Calcium sulfate

Basic Information

View in Editor

CAS Number

7778-18-9

Molecular Formula

CaO4S

Molecular Weight

136.14 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

1450 ºC

Boiling Point

330 °C at 760 mmHg

Density

2.96

Water Solubility

Soluble in water.

Solubility

2g/l

SMILES

View in Editor

[O-]S(=O)(=O)[O-].[Ca+2]

InChI

InChI=1S/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2

InChIKey

OSGAYBCDTDRGGQ-UHFFFAOYSA-L

LogP

-0.25720

Complexity

62.2

Safety Information

View Safety Information

GHS Hazard Pictograms

H317

H334

H341

H411

Hazard Statement

H317 May cause an allergic skin reaction
Sensitization, Skin

H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Sensitization, respiratory

H341 Suspected of causing genetic defects
Germ cell mutagenicity

H411 Toxic to aquatic life with long lasting effects
Hazardous to the aquatic environment, long-term hazard

Hazard Class

Class 9 Class 9

Stability

Stable. Incompatible with aluminium, strong acids.

Sensitiveness

Moisture Sensitive

Synonyms & References

English

Calcium sulfate
calciumsulfate(anhydrous)
calciumsulfate(caso4)
calciumsulfate,anhydrous
crysalba
dead-burnedgypsum
gibs
karstenite
muriacite
naturalanhydrite
Drierite?
Anhydrous calcium sulfate
Drierite, with indicator
α-Gypsum powder
anhydrite
anhydrousgypsum
CalciuM Sulfate, Anhydrous, Puratronic (Metals Basis)
Calciumsulfat
Drierite
DRIERITE 4 MESH
DRIERITE 6 MESH
Drierite?, with indicator, 4 Mesh
Drierite?, without indicator, 4 mesh
r, indicating (CaSO{4})
thiolite
Gypsum
Sulfuric acid, calcium salt (1:1)
calcium sulphate
Anhydrous gypsum
Calcium sulfate, anhydrous
Osteoset

MDL Number

MFCD00149624

Customs Code

2833299090

FAQ

What is Calcium sulfate (CAS: 7778-18-9)?

Calcium sulfate (CAS: 7778-18-9) is a chemical compound with the formula CaSO₄. It is a white, odorless powder that is insoluble in water and commonly found in hydrated forms like gypsum. This compound is widely used due to its stability and versatility in various applications.

What are the main uses of Calcium sulfate (CAS: 7778-18-9)?

Calcium sulfate (CAS: 7778-18-9) is primarily used in construction as a component of drywall and plaster. It also serves as a food additive (E516) for texture and as a pharmaceutical excipient. Additionally, it is employed in industrial processes, such as cement production, and in research for its desiccant properties.

Is Calcium sulfate (CAS: 7778-18-9) safe?

Calcium sulfate (CAS: 7778-18-9) is generally considered non-toxic and safe for use in food, pharmaceuticals, and construction. However, inhalation of dust may cause respiratory irritation, and direct contact with eyes or skin should be avoided. Proper handling and safety standards ensure its safe application in various industries.

How should Calcium sulfate (CAS: 7778-18-9) be stored?

Calcium sulfate (CAS: 7778-18-9) should be stored in a cool, dry place, away from moisture and light. It is stable under normal conditions but requires airtight containers to prevent hydration. Avoid exposure to humid environments to maintain its chemical integrity and effectiveness.