Description

Chromium(III) Carbonate, Basic is an inorganic chromium salt essential for applications requiring a controlled source of trivalent chromium. This compound is valued for its role as a precursor in the synthesis of other chromium-based materials and pigments. It serves critical functions in industries such as catalysts, ceramics, and specialized chemical manufacturing where precise material properties are paramount.

Application

• Catalyst Precursor: Used in the preparation of supported and unsupported chromium catalysts for polymerization and other chemical processes.
• Pigment & Dye Intermediate: Acts as a key starting material in the manufacture of certain green and other inorganic pigments.
• Ceramics & Glass Manufacturing: Employed as a colorant and additive to impart specific properties to ceramic glazes and specialty glass.
• Chemical Synthesis: Serves as a reagent for producing other chromium(III) compounds and complexes in laboratory and industrial settings.
• Surface Treatment: Utilized in certain conversion coatings and surface finishing processes for metals.
• Research & Development: A fundamental material for academic and industrial R&D in inorganic and materials chemistry.

Basic Information

Product Name	Chromium(III) Carbonate, Basic
CAS No.	51142-19-9
Molecular Formula	Variable (Basic salt, often approximated as Cr2(CO3)3·xH2O or Cr(OH)CO3)
Molecular Weight	Variable (Contact for details)
Synonyms	Basic Chromium Carbonate; Chromic Carbonate, Basic; Chromium Carbonate Hydroxide; Chromium Sesquicarbonate; Chromium(III) Carbonate Hydroxide; Chromium Carbonate (Cr2(CO3)3); Chromium(3+) Carbonate
EINECS	257-081-4

Quality Control

Our Chromium(III) Carbonate, Basic is manufactured under controlled conditions to ensure batch-to-batch consistency. Quality is verified through a series of analytical tests including assay (Chromium content), identification, and impurity profiling. A Certificate of Analysis (COA) detailing specific 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, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture and CO2. Separate from strong acids.

Specification

Item	Specification
Appearance	Green to blue-green powder or solid
Identification (IR/XRD)	Conforms
Assay (as Cr2O3 or Cr)	≥ 45% (Typical)
Chloride (Cl)	≤ 0.1%
Sulfate (SO4)	≤ 0.5%
Iron (Fe)	≤ 0.05%
Loss on Drying	≤ 15%

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