Barium sulfide

HCID 6857597
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Basic information

CAS
21109-95-5
Standard SMILES
[Ba+2].[S-2]
InChIKey
CJDPJFRMHVXWPT-UHFFFAOYSA-N
Molecular formula
BaS
Average molar mass
169.39 g/mol
Monoisotopic mass
169.8773182

Overview

Barium sulfide is a sulfide salt and a barium salt.

Names & identifiers

Preferred name
Barium sulfide
IUPAC
barium(2+) sulfide
English name
BARIUM SULFIDE
Molecular formula
BaHS
Molecular weight
170.4

Names & synonyms

Barium sulfideBarium sulphideBariumsulfidBARIUM MONOSULFIDETV3U2GEW4HCHEBI:32590DTXSID30892157RefChem:916717barium(2+) ion sulfanediideDTXCID701324628244-214-421109-95-5
Show more names
BaSBlack ashyellowpowderEinecs 244-214-4Sulfurated barytabariumsulfide(bas)
Barium sulfide (bas)barium(2+);sulfideBarium sulfide, blackEINECS 256-814-3EINECS 232-376-9barium hydrogen sulfideUNII-PET6ZVZ3MK[BaS]

Database identifiers

CAS
21109-95-5、50864-67-0、8011-62-9
PubChem CID
6857597
DTXSID
DTXSID30892157
ChEBI
CHEBI:32590
UNII
TV3U2GEW4H
EC Number
244-214-4

Properties

Computed structural properties

Topological polar surface area
1 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
1
Rotatable bonds
0
Heavy atoms
2

Experimental & physicochemical properties

Chemical ClassesMetals -> Metals, Inorganic Compounds
CosmeticsDepilatory
SpringerMaterials Propertiesphonon wavenumber
Physical Description · 2 items

Dry Powder

Water-soluble, gray powder; [Hawley] Smells like rotten eggs; Hydrolyzes in water; [MSDSonline]

Physicochemical properties

Melting point
1200 °C · 1200°C
Density
4.25 g/mL · 4.25 g/mL at 15 °C(lit.)
form
Powder
Specific Gravity
4.25 · 4.25
color
Pale gray to yellow
Water Solubility
Soluble in water but insoluble in alcohol.

Safety & regulation

GHS classification

GHS Classification · 6 items

Warning

H302: Harmful if swallowed [Warning Acute toxicity, oral]

P261, P264, P270, P271, P273, P301+P317, P304+P340, P317, P330, P391, and P501 (click each P-code to see the statement)

Danger

H290 (82.7%): May be corrosive to metals [Warning Corrosive to Metals]

P234, P260, P261, P264, P270, P271, P273, P280, P301+P316, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P363, P390, P391, P405, P406, and P501 (click each P-code to see the statement)

Hazard information

Regulatory Information · 3 items

Chemical: Barium sulfide (BaS)

Barium sulfide (BaS) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Barium sulfide (BaS) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 28-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13592

Other Safety InformationIMAP assessments - Soluble Sulfide Salts: Human health tier II assessment
Hazards SummaryHarmful by ingestion and inhalation; [ESIS] Reacts with acid to form hydrogen sulfide; [www.ci.tucson.az.us/arthazards/medium.html] Contact with acid liberates toxic gas; [MSDSonline] SeeBarium.
Hazard Classes and Categories · 4 items

Met. Corr. 1 (82.7%)

Hazardous to the aquatic environment (acute) - category 1

Acute toxicity (Oral) - Category 4

Acute Tox. 4 *

Safety & protection

Exposure Control and Personal Protection0.5 [mg/m3], as Ba, inhalable fraction (soluble compds)[German Research Foundation (DFG)]
Minimum Risk LevelIntermediate Oral: 0.2 mg/kg/day (L134) Chronic Oral: 0.2 mg/kg/day (L134)
Threshold Limit Values (TLV)0.5 [mg/m3], as Ba
Permissible Exposure Limit (PEL)0.5 [mg/m3], as Ba
Immediately Dangerous to Life or Health (IDLH)50.0 [mg/m3], as Ba

Toxicology

TreatmentIntravenous infusion of potassium often relieves many of the symptoms of barium toxicity. (L214)
Health Effects · 1 item

The health effects of the different barium compounds depend on how well the compound dissolves in water or the stomach contents. At low doses, barium acts as a muscle stimulant, while higher doses affect the nervous system, causing cardiac irregularities, tremors, weakness, anxiety, dyspnea, paralysisand possibly death. Barium may also cause gastrointestinal disturbances, damage the kidneys and cause decreases in body weight. (L214)

Adverse EffectsNephrotoxin - The chemical is potentially toxic to the kidneys in the occupational setting.
Exposure RoutesOral (L214) ; inhalation (L214)
Toxicity Summary · 1 item

Barium is a competitive potassium channel antagonist that blocks the passive efflux of intracellular potassium, resulting in a shift of potassium from extracellular to intracellular compartments. The intracellular translocation of potassium results in a decreased resting membrane potential, making the muscle fibers electrically unexcitable and causing paralysis. Some of these barium's effects may also be due to barium induced neuromuscular blockade and membrane depolarization. (L214)

Signs and Symptoms · 1 item

Ingesting excess barium may cause vomiting, abdominal cramps, diarrhea, difficulties in breathing, increased or decreased blood pressure, numbness around the face, and muscle weakness. High levels may result in changes in heart rhythm or paralysis and possibly death. (L214)

Safety data

PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
2
tsca
TSCA listed
ridadr
UN 2813 4.3/PG 2
hs_code
2830908500
risk_code
20/22-31-50-36/37/38-41-35

Chemistry & industry

Pharmacology

Metabolism/Metabolites · 1 item

Barium compounds are absorbed via ingestion and inhalation, the extent of which depends on the individual compound. In the body, the majority of the barium is found in the bone, while small amounts exists in the muscle, adipose, skin, and connective tissue. Barium is not metabolized in the body, but it may be transported or incorporated into complexes or tissues. Barium is excreted in the urine and faeces. (L214)

Uses & manufacturing

Uses · 4 items

Used to remove hair and to make luminous paints, lithopone, and vulcanized rubber; [Merck Index] Used for dehiding, flame retarding, and as a paint additive; [Hawley] Used in metallic patinas; [www.ci.tucson.az.us/arthazards/medium.html]

Painting (Pigments, Binders, and Biocides) [Category: Paint]

Applying metallic patinas [Category: Hobbies]

Barium sulfide is the precursor to barium carbonate and the pigment lithopone. (L211)

U.S. Production2023: 35,380,000 lb
Industry UsesIntermediate
Use ClassificationCosmetics -> Depilatory
General Manufacturing Information · 2 items

All Other Basic Inorganic Chemical Manufacturing

Barium sulfide (BaS): ACTIVE

Applications · 5 items

DescriptionBarium sulfide (BaS) belongs to the inorganic compound that possesses different characters, which allows it to be applied in a variety of fields. It is primarily used as an important precursor to produce other barium compounds, such as barium carbonate as well as the pigment lithopone (ZnS•BaSO4). Similar to other chalcogenides of the alkaline earth metals, barium sulfide can be employed as a short short wavelength emitter for electronic displays and used in electronics, paint pigments, dehairing hides, flame retardant, luminous paints, and producing pure hydrogen sulfide. Besides, barium sulfide is effective to deviate X-rays and helps to give clearly image of the soft tissue.

OccurrenceBarium sulfide occurs in the form of black ash, which is a gray to black impure product obtained from high temperature carbonaceous reduction of barite. It is the starting material in the manufacture of most barium compounds including barium chloride and barium carbonate. It is used in luminous paints; for dehairing hides; as a flame retardant; and for generating H2S.

UsesBarium sulfide has different characters, so it is used in a variety of ways, such as in electronics, paint pigments, dehairing hides, flame retardant, luminous paints, and generating pure hydrogen sulfide. Barium sulfide can deviate X-rays and helps to give clearly image of the soft tissue. Barium sulfide is a precursor to other barium compounds and also used as a short wavelength emitters for electronic displays.

UsesAs depilatory; in luminous paints; manufacture of lithopone; vulcanizing rubber, generating H2S.

General DescriptionBarium sulfide (BaS) is an inorganic compound that is used as a precursor in the production of barium compounds. These compounds can be used in a variety of applications, such as ceramics, luminous paints, additives, and flame retardants.

Preparation methods · 1 item

PreparationBarium sulfide can be prepared by the direct reaction of the elements, calcined in an inert atmosphere, at a 1:1.05 molecular ratio: Ba＋S＋heat→BaS Barium sulfide is prepared commercially by heating barite (BaO) with coal or petroleum coke in a rotary kiln at 1000°C to 1250°C in an oxygen-free atmosphere. The product, black ash, is a gray or black powder containing carbonaceous impurities and unreacted barite. Barium sulfide is separated from impurities by extraction with hot water and filtration. Barium sulfide may also be made by high temperature reduction of barium sulfate with methane.

Upstream & downstream products

Upstream raw materials

Suppliers84 total

国药集团化学试剂有限公司86-21-63210123 · [email protected]
阿诺西（上海）生物技术有限公司400-1107768 15058188853 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
山东瑞博恩新材料科技有限公司15064961989 · [email protected]
Hebei Chuanghai Biotechnology Co., Ltd+86-17732866630 · [email protected]

Related reactions

1 records
New reaction record

Compound notes

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