Description

Chromium(+3) Cation Trisulfate is a specialized inorganic salt featuring the trivalent chromium cation complexed with sulfate anions. This compound is valued for its role as a stable source of chromium(III) ions in various catalytic and materials synthesis processes. It is primarily utilized by industries involved in chemical manufacturing, surface treatment, and advanced material research where precise control over chromium content is required.

Application

• Catalyst Precursor: Serves as a starting material in the synthesis of heterogeneous catalysts for organic reactions.
• Surface Treatment & Conversion Coatings: Used in formulations for producing protective chromate conversion coatings on metals like aluminum and its alloys.
• Pigment & Dye Intermediate: Acts as a key intermediate in the manufacture of certain green inorganic pigments and mordant dyes.
• Electroplating Baths: Employed as a source of chromium ions in specialized electroplating solutions.
• Laboratory Research & Synthesis: Utilized as a reagent in inorganic and materials chemistry research for preparing other chromium complexes.
• Wood Preservation: A component in certain wood treatment formulations where chromium acts as a fixative for other preservative agents.

Basic Information

Product Name	Chromium(+3) Cation Trisulfate
CAS No.	39378-25-1
Molecular Formula	Cr2(SO4)3 or related hydrate forms
Molecular Weight	Contact for details (varies by hydration state)
Synonyms	Chromium(III) sulfate; Chromic sulfate; Basic chromium sulfate; Chromium sesquisulfate; Chromium trisulfate; Tanning chrome; Chrome tanning salt; Sulfuric acid, chromium(3+) salt (3:2)
EINECS	Contact for details

Quality Control

Our Chromium(+3) Cation Trisulfate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent composition, purity, and performance. Certificates of Analysis (COA) detailing key parameters such as chromium content, sulfate content, and impurity profiles are available upon request to support your quality assurance protocols.

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) and must be kept in a dry environment to prevent caking and degradation. Keep away from incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	Violet or green powder/crystals
Identification (IR)	Complies
Assay (as Cr2(SO4)3)	≥ 98.0%
Chromium (Cr) Content	Contact for details
Water Insoluble Matter	≤ 0.5%
Chloride (Cl)	≤ 0.01%
Iron (Fe)	≤ 0.005%
Loss on Drying	Contact for details

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