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Chromium - ≥99.5% metals basis, Powder , CAS No.7440-47-3
AVAILABLE TO ORDER
Storage
Room temperature
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Why this grade
≥99.5% metals basis, Powder for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Storage & shipping
Room temperature Ships Check lot-specific COA for exact specifications.
Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Literature proof
Cited in 93 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
Application
Chromium powder can be used in the microwave assisted synthesis of a bis(toluene)chromium boron complex, [Cr(η-C 6 H 5 CH 3 ) 2 ] + (BPh 4 ) - . It can also be used in the solid-state synthesis of chromium sulfide.
Specifications
Specifications & Purity
≥99.5% metals basis, Powder
Storage
Room temperature
Purity
≥99.5% metals basis
Names and Identifiers
Isomeric SMILES
[Cr]
WGK Germany
3
RTECS
GB4200000
PubChem CID
23976
UN Number
1759
Packing Group
I
Molecular Weight
52
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3✅ Certificate of Analysis (COA)
Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →🔬 Specification Sheet
Full quality attributes and acceptance criteria for this grade.
View spec sheet →Advanced Data
Certificates (CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 H2615261 | Certificate of Analysis | Aug 25, 2026 | C434740 |
| H2615262 | Certificate of Analysis | Aug 25, 2026 | C434740 |
| H2501012 | Certificate of Analysis | Aug 12, 2025 | C434740 |
| G2524023 | Certificate of Analysis | Jul 28, 2025 | C434740 |
| D2416092 | Certificate of Analysis | May 08, 2024 | C434740 |
Chemical and Physical Properties
| Sensitivity | air sensitive |
|---|---|
| x_boil_point_char | 2480°C |
| x_melt_point_char | 1890°C |
Citations of This Product
Solution Calculators
Reviews
Customer Reviews
Frequently Asked Questions
What does the trace-metals specification mean?
This product is specified at ≥99.5% on a trace-metals basis. That figure describes metallic impurity content rather than overall chemical assay, so it is the relevant specification for ICP-MS, semiconductor and battery applications. Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at room temperature.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 7440-47-3, the molecular formula is Cr, and the molecular weight is 52 g/mol.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.
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