Description

Calciumsulphoaluminate is a specialized inorganic compound, also known as calcium sulfoaluminate or Klein's compound. This material is of significant industrial importance due to its unique hydraulic and expansive properties, making it a key component in advanced cementitious systems. It is primarily utilized in the construction and building materials sectors for applications requiring rapid strength development, shrinkage compensation, and sulfate resistance.

Application

• Expansive and Shrinkage-Compensating Cements: A critical component in formulations designed to counteract drying shrinkage and prevent cracking in concrete structures.
• Rapid-Setting and Repair Materials: Used in mortars, grouts, and patching compounds where fast strength gain and early return to service are required.
• Sulfate-Resistant Cements: Enhances the durability of concrete exposed to aggressive environments like seawater or sulfate-rich soils.
• Oil Well Cementing: Employed in specialized oilfield cements for wellbore stabilization under varying pressure and temperature conditions.
• Low-Temperature Construction: Facilitates concrete setting and hardening in cold weather conditions.
• Precast Concrete Manufacturing: Allows for faster demolding and turnover of precast elements, improving production efficiency.
• Waste Immobilization: Used in solidification/stabilization matrices for the containment of certain industrial wastes.

Basic Information

Product Name	Calciumsulphoaluminate
CAS No.	37293-22-4
Molecular Formula	Typically represented as 3CaO·3Al₂O₃·CaSO₄ or C₄A₃Š
Molecular Weight	Contact for details
Synonyms	Calcium Sulfoaluminate; Klein's Compound; Tetracalcium Trialuminate Sulfate; Ye'elimite; C₄A₃Š; CSA; Calcium Aluminosulfate; Sulphoaluminate Cement Clinker Mineral
EINECS	Contact for details

Quality Control

Our Calciumsulphoaluminate is manufactured under strict process controls to ensure batch-to-batch consistency and performance reliability. Quality is verified through a suite of analytical techniques including X-ray diffraction (XRD) for phase composition and chemical analysis for key oxides (CaO, Al₂O₃, SO₃). Certificates of Analysis (COA) detailing purity, mineralogical composition, and physical properties are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. This product is hygroscopic (moisture-sensitive) and must be protected from atmospheric humidity to prevent caking and maintain reactivity. The recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Fine, off-white to gray powder
Main Phase (Ye'elimite) Content	≥ 60% (by XRD)
Loss on Ignition (LOI)	≤ 3.0%
Fineness (Blaine)	4000 ± 500 cm²/g
Setting Time (Initial)	Contact for details
Compressive Strength (1-day)	Contact for details

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