Potassium dichromate 0.1 N volumetric solution as per, USP
- CAS
- 7778-50-9
- Formula
- Cr2K2O7
- MW
- 294.18 g/mol
ZX-038703
Alkali Metal Compounds (Li, Na, K, Rb, Cs)
Potassium dichromate, ≥99.8%
Available on request
Potassium dichromate, ≥99.8% (CAS 7778-50-9) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-013077.
CAS number7778-50-9
FormulaCr2K2O7
Molar mass294.18 g/mol
Physical formCrystalline
HS code28415090
UN numberUN 3086
Purity≥99.8%
InChIKeyKMUONIBRACKNSN-UHFFFAOYSA-N
IUPAC namedipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
About Potassium dichromate, ≥99.8%
Zemixal supplies Potassium dichromate, ≥99.8% within its inorganic Chemicals, Metals & Advanced Materials portfolio. Identity at a glance (≥99.8%): CAS 7778-50-9, formula Cr2K2O7 and molar mass 294.18 g/mol. Expect orange powder or crystals.
Common uses in the lab and plant
- Oxidation reactions
- Materials research
Handling and storage
Reported physical data: melting point 398 °C. Hazard communication follows GHS (Danger: H272, H301, H312 and H314). Our SDS lists exposure controls and first-aid measures. For transport it ships as UN UN 3086.
Order it in 250 g and 5 x 1 kg packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Specifications and identifiers
| Product name | Potassium dichromate, ≥99.8% |
|---|---|
| Catalogue number | ZX-013077 |
| CAS number | 7778-50-9 |
| IUPAC name | dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium |
| Molecular formula | Cr2K2O7 |
| Molar mass | 294.18 g/mol |
| Exact mass | 293.7728 |
| Purity / assay | ≥99.8% |
| Physical form | Crystalline |
| Appearance | Orange powder or crystals |
| Melting point | 398 °C |
| H-bond donors / acceptors | 0 / 7 |
| Topological polar surface area | 124 Ų |
| HS code | 28415090 |
| UN number | UN 3086 |
| InChIKey | KMUONIBRACKNSN-UHFFFAOYSA-N |
| SMILES | [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+] |
| PubChem CID | 24502 |
| Synonyms | Potassium bichromate, Iopezite, Bichromate of potash, Potassium dichromate(VI), Dipotassium bichromate, Dipotassium dichromate, Dichromic acid dipotassium salt, Dipotassium dichromium heptaoxide, SRM 935a, Potassium chromate (K2Cr2O7), Kali bichromicum, Potassium dichromate (K2Cr2O7) |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H272May intensify fire, oxidizer
- H301Toxic if swallowed
- H312Harmful in contact with skin
- H314Causes severe skin burns and eye damage
- H317May cause an allergic skin reaction
- H330Fatal if inhaled
- H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H340May cause genetic defects
- H350May cause cancer
- H400Very toxic to aquatic life
- H410Very toxic to aquatic life with long lasting effects
Precautionary statements P203, P210, P220, P233, P260, P261, P264, P270, P271, P272, P273, P280, P284, P301 + P316, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P318, P319, P320
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 250 g | Quoted on request | |
| 5 x 1 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Potassium dichromate, ≥99.8%
Which CAS number identifies Potassium dichromate, ≥99.8%?
Potassium dichromate, ≥99.8% is registered under CAS 7778-50-9. You may also see it listed as Potassium bichromate, Iopezite, Bichromate of potash. Our catalogue number for this item is ZX-013077.
What are the formula and molar mass of Potassium dichromate, ≥99.8%?
For Potassium dichromate, ≥99.8%, its formula is Cr2K2O7 and its molar mass is 294.18 g/mol. InChIKey KMUONIBRACKNSN-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Potassium dichromate, ≥99.8%?
This listing is ≥99.8% purity. Standard packs are 250 g, 5 x 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Potassium dichromate, ≥99.8%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Potassium dichromate, ≥99.8% to my country?
Yes. Because Potassium dichromate, ≥99.8% is classed as hazardous (UN 3086), it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
Other grades with CAS 7778-50-9
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