ChemicalBook CAS DataBase List 21109-95-5

21109-95-5

Name	BARIUM SULFIDE
CAS	21109-95-5
EINECS(EC#)	256-814-3
Molecular Formula	BaS
MDL Number	MFCD00014192
Molecular Weight	169.39
MOL File	21109-95-5.mol

Chemical Properties

Appearance

colourless crystals, or white to grey-brown powder,

Melting point

1200°C

density

4.25 g/mL at 15 °C(lit.)

form

Powder

color

Pale gray to yellow

Specific Gravity

4.25

Stability:

Stable, but decomposes on heating. Incompatible with acids, oxidizing agents, water.

Water Solubility

Soluble in water but insoluble in alcohol.

Specific Heat Capacity

Cp(crystal):0.289906J/(g·K),at 25℃

Crystal Structure

NaCl type

Sensitive

Moisture Sensitive

crystal system

Cube

Merck

14,995

Space group

Fm3m

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.6388	0.6388	0.6388	90	90	90	0.2607

Cosmetics Ingredients Functions

DEPILATORY

InChI

1S/Ba.S

InChIKey

OTMNKCRTGBGNPN-UHFFFAOYSA-N

SMILES

S=[Ba]

Safety Data

Hazard Codes	Xn,N,Xi
Risk Statements	R20/22:Harmful by inhalation and if swallowed . R31:Contact with acids liberates toxic gas. R50:Very Toxic to aquatic organisms. R36/37/38:Irritating to eyes, respiratory system and skin . less more
Safety Statements	S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) . S61:Avoid release to the environment. Refer to special instructions safety data sheet . less more
RIDADR	UN 2813 4.3/PG 2
WGK Germany	2
TSCA	Yes
REACH Registrations	Active
HazardClass	4.3
PackingGroup	III
HS Code	2830908500
Storage Class	4.3 - Hazardous materials which set free flammable gases upon contact with water
Hazard Classifications	Acute Tox. 3 Oral Acute Tox. 4 Inhalation Aquatic Acute 1 Met. Corr. 1 Skin Corr. 1A
Safety Profile	A poison. Flammable by spontaneous chemical reaction, air, moisture, or acid fumes may cause it to ignite. For explosion and disaster hazards, see SULFIDES. To fight fire, use CO2, dry chemical. Reacts violently with phosphorus(V) oxide. Mxtures with lead dioxide, potassium chlorate, or potassium nitrite explode when heated. Incompatible with Cl2O, Ca(NO3)2, r(NO3)2, Ca(ClO3)2, Sr(ClO3)2, (ClO3)2. See also BARIUM COMPOUNDS (soluble) and SULFIDES. less more

Raw materials And Preparation Products

Hazard Information

Chemical Properties

colourless crystals, or white to grey-brown powder,

Physical properties

Colorless crystalline solid; density 4.25 g/cm³; refractive index 2.155; melts at 1,200°C; soluble in water (decomposes); insoluble in alcohol.

Occurrence

Barium 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.

Uses

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

Uses

Barium 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.

Preparation

Barium 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.

Production Methods

Barium sulfide is grayish-white solid, formed by heating barium sulfate and carbon, reactive with H2O to form barium hydrosulfide, Ba(SH)2, solution. The latter is also made by saturation of barium hydroxide solution with H2S. Barium polysulfides are formed by boiling barium hydrosulfide with sulfur.

General Description

Barium 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.

Hazard

Highly toxic by ingestion (see Barium).

Flammability and Explosibility

Nonflammable

reaction suitability

reagent type: catalyst
core: barium

Material Safety Data Sheet(MSDS)

Questions And Answer

Well-known Reagent Company Product Information

Supplier

Chengdu Huachun Technology Co., Ltd

Telephone400-1166-196 15982826727

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Hubei xin embellish DE chemical co., LTD

Telephone027-1700000 15871472056

Websitehttps://www.chemicalbook.com/ShowSupplierProductsList30695/0_EN.htm

Shandong Duoju Chemical Co., Ltd

Telephone0531-88779566 13105315100

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WUHAN GEEYESCHEM CHEMICAL CO., LTD.

Telephone 15927657268

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Meryer (Shanghai) Chemical Technology Co., Ltd.

Telephone4006356688 18621169109

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Alfa Aesar

Telephone400-6106006

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Energy Chemical

Telephone 400-0056266

Websitehttp://www.energy-chemical.com

Shanghai Hanhong Scientific Co.,Ltd.

Telephone021-54306202 13764082696

Websitehttps://www.hanhongsci.com

Shandong Xiya Chemical Co., Ltd

Telephone13355009207 13355009207

Websitehttp://www.xiyashiji.com

Sichuan Kulinan Technology Co., Ltd

Telephone400-1166-196 18981987031

Websitehttp://www.hx-r.com/

Sinopharm Chemical Reagent Co,Ltd.

Telephone86-21-63210123

Websitehttp://www.reagent.com.cn

Spectrum Chemical Manufacturing Corp.

Telephone021-021-021-67601398-809-809-809 15221380277

Websitehttps://www.spectrumchemical.com/OA_HTML/index.jsp?minisite=10020&respid=22372&language=US

Chengdu Ai Keda Chemical Technology Co., Ltd.

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9ding chemical ( Shanghai) Limited

Telephone4009209199

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Shanghai Aladdin Bio-Chem Technology Co.,LTD

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Shanghai JONLN Reagent Co., Ltd.

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Huainan Kedi Chemical Factory

Telephone0554-2106669

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Chengdu HuaXia Chemical Reagent Co. Ltd

Telephone400-1166-196 13458535857

Websitehttp://www.hx-r.com

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21109-95-5

Chemical Properties

Safety Data

Raw materials And Preparation Products

Raw materials

Preparation Products

Hazard Information

Chemical Properties

Physical properties

Occurrence

Uses

Uses

Preparation

Production Methods

General Description

Hazard

Flammability and Explosibility

reaction suitability

Material Safety Data Sheet(MSDS)

Questions And Answer

Description

References

Well-known Reagent Company Product Information

Supplier

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