Description

Calcium Sulfate CAS NO 99400-01-8 is an inorganic compound widely recognized for its versatility and utility across numerous industrial sectors. This material serves as a crucial functional additive, offering properties such as desiccation, setting control, and filler reinforcement. It is an essential raw material for industries including construction, food processing, pharmaceuticals, and agriculture, where consistent quality and reliable supply are paramount.

Application

• Construction & Building Materials: As a key component in gypsum plaster, wallboard (drywall), and cement to control setting time and add fire resistance.
• Food Industry (FCC Grade): Used as a firming agent (coagulant) in tofu production, a calcium source in fortified foods and beverages, and a dough conditioner in baking.
• Pharmaceuticals (USP/EP Grade): Employed as an inert excipient (diluent) in tablet formulations and as a calcium supplement in nutritional products.
• Agriculture & Soil Treatment: Applied as a soil conditioner (gypsum) to improve soil structure, reduce crusting, and supply calcium and sulfur to plants.
• Industrial Manufacturing: Acts as a filler and pigment in paints, paper, and textiles, and as a desiccant in various chemical processes.
• Art & Dentistry: Used in plaster for molds and casts, and in dental applications for creating precise impressions and models.

Basic Information

Product Name	Calcium Sulfate
CAS No.	99400-01-8
Molecular Formula	CaSO4
Molecular Weight	136.14 g/mol (anhydrous)
Synonyms	Gypsum; Anhydrite; Drierite; Alabaster; Satin Spar; Selenite; Terra Alba; Plaster of Paris; Calcium Sulphate; Calcium Sulfate Anhydrous; Calcium Sulfate Dihydrate; Sulfuric Acid Calcium Salt (1:1)
EINECS	231-900-3

Quality Control

Our Calcium Sulfate is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. We offer various grades, including Industrial, Food (FCC), and Pharmaceutical (USP/EP), each meeting the relevant purity and safety specifications. Comprehensive quality testing is performed, and a Certificate of Analysis (COA) is provided with every shipment to guarantee compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent caking due to absorption of atmospheric moisture. Keep away from incompatible materials such as strong acids and aluminum.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as CaSO4)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
Chloride (Cl)	≤ 0.05 %
Sieve Analysis	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.