Calcium sulfate

• CAS: 7778-18-9
• Catalog Number: ACM7778189
• Category: Metal & Ceramic Materials
• Molecular Weight: 136.14
• Molecular Formula: CaO4S
• Description: Calcium sulfate appears as odorless, white powder or colorless, crystalline solid. Crystals sometimes have a blue, gray or reddish tinge or can be brick red. Density: 2.96 g cm-3.;DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, Liquid; WetSolid;Fine, white to slightly yellowish-white odourless powder;WHITE HYGROSCOPIC POWDER OR CRYSTALLINE POWDER.;Odorless, white powder or colorless, crystalline solid.;Odorless, white powder or colorless, crystalline solid. [Note: May have blue, gray, or reddish tinge.]
• Synonyms: Anhydrite
• IUPAC Name: Calcium;sulfate
• Canonical SMILES: [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
• InChI Key: OSGAYBCDTDRGGQ-UHFFFAOYSA-L
• Boiling Point: Decomposes (NIOSH, 2016);Decomposes;Decomposes
• Melting Point: 1450 °C
• Density: 2.9 g/cm³
• Solubility: Soluble in water
• Appearance: White powder
• Storage: Room Temperature
• Assay: 0.98
• Color/Form: NATURAL ANHYDRITE CRYSTALS ARE COLORLESS, RHOMBIC OR MONOCLINIC;NATURAL ANHYDRITE CRYSTALS ARE ORTHORHOMBIC, COLOR VARIES (WHITE WITH BLUE, GRAY OR REDDISH TINGE, OR BRICK RED);INSOL ANHYDRITE HAS SAME CRYSTAL STRUCTURE AS MINERAL ANHYDRITE;SOL ANHYDRITE IS OBTAINED IN GRANULAR OR POWDER FORM;SOL ANHYDRITE CRYSTALS ARE COLORLESS, HEXAGONAL OR TRICLINIC;PURE ANHYDROUS CALCIUM SULFATE EXISTS IN FORM OF WHITE POWDER OR CRYSTALS;White powder or colorless, crystalline solid [Note: May have blue, gray, or reddish tinge].
• Complexity: 62.2
• Covalently-Bonded Unit Count: 2
• Decomposition: 1450 °C
• EC Number: 231-900-3;231-900-3
• Exact Mass: 135.9143205
• Formal Charge: 0
• H-Bond Acceptor: 4
• H-Bond Donor: 0
• Heavy Atom Count: 6
• ICSC Number: 1589
• MDL Number: MFCD00010912
• Monoisotopic Mass: 135.9143205
• Odor: Odorless
• Other Experimental: POSSESSES HIGH AFFINITY FOR WATER & WILL ABSORB 6.6% OF ITS WT OF WATER FORMING STABLE HEMIHYDRATE /SOL ANHYDRITE/;LOSES 1/2 H₂O AT 163 °C /HALF-HYDRATE/;TASTELESS; SETS TO HARD MASS WHEN MIXED WITH WATER /HEMIHYDRATE/;NEITHER ANHYDROUS NOR DIHYDRATE FORMS CAN SET WITH WATER;WHITE POWDER /HALF-HYDRATE/;COLORLESS MONOCLINIC CRYSTALS /DIHYDRATE/;LUMPS OR POWDER /DIHYDRATE/;0.3 G/100 CC H₂O AT 20 °C; SOL IN ACIDS, AMMONIUM SALTS & GLYCERIN; SLIGHTLY SOL IN HOT WATER /HALF-HYDRATE/;VERY SOL IN GLYCEROL; PRACTICALLY INSOL IN MOST ORG SOLVENTS /DIHYDRATE/;SOL IN SODIUM THIOSULFATE; INDEX OF REFRACTION: 1.505, 1.548; DENSITY 2.61; MP ABOVE 200 °C WITH TRANSITION TO RHOMBIC CRYSTALS /SOL ANHYDRITE/;INDEX OF REFRACTION: 1.521, 1.523, 1.530; LOSES 1/2 H₂O AT 128 °C & 2 H₂O AT 163 °C /DIHYDRATE/;Solubility in water at 20 °C, g/100 g solution: 0.21 /Dihydrate/;Solubility in water at 20 °C, g/100 g solution: 0.67 /Hemihydrate, alpha-form/;Solubility in water at 20 °C, g/100 g solution: 0.88 /Hemihydrate, beta-form/;Solubility in water at 20 °C, g/100 g solution: 0.27 /Anhydrite/
• Packaging: 1 kg
• Refractive Index: INDEX OF REFRACTION: 1.569, 1.575, 1.613
• Rotatable Bond Count: 0
• Stability: Stable. Incompatible with aluminium, strong acids.
• Storage Conditions: Store at RT.
• Topological Polar Surface Area: 88.6 Ų
• UNII: E934B3V59H
• Vapor Pressure: 0 mm Hg (approx) (NIOSH, 2016);0 mmHg (approx);0 mmHg (approx)

Custom Q&A

What is the molecular formula of calcium sulfate?

The molecular formula of calcium sulfate is CaSO4.

What is the molecular weight of calcium sulfate?

The molecular weight of calcium sulfate is 136.14 g/mol.

What are some synonyms for calcium sulfate?

Some synonyms for calcium sulfate are Gypsum, Drierite, and Anhydrous gypsum.

Is calcium sulfate a calcium salt?

Yes, calcium sulfate is a calcium salt and an inorganic calcium salt.

What is the density of calcium sulfate?

The density of calcium sulfate is 2.96 g/cm3.

What is the IUPAC name of calcium sulfate?

The IUPAC name of calcium sulfate is calcium;sulfate.

What is the InChIKey of calcium sulfate?

The InChIKey of calcium sulfate is OSGAYBCDTDRGGQ-UHFFFAOYSA-L.

What is the canonical SMILES of calcium sulfate?

The canonical SMILES of calcium sulfate is [O-]S(=O)(=O)[O-].[Ca+2].

What is the CAS number of calcium sulfate?

The CAS number of calcium sulfate is 7778-18-9.

What is the UNII of calcium sulfate?

The UNII of calcium sulfate is E934B3V59H.