Chromium standard solution
Potassium dichromate solution, CAS 7778-50-9, with the molecular formula K2Cr2O7 and a molecular weight of 294.18 g/mol, is a high-purity (99.99% trace metals basis) chemical reagent. This orange, water-soluble solution is primarily utilised for its properties as an oxidizing agent in chemical synthesis and analytical applications, including atomic absorption spectrometry. Its limited availability in Japan requires specific sourcing.
- IUPAC
- Potassium dichromate solution
Analytical Reagent
Suitable for atomic absorption spectrometry, this high-purity solution serves as a reliable standard for chromium analysis. Its precise concentration and low impurity profile ensure accurate quantitative measurements in laboratory settings.
Chemical Synthesis
As a potent oxidizing agent, potassium dichromate solution is employed in various organic synthesis pathways. It facilitates oxidation reactions where controlled and reliable reagent performance is critical for achieving desired product outcomes.
Chromate Standard
This solution functions as a standard for chromate determination and related analytical procedures. Its verified composition makes it suitable for calibrating instruments and validating analytical methods involving chromium species.
| Molecular weight | 294.18 |
|---|---|
| Linear formula | K2Cr2O7 |
| Assay | 99.99% trace metals basis |
| Solubility | H2O: soluble0.1 M at 20 °C, clear, orange |
| Concentration | 1 mg/mL Cr1000 ppm Cr |
| Impurities tested | <0.1% Insoluble matter |
| Suitability | suitable for atomic absorption spectrometry |
| Melting point | 398 °C(lit.) |
Hazard statements
- H340May cause genetic defects
- H350May cause cancer
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P201Obtain special instructions before use
- P273Avoid release to the environment
- P308IF exposed or concerned
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 45-46-20-52/53 |
| Safety statements (S) | 53-45-61 |
| Cation traces | Al: Ca: Cu: Fe: Mg: Na: Pb: Zn: ≤0.001% |
| Anion traces | sulfate (SO42-): <0.005% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Availability | available only in Japan |
|---|---|
| Shelf Life | (limited shelf life, expiry date on the label) |
| Factor | 1.000 ±0.001 |
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 Potassium Dichromate Solution used for?
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Potassium dichromate solution (CAS 7778-50-9) is used as an oxidizing agent in chemical synthesis and as a standard in analytical applications, particularly for atomic absorption spectrometry.
What are the CAS number and formula for Potassium Dichromate Solution?
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The CAS number for Potassium Dichromate Solution is 7778-50-9, and its chemical formula is K2Cr2O7.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium Dichromate Solution with an assay of 99.99% on a trace metals basis. TSS does not represent this product as USP, BP, or EP grade.
What are the primary safety concerns when handling this product?
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This product carries significant hazards indicated by GHS08 (Danger). It is classified with H340 (May cause genetic defects), H350 (May cause cancer), and H412 (Harmful to aquatic life with long lasting effects). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection (e.g., type ABEK filter), is essential. Handle in a well-ventilated area and avoid release into the environment.
Is this product available for export?
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Currently, Potassium Dichromate Solution is available only in Japan. Please contact us for specific export inquiries.
How can I request a quote or sample?
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To request a quote or sample for Potassium Dichromate Solution, please use the 'Request a Quote' or 'Sample Request' forms available on our website, or contact our sales team directly.
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