Chromium(III) potassium sulfate dodecahydrate
Chromium(III) potassium sulfate dodecahydrate (CAS: 7788-99-0; Formula: CrK(SO4)2 · 12H2O) is a distinct inorganic salt with a molecular weight of 499.40 g/mol. Supplied by Tech Serve Solutions as an ACS reagent grade, this compound finds utility in various chemical synthesis processes and serves as a reliable material in catalysis and inorganic chemistry research. Its reliable quality ensures consistent performance in demanding laboratory applications.
- IUPAC
- Chrome alum,Potassium chromium(III) sulfate dodecahydrate
- Synonyms
- Chrome alumPotassium chromium(III) sulfate dodecahydrate

Catalysis and Inorganic Chemistry
Serves as a valuable reagent in the field of catalysis, facilitating various chemical transformations. Its inorganic nature makes it a subject of study and application in inorganic chemistry.
Chemical Synthesis
Utilised as a building block or reagent in the synthesis of more complex chemical compounds. Its specific chemical properties enable diverse synthetic routes.
Research and Development
An essential chemical for research laboratories, supporting experimental work in academic and industrial settings. Its well-defined specifications aid in reproducible research outcomes.
| Molecular weight | 499.40 |
|---|---|
| Linear formula | CrK(SO4)2 · 12H2O |
| Assay | ≥98%98.0-102.0% (ACS specification) |
| Grade | ACS reagent |
| Impurities tested | ≤0.01% insolubles |
| Melting point | 89 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Cation traces | Al: ≤0.02%Fe: ≤0.01%NH4+: ≤0.01%heavy metals (as Pb): ≤0.01% |
| Anion traces | chloride (Cl-): ≤0.002% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Chromium(III) potassium sulfate dodecahydrate used for?
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Chromium(III) potassium sulfate dodecahydrate is primarily used in catalysis, inorganic chemistry, and chemical synthesis, serving as a key reagent in research and development.
What are the CAS number and chemical formula?
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The CAS number is 7788-99-0, and the chemical formula is CrK(SO4)2 · 12H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound at ACS reagent grade, with an assay of ≥98% or 98.0-102.0% as per ACS specification. It contains ≤0.01% insolubles.
What are the safety and handling recommendations?
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According to safety data, this compound has a WGK of 2. It requires the use of eyeshields and gloves, and a type N95 (US) or type P1 (EN143) respirator filter when handling.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, packaging and shipping products according to international standards.
How can I request a quote or sample?
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To request a quote or a sample, please contact our sales team through the details provided on our website.
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