaben W.P. 3-Amino-4-methoxybenzanilide 4-AMINO-6-METHYLPYRIMIDINE-2-THIOL Thiodiglycolic acid Pyridaben Ethanethiol Phorate 2-Mercaptoethanol 3-Mercapto-2-butanone Furfuryl mercaptan Difurfuryldisulfide
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View Lastest Price from Sodium hydrosulfide manufacturers

Hebei Mujin Biotechnology Co.,Ltd
Product
Sodium hydrosulfide 16721-80-5
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-09-21
Hebei Jingbo New Material Technology Co., Ltd
Product
Sodium hydrosulfide 16721-80-5
Price
US $0.00-0.00/TON
Min. Order
1TON
Purity
70%
Supply Ability
1000000
Release date
2023-11-12
Hebei Yanxi Chemical Co., Ltd.
Product
Sodium hydrosulfide 16721-80-5
Price
US $20.00-3.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-10-11

16721-80-5, Sodium hydrosulfideRelated Search:

Sodium bicarbonate Trisodium phosphate Sodium chloride Sodium hydride Sodium sulfate Diclofenac sodium Sodium benzoate Sodium hydroxide Sodium acetate Sodium chlorite Potassium thiocyanate Sodium dimethyldithiocarbamate Sodium borohydride 1-PHENYL-1H-TETRAZOLE-5-THIOL SODIUM SALT Sodium thiocyanate Sodium diethyldithiocarbamate sodium trithiocarbonate Sodium sulfide

  • hidrosulfurosodics
  • hydrogenosulfuredesodium(french)
  • hydrogenosulfuredesodium,anhydre
  • hydrogenosulfuredesodium,dihydrate
  • hydrogensodiumsulfide
  • sodiumhydrogensulfide(nahs)
  • sodiumhydrosulphide
  • sodiummercaptan
  • sodiummercaptide
  • sodiumsulfide(na(hs))
  • sodiumsulfide(na(sh))
  • SODIUM HYDROSULFIDE
  • SODIUM HYDROGEN SULPHIDE
  • sodiumhydrosulfide(na(hs))
  • sodiumhydrosulfide,anhydrous
  • sodiumhydrosulfide,dihydrate
  • sodiumhydrosulfide,solid
  • sodiumhydrosulfide,solid,withlessthan25%waterofcrystallization
  • sodiumhydrosulfide,solution
  • sodiumhydrosulfide,withnotlessthan25%waterofcrystallization
  • SODIUM HYDROGEN SULFIDE
  • SODIUM BISULFIDE
  • SODIUM SULFHYDRATE
  • Sodium sulfohydrate
  • SODIUM HYDROSULPHID
  • SODIUM HYDRO SULPHIDE SOLID 70% MIN
  • NATRIUMHYDROGENSULFID MONOHYDRAT
  • SodiumHydrosulfide30%
  • SODIUM HYDROSULFIDE 30%
  • Natriumhydrogensulfid
  • SODIUMHYDROSULFIDE,45%SOLUTION
  • SODIUMBISULPHIDE
  • SODIUMSULPHYDRATE
  • Sodium hydrogen sulphide anhydrous
  • Sodium sulfhydrate: (Sodium hydrosulfide)
  • sodium hydrosulfide (non-flammable solid)
  • sodium hydrosulfide, solid, >= 25% water
  • Sodiumhydrogensulfide,anhydrous
  • NAS2
  • hydrogen sulfur sodiuM
  • sodiuMhydr sulfide, anhydrous
  • anhydre
  • NAHS,XH2O
  • Sodium Hydrosulfide,>70%
  • 70% Sodium hydrosulfide
  • SODIUM HYDROSULPHIDE 30% W/V Extra Pure
  • NEROL 106-25-2
  • Sodium hydride sulfide
  • sulfanylsodium
  • Sodium hydrosulfide Sodium bisulfide
  • 16721-80-5
  • NaHS2H2O
  • NaHSmaycontainothersulfidephases
  • NaSHxH2O
  • NaHS
  • hydrogen sulfide
  • inorganic chemical raw material
  • inorganic salt