ChemicalBook CAS DataBase List 1633-05-2

1633-05-2

Name	Strontium carbonate
CAS	1633-05-2
EINECS(EC#)	216-643-7
Molecular Formula	CO3Sr
MDL Number	MFCD00011250
Molecular Weight	147.63
MOL File	1633-05-2.mol

Chemical Properties

Appearance	Milky white free flowing powder
Melting point	1494 °C (lit.)
density	3.7 g/mL at 25 °C(lit.)
refractive index	1.518
storage temp.	Inert atmosphere,Room Temperature
solubility	dilute aqueous acid: slightly soluble(lit.)
form	Powder
color	white
Specific Gravity	3.7
Odor	Odorless
PH	7-8 (20°C, 0.01g/L in H2O)
Stability:	Stable. Incompatible with strong acids.
Water Solubility	Soluble in ammonium chloride. Slightly soluble in ammonia and water.
Merck	14,8838
Solubility Product Constant (Ksp)	pKsp: 9.25
InChIKey	LEDMRZGFZIAGGB-UHFFFAOYSA-L
LogP	-0.809 (est)
Uses	Strontium carbonate (SrCO3) is used to make radiation-resistant glass and TV picture tubes, as well as pyrotechnics. less more
CAS DataBase Reference	1633-05-2(CAS DataBase Reference)
EPA Substance Registry System	1633-05-2(EPA Substance)

Safety Data

WGK Germany	-
TSCA	Yes
HS Code	2836920000
Hazardous Substances Data	1633-05-2(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

Chemical Properties

Milky white free flowing powder

Physical properties

White orthorhombic crystals; refractive index 1.518; hygroscopic; hardness 3.5 Mohs; density 3.5 g/cm³; insoluble in water; soluble in dilute acids with liberation of carbon dioxide.

Occurrence

Strontium carbonate occurs in nature as mineral strontianite. The compound is used in pyrotechnics and ceramic ferrites. It also is used in making iridescent glass for color television tubes. Other uses are in refining sugar and preparing other strontium salts.

Definition

strontianite: A mineral form ofstrontium carbonate, SrCO₃.

Definition

strontium carbonate: A whitesolid, SrCO₃; orthorhombic; r.d. 3.7;decomposes at 1340°C. It occurs naturallyas the mineral strontianite andis prepared industrially by boiling celestine(strontium sulphate) with ammoniumcarbonate. It can also beprepared by passing carbon dioxideover strontium oxide or hydroxide orby passing the gas through a solutionof strontium salt. It is a phosphor,used to coat the glass of cathode-rayscreens, and is also used in the refiningof sugar, as a slagging agent incertain metal furnaces, and to providea red flame in fireworks.

Preparation

Strontium carbonate occurs in nature as strontianite and can be mined from its deposit. It is, however, usually made commercially from the mineral “celestite”. Celestite is fused with sodium carbonate at elevated temperatures or boiled with a solution of ammonium carbonate.Strontium carbonate is insoluble in water. It precipitates from the product mixture in the second reaction. If fused with sodium carbonate, the product mixture is leached with water. Insoluble carbonate separates from the water-soluble sodium sulfate.

General Description

SRM 987_cert SRM 987 _SDS

Material Safety Data Sheet(MSDS)

Questions And Answer

Description
Strontium carbonate (SrCO3)(1633-05-2) belongs to the carbonate salt of strontium, which is found in nature as the mineral strontianite. It can be applied in a variety of industries. At present, strontium carbonates are commonly being applied as an inexpensive colorant in pyrotechnics since strontium and its salts produce a crimson read flame. Strontium carbonate, in general, is preferred in fireworks, compared with other strontium salts due to its inexpensive cost, nonhygroscopic property, and ability to neutralize acid. It can also be used as road flares and for preparing iridescent glass, luminous paints, strontium oxide or strontium salts and in refining sugar and certain drugs. It is also recommended as a substitute for barium to produce matte glazes. Besides, its applications involves in ceramics industry, where it serves as an ingredient in glazes, and in electric products, where it is used for the production of strontium ferrites to produce permanent magnets for loudspeakers and door magnets. Strontium carbonate is also used for manufacturing some superconductors such as BSCCO and also for electroluminescent materials. ;
Production Methods
Strontium carbonate occurs in nature as strontianite and can be mined from its deposit. It is, however, usually made from the mineral celestite. Celestite is fused with sodium carbonate at elevated temperatures or boiled with a solution of ammonium carbonate:
SrSO4 + Na2CO3 → SrCO3 + Na2SO4
SrSO4 + (NH4)2CO3 → SrCO3 + 2NH3 + CO2 + H2O
Strontium carbonate is insoluble in water. It precipitates from the product mixture in the second reaction. If fused with sodium carbonate, the product mixture is leached with water. Insoluble carbonate separates from the watersoluble sodium sulfate. ;
References
https://en.wikipedia.org/wiki/Strontium_carbonate
http://www.nanopartikel.info/en/nanoinfo/materials/strontium-carbonate ;

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Chemical Properties

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Raw materials

Preparation Products

Hazard Information

Chemical Properties

Physical properties

Occurrence

Definition

Definition

Preparation

General Description

Material Safety Data Sheet(MSDS)

Questions And Answer

Description

Production Methods

References

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