Description

Chromium(III) Sulfate Hydrate is an essential inorganic salt widely utilized for its trivalent chromium content and versatile chemical properties. This compound is valued for its role as a reliable source of chromium ions in industrial processes and material science. It serves as a critical raw material for manufacturers in sectors including leather tanning, textile dyeing, metallurgy, and catalyst production, where consistent quality and purity are paramount.

Application

• Leather Tanning Agent: A primary chemical for chrome tanning, providing durability and hydrothermal stability to leather.
• Textile Mordant: Used to fix dyes onto fabrics, improving color fastness and vibrancy.
• Catalyst Precursor: Serves as a starting material in the synthesis of catalysts for organic reactions and polymerization processes.
• Pigment Manufacturing: A key component in the production of green pigments for paints, ceramics, and plastics.
• Wood Preservation: Employed in formulations to protect timber from fungal decay and insect damage.
• Electroplating & Surface Treatment: Used in electrolytic baths for depositing chromium alloy coatings to enhance corrosion resistance.
• Water Treatment: Acts as a coagulant aid in the removal of suspended solids and phosphates from industrial wastewater.
• Research & Laboratory Reagent: Used in analytical chemistry and academic research for synthesis and standard preparation.

Basic Information

Product Name	Chromium(III) Sulfate Hydrate
CAS No.	15244-38-9
Molecular Formula	Cr2(SO4)3·xH2O
Molecular Weight	392.16 g/mol (anhydrous basis)
Synonyms	Chromic sulfate hydrate; Chromium trisulfate hydrate; Basic chromium sulfate; Chromium(3+) sulfate hydrate; Sulfuric acid, chromium(3+) salt (3:2), hydrate; Tanners' chrome; Chrome tanning salt; Chromium sesquisulfate hydrate
EINECS	Contact for details

Quality Control

Our Chromium(III) Sulfate Hydrate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including assay, impurity profile analysis, and physical characterization. Certificates of Analysis (COA) documenting purity, heavy metal content, and other critical parameters are available for every shipment to support your quality assurance protocols.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can lead to caking or changes in composition.

Specification

Item	Specification
Appearance	Violet or green crystalline powder
Identification (IR)	Conforms
Assay (as Cr2(SO4)3)	≥ 98.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (as SO4)	Conforms
Iron (Fe)	≤ 0.005 %
Heavy Metals (as Pb)	≤ 10 ppm
Water Content (Loss on Drying)	Contact for details

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