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Home > Inorganic Chemistry > Inorganic Salts > Calcium sulfate for Sale > Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica
Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica buy - large image1
Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica buy - image1
Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica buy - image2
Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica buy - image3
Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica buy - image4
Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica buy - image5
Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica buy - image6

Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica

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Unit Price:

$10-13/KG FOB

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CAS No.:

7778-18-9

Grade:

Indicator Grade

Content:

99%

Port:

qingdao

Brand:

//

Packaging:

100g/bottle, 500g/bottle, 1kg/bag, 5kg/bag

Price valid (until):

2026-08-25

Company Type:
Trader
Location:
China
Qualification:
Main Products:

3-(1-Naphthoyl)indole

  • Product Description

  • Seller Information

  • Inquiry History

  • Description

    —— Product Specifications ——

    Shop Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica-Detailed Image 1

    —— Product Detail ——

    Product Overview

    Calcium sulfate is an inorganic compound with the molecular formula CaSO₄ and a molecular weight of 136.14 g/mol. This white crystalline powder is a widely used industrial chemical, known in its hydrated form as gypsum (CaSO₄·2H₂O). The compound is used in construction materials, as a desiccant, in food processing as a firming agent and calcium supplement, and as a pharmaceutical excipient. Its excellent water-binding properties and low solubility make it valuable in various applications. The anhydrous form, known as anhydrite, is used as a drying agent for gases and liquids.

    Synthetic Process

    Calcium sulfate is manufactured through the following routes:

    • Mining and processing: Natural gypsum is mined, crushed, and processed to obtain the desired purity and particle size.

    • Synthetic production: Byproduct from industrial processes such as phosphoric acid production.

    • Purification: The crude product is purified by precipitation or recrystallization.

    Mechanism of Action / Application Principles

    • Construction Material: Used in the production of plaster and cement.

    • Desiccant: Removes moisture from gases and liquids.

    • Food Additive: Used as a firming agent, calcium supplement, and processing aid.

    Quality Specifications



    Parameter Specification
    Assay (CaSO₄ basis) ≥98.0%
    Appearance White crystalline powder
    Loss on Ignition ≤1.0%
    Insoluble Matter ≤0.05%
    Heavy Metals (as Pb) ≤10 ppm

    Each batch is accompanied by a Certificate of Analysis (COA).

    Packaging & Storage

    • Research quantities: 100g, 500g HDPE bottles

    • Bulk quantities: 1kg, 5kg double-layer polyethylene bags

    Storage conditions: Store in a cool, dry place in tightly sealed containers, protected from moisture. Under recommended conditions, shelf life is 36 months.

    C ompany Profile ——


     Shop Amberlite IR-120 Cation Exchange Resin Sodium Form CAS 9002-23-7 High Purity Strong Acid Cation Exchange Resin for Water Softening, Demineralization,-Detailed Image 2

    Jinan Topfull Chemical Co., Ltd. is an international company rooted in China, specializing in the export of chemical products.

    Our company is committed to making every effort to provide ideal chemical products to potential customers worldwide, including but not limited to: organic/inorganic reagents, biological reagents, plant extracts, pharmaceutical intermediates, active pharmaceutical ingredients (APIs), reference standards, reference substances, peptides, and more. Meanwhile, we have established long-term and stable cooperative relationships with university laboratories and off-campus research institutions, enabling us to offer tailored product services based on customers' actual needs.

    We currently support customized services for most product categories, with supply quantities ranging from milligram (mg), gram (g) to kilogram (kg) levels, as well as wholesale. Product purity covers the full spectrum from 90% to 99.9%, providing customers with one-stop convenient services.

    To date, our products have been exported to developed countries such as the United States, Australia, Canada, Mexico, as well as EU member states including France, Germany, and many other countries and regions such as Nigeria, Ghana, Southeast Asia, and other parts of Asia. Our product quality and services have consistently received high praise.

    Looking ahead, our company will continue to serve as a bridge connecting China and the world, delivering high-quality products and services to global customers.

     

    Shop Amberlite IR-120 Cation Exchange Resin Sodium Form CAS 9002-23-7 High Purity Strong Acid Cation Exchange Resin for Water Softening, Demineralization,-Detailed Image 3

    Shop Amberlite IR-120 Cation Exchange Resin Sodium Form CAS 9002-23-7 High Purity Strong Acid Cation Exchange Resin for Water Softening, Demineralization,-Detailed Image 4 

    —— Q&A ——

    Q1: How to confirm the product quality before placing orders?
    A: By sending you available samples. Or if you have special requirements for the goods, we can prepare samples according to your requirements for confirmation.

    Q2: Can you supply free samples?
    A: Yes, we can provide a free sample, but the shipping cost will be paid by the customers. You can either pay the shipping cost or arrange a courier to collect the samples.

    Q3: How do you treat quality complaints?
    A: All our products are strictly tested by our QC and confirmed by QA; unqualified material will not be released to customers. If any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment immediately.

    Q4: What is your MOQ? Is there a discount?
    A: For highvalue products, our MOQ starts from 1g and generally starts from 10g. For other lowprice products, our MOQ starts from 100g and 1kg.
    Q: Is there a discount?
    A: Yes, for larger quantities, we always support with better prices.

    Q5: How to start orders or make payments?
    A: You can send us your Purchase Order (if your company has one), or just send a simple confirmation by email or via Trade Manager. We will then send you a Proforma Invoice with our bank details for your confirmation, and you can make payment accordingly. If you have other preferred payment methods, we are open to discussion and negotiation.



    Certificates
    • Calcium Sulfate 98% Purity CAS 7778-18-9 High Purity Gypsum for Construction Materials, Desiccant, Food Additive, and Pharmaceutical Excipient Applica Certificates 1

    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:

    Inorganic Salts

    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

    Hazard Identification

    Classification of the substance or mixture

    Not classified.

    GHS label elements, including precautionary statements

    Pictogram(s) No symbol.
    Signal word

    No signal word

    Hazard statement(s)

    none

    Precautionary statement(s)
    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

  • Seller Information
    Business Type:

    Trader

    Main Products:

    3-(1-Naphthoyl)indole

    Location:

    RONGSHENG BEIYUANDAJIE 9, LICHENG DISTRICT,JINAN, SHANDONG CHINA

    Year of Establishment:

    2022

    Jinan Topfull Chemical Co., Ltd. is a global chemical Industrial and focuses on advanced chemical technology. Specialized in Cosmetic materials, water treatment, fine chemicals and so on. We are looking forward to working together with the people of all circles at home and abroad to seek common development!
  • Inquiry History
    7 Inquiries
    Country Product Purchase Quantity Date Posted
    Singapore

    Calcium BiSuphite

    3 KG Nov 7, 2025
    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
    Malaysia

    calcium sulphate

    2000 KG Aug 27, 2025
    India

    Calcium Sulfate

    1.00 MT Mar 4, 2025
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