Description

C3A (70-77) is a high-purity grade of tricalcium aluminate, a key mineral phase in Portland cement clinker. Its controlled composition is critical for influencing the setting time, early strength development, and sulfate resistance of cementitious materials. This product is essential for manufacturers and researchers in the construction materials, cement production, and advanced ceramics industries seeking to precisely engineer material properties.

Application

• Cement & Concrete Research & Development: As a pure reference material for studying hydration kinetics, phase formation, and the impact of individual clinker phases on final product performance.
• Specialty Cement Formulation: A key component in the production of calcium aluminate cements (CAC), expansive cements, and rapid-hardening cements where controlled early strength is paramount.
• Construction Materials Science: Used in laboratories to model and simulate the behavior of industrial cements, aiding in the development of new additives and admixtures.
• Refractory and Ceramic Production: Serves as a precursor or additive in the manufacture of high-alumina refractories and certain advanced ceramic compositions due to its high-temperature properties.
• Quality Control & Standardization: Employed as an analytical standard or a known component in calibration mixtures for X-ray diffraction (XRD) and other analytical techniques within cement plants and testing facilities.

Basic Information

Item	Details
Product Name	C3A (70-77)
CAS No.	63555-63-5
Molecular Formula	3CaO·Al₂O₃ / Ca₃Al₂O₆
Molecular Weight	270.19 g/mol
Synonyms	Tricalcium Aluminate; Calcium Aluminum Oxide (3:1:3); Aluminate, tricalcium; Portland Cement Clinker Phase C3A; 3CaO·Al₂O₃; CA3; TCA
EINECS	Contact for details

Quality Control

Our C3A (70-77) is produced and tested to meet exacting standards for phase purity and chemical composition. Each batch is characterized using techniques such as X-ray diffraction (XRD) and X-ray fluorescence (XRF) to ensure consistency and performance. A comprehensive Certificate of Analysis (COA) detailing phase content, chemical assay, and physical properties is provided with every shipment.

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). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect purity and reactivity.

Specification

Item	Specification
Appearance	Fine, homogeneous powder
Identification (XRD)	Conforms to Tricalcium Aluminate pattern
Tricalcium Aluminate (C3A) Content	70 - 77 %
Loss on Ignition (LOI)	≤ 2.0 %
Particle Size (D50)	Contact for details
Insoluble Residue	≤ 0.5 %

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