Strontium sulfate
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Strontium sulfate
structure -
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CAS No:
7759-02-6
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Formula:
O4SSr
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Chemical Name:
Strontium sulfate
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Synonyms:
Strontium sulfate, Puratronic, 99.9965% (metals basis);Strontium Sulfate, Puratronic (Metals Basis);Strontium monosulfate;Sulfuricacid,strontiumsalt(1:1);STRONTIUM SULFATE, REAGENTSTRONTIUM SULFATE, REAGENTSTRONTIUM SULFATE, REAGENTSTRONTIUM SULFATE, REAGENT;STRONTIUM SULFATE;STRONTIUM SULPHATE;STRONTIUM (II) SULFATE
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CAS No:
Description
Milky white powder
DryPowder|ODOURLESS WHITE CRYSTALLINE POWDER.
Strontium sulfate has the molecular formula of SrSO4 and the molecular weight of 183.6842 g/mol. It can be prepared by the reaction of sodium sulfate and strontium chloride:Na2SO4+SrCl2SrSO4+2NaClStrontium sulfate occurs in nature as “celestite” and is mined from its natural deposits. Also, the sulfate can be made by reacting strontium oxide, hydroxide, or carbonate with dilute hydrochloric acid:SrO+H2SO4SrSO4+H2OSrCO3+H2SO4SrSO4+CO2+H2ONo hydrates are known.Its hardness is 3.3 Mohs. It melts at 1608°C. Its solubility in water is 0.015 g/100 ml at 25°C and 0.014 g at 35°C. It is insoluble in ethanol and acetone, but slightly soluble in acids and alkalis. It is soluble in alkali chloride solutions. The heat of formation, △Hf, is –1453 kJ/mol with an entropy value, S0, of 117.0 J/mol K. Its Mohs Hardness is 3.0–3.5. A water solution has a pH of 7.5. Its specific gravity ranges from 3.8 to 4.0 g/cm3.Pure strontium sulfate precipitate consists of single crystals, about some tens of microns long, with distinctly visible growth steps. Crystals grown with polyvinyl sulfonate in stirred solutions show a striking change of habit: they are sponge-like structures, composed of minute crystallites, of size in the nanometer range. Crystallized strontium sulfate is utilized by a small group of protozoa as a main constituent of their skeleton. It is sometimes used to impart iridescence to glass and pottery glazes or used as a fining agent in crystal glass.There is very little demand for this salt in industry. It is available in limited quantities commercially.
strontium sulphate: A white solid,SrSO4; r.d. 3.96; m.p. 1605°C. It canbe made by dissolving strontiumoxide, hydroxide, or carbonate in sulphuricacid. It is used as a pigment inpaints and ceramic glazes and to providea red colour in fireworks.
Strontium sulfate Basic Attributes
183.68
183.85700
231-850-2
7Q3KX2L47F
1696
TSCA listed
White
28332990
Characteristics
88.6
-0.25720
White powder
3.96 g/mL at 25 °C (lit.)
1606 °C (lit.)
330ºC at 760 mmHg
Soluble in dilute hydrochloric acid and nitric acid . Slightly soluble in water < 0.01 g/L . Insoluble in ethanol and alkalis.
Keep container tightly closed. Keep container in a cool, well-ventilated area. Do not store above 25ºC.
Non flammable
Inert atmosphere,Room Temperature
Safety Information
NONH for all modes of transport
3
22-24/25
WT1210000
Stable at normal temperatures and pressures.
P273, P501
H412
Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
H412 (33.33%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]|P273, and P501|Aggregated GHS information provided by 47 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
In case of fire in the surroundings, use appropriate extinguishing media.
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
A nuisance-causing concentration of airborne particles can be reached quickly.
May cause mechanical irritation to the eyes and respiratory tract.
PREVENT DISPERSION OF DUST!
Avoid inhalation of dust.
Protective gloves.
Wear safety goggles.
Drug Information
Fresh air, rest.
Rinse and then wash skin with water and soap.
Rinse with plenty of water for several minutes (remove contact lenses if easily possible).
Cough.
Redness.
Strontium sulfate Use and Manufacturing
The mining method is mainly open-pit mining, but also underground mining, the general process is the same as "phosphorite rock". The high-grade celestite ore can be sold as lump or ground powder only by hand selection; for ores associated with quartz, gypsum, calcite, limonite and clay minerals, the ore can be washed or scrubbed first. The re-selection method is used again; for fine-grained ore and re-selected medium ore and tailings, the flotation method can be used. The principle flow of the beneficiation test of the Aijingshan strontium mine in Jiangsu is as follows:
In ceramics, pyrotechnics.
Fillers
Paints and coatings
Widely applied in the manufacturing of Barium Salts, pigments, special glass, printing inks, paints, filler for textiles, linoleum, paper, rubber, base for color lakes, as pigment and white lead substitutes.
Strontium Sulfate combined with Bi-2212 creates a superconductor.
Paint and coating manufacturing|Sulfuric acid, strontium salt (1:1): ACTIVE
Computed Properties
Molecular Weight:183.69
Hydrogen Bond Acceptor Count:4
Exact Mass:183.85734190
Monoisotopic Mass:183.85734190
Topological Polar Surface Area:88.6
Heavy Atom Count:6
Complexity:62.2
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes
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