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Calcium Sulfate (Anhydrous)

Name: Calcium Sulfate (Anhydrous)
Brand: EAST CHEM
Price: 2 USD
Availability: InStock

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CAS No.:

7778-18-9

Grade:

Pharmaceutical Grade

Content:

99%

Port:

Qingdao

Brand:

EAST CHEM

Packaging:

25KG/DRUM

Price valid (until):

2025-05-20

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QINGDAO EAST CHEMSOURCES TRADE CO.,LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Product Name: Calcium Sulfate (Anhydrous)
Synonyms: Anhydrite, Terra Alba, Calcium Sulfate Anhydrous
CAS Number: 7778-18-9
EC Number: 231-900-3
Molecular Formula: CaSO₄
Molecular Weight: 136.14 g/mol

1. Physical Properties

Property	Value
Appearance	White crystalline powder
Odor	Odorless
Density	2.96 g/cm³ (20°C)
Melting Point	1460°C (decomposes at 1450°C)
Solubility	Slightly soluble in water (0.2 g/L at 20°C)
pH (Slurry)	7.0 (50 g/L in water)
Hygroscopicity	Moderately hygroscopic

2. Chemical Properties

Stability: Chemically stable under normal conditions.
Incompatibilities: Reacts with strong acids (e.g., HCl, H₂SO₄) and alkalis. Avoid contact with aluminum and reducing agents.
Decomposition: Releases sulfur oxides and calcium oxide when heated above 1200°C3.

3. Purity & Specifications

Parameter	Typical Value
Assay	≥98.0% (complexometric)
Loss on Ignition	≤2.0% (800°C)
Heavy Metals (as Pb)	≤0.001%
Chloride (Cl⁻)	≤0.030%
Sulfate (SO₄²⁻)	48.0–52.0%
Water Content	≤0.5% (Karl Fischer method)

4. Applications

Construction:
- Cement retarder to control setting time.
- Gypsum board production (anhydrite form).
Agriculture:
- Soil conditioner to improve drainage and reduce salinity.
- Calcium and sulfur fertilizer.
Food Industry:
- Firming agent (E516), dough conditioner, and calcium fortifier.
Pharmaceuticals:
- Tablet excipient and bone graft material.
Other Uses:
- Paper filler, flame retardant, and mold-making in dentistry.

5. Handling & Storage

Handling: Avoid inhalation of dust. Use gloves, goggles, and respiratory protection in dusty environments1.
Storage: Store in tightly sealed containers in a cool, dry place. Protect from moisture to prevent caking10.

6. Safety Information

Hazard Classification: Not classified as hazardous under EU CLP or OSHA standards1 10.
Toxicity: Low toxicity. Ingestion of large amounts may cause gastrointestinal irritation.
First Aid:
- Inhalation: Move to fresh air.
- Skin/Eye Contact: Rinse with water.
- Ingestion: Rinse mouth and seek medical advice.

7. Packaging

Standard Packaging: 25 kg multi-ply paper bags or 50 kg bulk bags.
Custom Options: Available upon request (e.g., drums, pallets with moisture-proof liners).

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Company Introduction: East Chemsources Limited was established in 2008, is a professional company engaged in the development of chemical products. In the past of 15 years，through continuous technological innovation and the use of talent introduction advantages, we have achieved rapid development, and has become an international diversified modern chemical enterprise. At present, our products have been exported to more than 80 countries,including food additives, medical raw materials, chemical products and personal care

Since the establishment of the company, always adhere to the credibility first, quality first enterprise creed. Our company is committed to creating a customer-centric, customer-demand-oriented, customer value creation and achievement of customer dreams for the purpose of the service concept, with a broad vision and broad mind, committed to creating good benefits and market operation, to build corporate brand.

Basic Info

Product Name:

Calcium sulfate

Other Name:

Sulfuric acid,calcium salt (1:1);Calcium sulfate;Calcium sulphate;Crysalba;Calcium sulfate (CaSO4);Calcium sulfate (1:1);Drierite;Thiolite;Sulfuric acid calcium salt;Sulfuric acid calcium(2+) salt (1:1);Basic calcium sulfate;Denka Sigma 1000;SSS-A;A 30 (sulfate);CAS 20;A 30;CA 5 (sulfate);CA 5;CAS 20-4;Osteoset;D 101A;Oparex 10;D 101A (sulfate);Franklin Fiber H 45;CoCoat P 80HB;Raddichem 27;SurgiPlaster;D 1;D 1 (sulfate);Capset;Calmatrix;GR;GR (sulfate);KemWhite CG 80;JAX CS;CAB 30;HG 2;HG 2 (sulfate);NP-S 02;SK 10;NP-M 01;TR 100 (sulfate);E 541;NP-MO 1;CaSO4;NP-S 04;NW 10;NW 20;NP-M 02I30;BKL-B 6D556CL1;NP-M 02;NP-S 04E;NP-S 15;23296-15-3;99400-01-8;146522-67-0;151621-69-1;326855-67-8;871982-24-0;1314087-18-7;1428662-16-1

CAS No.:

7778-18-9

Molecular Formula:

Ca.H2O4S

InChIKeys:

InChIKey=GJYLKIZKRHDRER-UHFFFAOYSA-N

Molecular Weight:

136.14100

Exact Mass:

135.91400

EC Number:

231-900-3

UNII:

E934B3V59H

ICSC Number:

1589

DSSTox ID:

DTXSID9029699

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|For more Color/Form (Complete) data for CALCIUM SULFATE (7 total), please visit the HSDB record page.

HScode:

2833299090

Categories:

Anticaking Agent

Characteristics

PSA:

88.64000

XLogP3:

-0.25720

Appearance:

White Powder

Density:

2.960 g/cm³

Melting Point:

1450 °C

Boiling Point:

330ºC at 760 mmHg

Refractive Index:

INDEX OF REFRACTION: 1.521, 1.523, 1.530; LOSES 1/2 H2O AT 128 °C & 2 H2O AT 163 °C /DIHYDRATE/|INDEX OF REFRACTION: 1.569, 1.575, 1.613

Water Solubility:

Soluble in water.

Storage Conditions:

Store at RT.

Vapor Pressure:

0 mmHg (approx)

Flammability characteristics:

Noncombustible Solid

Odor:

PURE ANHYDROUS CALCIUM SULFATE IS ODORLESS

Experimental Properties:

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/|NEITHER ANHYDROUS NOR DIHYDRATE FORMS CAN SET WITH WATER|For more Other Experimental Properties (Complete) data for CALCIUM SULFATE (6 total), please visit the HSDB record page.

Air and Water Reactions:

No rapid reaction with air No rapid reaction with water

Reactive Group:

Salts, Basic

Reactivity Profile:

CALCIUM SULFATE is non-combustible. Decomposes to give toxic oxides of sulfur, but only at very high temperature (>1500°C). Generally of low reactivity but may act as an oxidizing agent: incompatible with diazomethane, aluminum, and phosphorus. Certain forms of calcium sulfate react with water; others do not. INSOLUBLE ANHYDRITE or dead-burned gypsum is made by the dehydration of calcium sulfate dihydrate (gypsum) at high (> 600°C) temperature. At room temperature, insoluble anhydrite dissolves very slowly to the extent of 0.24 g per 100 g of water and does not absorb moisture from the air. SOLUBLE ANHYDRITE, which is obtained by heating calcium sulfate dihydrate at a temperature below 300°C, has a high affinity for water and is used as a desiccant. Soluble anhydrite absorbs water to form calcium sulfate hemihydrate (Plaster of Paris).

Flammable Limits:

Noncombustible Solid

See More Calcium sulfate Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Dry.KEEP WELL CLOSED. HEMIHYDRATE

See More Calcium sulfate Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

Location:
Room 501, Unit 6, No. 40, hushan road,Licang,Qingdao

Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2017

QINGDAO EASTCHEMSORCES TRADE LIMITED is a leading Manufactory supplier of Sorbitol, Citric acid, Sodium hypochlorite based in Qingdao, Shandong, China. With a commitment to quality and customer satisfaction, QINGDAO EASTCHEMSORCES TRADE LIMITED has become a trusted name in the industry. Our product line includes a range of high-quality Sorbitol, Citric acid, Sodium hypochlorite, which are available at competitive prices. QINGDAO EASTCHEMSORCES TRADE LIMITED has established itself as a reliable supplier of chemical products on the echemi.com.

Inquiry History

9 Inquiries

Country	Product	Purchase Quantity	Date Posted
Pakistan	Calcium Sulphate	1.00 20' Fcl	Jun 27, 2025
India	Calcium Sulfate	30 MT	Jul 1, 2024
South Korea	Calcium Sulfate	1 MT	Jun 24, 2024
India	ANHYDROUS CALCIUM SULFATE (7778-18-9)	500 MT	Nov 6, 2023
Singapore	Calcium BiSuphite	3 KG	Nov 7, 2025
Spain	CALCIUM SULPHATE	56.00 KG	Jul 20, 2023
Malaysia	calcium sulphate	2000 KG	Aug 27, 2025
India	Calcium Sulfate	1.00 MT	Mar 4, 2025
Malaysia	Calcium sulphate Anhydrite	1 MT	Jun 6, 2023

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