Description

Calcium Aluminate Sulfate is a specialized inorganic compound with the CAS registry number 12005-25-3. This material is valued for its unique chemical properties, serving as a key functional additive in various industrial processes. It is primarily sought after by manufacturers in the construction, refractory, and specialty cement industries for its role in controlling setting times and enhancing material performance.

Application

• Rapid-Setting Cement Formulations: Acts as a critical accelerator to control the hydration and early strength development in specialty cements.
• Refractory Castables and Mortars: Used as a bonding agent and setting regulator in high-temperature resistant materials.
• Construction Grouts and Repair Mortars: Enhances workability, reduces water demand, and ensures quick strength gain for repair applications.
• Oil Well Cementing: Employed in downhole cementing operations where controlled setting under specific pressure and temperature conditions is required.
• Advanced Ceramic Binders: Functions as a low-temperature binder in the production of technical ceramics.
• Waste Solidification/Stabilization: Used in processes to encapsulate and immobilize hazardous or industrial waste streams.

Basic Information

Product Name	Calcium Aluminate Sulfate
CAS No.	12005-25-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Sulfoaluminate Cement Clinker Mineral; Calcium Sulfoaluminate; Klein's Compound; Ye'elimite; Tetracalcium Trialuminate Sulfate; C4A3Ŝ (Cement Chemistry Notation); 3CaO·3Al2O3·CaSO4
EINECS	Contact for details

Quality Control

Our Calcium Aluminate Sulfate is manufactured under strict process controls to ensure batch-to-batch consistency and performance reliability. Quality is verified through analysis of key parameters including phase composition (via XRD), chemical assay, and particle size distribution. A Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Fine, off-white to gray powder
Identification (XRD)	Complies (Ye'elimite phase)
Assay (as C4A3Ŝ)	Min. 65%
Loss on Ignition (LOI)	Max. 3.0%
Particle Size (-45 µm)	Min. 90%
Setting Time (Initial)	Contact for details

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