Description

Chromic Sulfate is an essential inorganic salt widely recognized for its role as a versatile chromium source and effective tanning agent. Its primary value lies in delivering consistent, high-purity chromium (III) ions, which are critical for processes requiring controlled oxidation states and stable coloration. This compound is particularly vital for industries such as leather manufacturing, metal finishing, and catalyst production, where reliable chemical performance is paramount.

Application

• Leather Tanning: A primary agent for chrome tanning, providing durable, high-quality leather with excellent hydrothermal stability.
• Metal Surface Treatment: Used in electroplating baths and conversion coatings to enhance corrosion resistance and adhesion.
• Catalyst & Chemical Synthesis: Serves as a precursor or catalyst in various organic synthesis and polymerization reactions.
• Pigment & Dye Manufacturing: Imparts green coloration in ceramics, paints, and inks.
• Wood Preservation: Acts as a component in formulations to protect wood from fungal decay and insect damage.
• Textile Mordant: Used to fix dyes to fabrics, improving colorfastness and vibrancy.

Basic Information

Product Name	Chromic Sulfate
CAS No.	10101-53-8
Molecular Formula	Cr2(SO4)3
Molecular Weight	392.16 g/mol (anhydrous basis)
Synonyms	Chromium(III) sulfate; Chromic sulphate; Basic chromium sulfate; Chromium trisulfate; Tanning chrome; Chrome tanning salt; Chromium salt
EINECS	233-253-2

Quality Control

Our Chromic Sulfate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including assay for chromium content and limits for key impurities. A Certificate of Analysis (COA) detailing purity, physical parameters, and conformance to agreed specifications is provided with each shipment 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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Violet or green powder
Identification (IR)	Conforms
Assay (as Cr2(SO4)3)	≥ 98.0 %
Chromium (Cr) Content	Contact for details
Insoluble Matter	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Iron (Fe)	≤ 0.01 %
pH (5% solution)	2.5 - 3.5

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