Industrial Chromium(III) Nitrate Nonahydrate Cr(NO3)3·9H2O Purple-Red Crystals for 98% or 99% Grade Enquiry
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Physical formCrystalline
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CAS No.7789-02-8Purity98%,99%
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Appearancepurple red crystalApplicationindustria
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ClassificationNitrate, NitrateEINECS No.231-157-5, 231-157-5
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Grade StandardIndustrial GradeMolecular FormulaCr(NO3)3·9H2O
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Other NamesChromium Nitrate NonahydrateTypeChromium Nitrate
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MFCr(NO3)3·9H2OContent/purity99%
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Molecular weight400.15Melting Point60℃
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PACKAGE25kg/bag
Chromium(III) nitrate nonahydrate identity and assay-grade selection are separate parts of this enquiry. The industrial material is identified as Cr(NO3)3·9H2O, CAS 7789-02-8, and described as purple-red crystals, with 98% and 99% grade descriptions requiring an actual offered-grade confirmation.
Specify the assay grade before assessing the crystals
State which assay requirement the industrial project needs and request confirmation of the material being offered. The two descriptions do not select a grade automatically, so a general 99% reference should not replace an explicit grade agreement.
Use a current COA for the nonahydrate actually offered
Obtain a certificate of analysis identifying the nonahydrate and its analytical method and reporting basis. Include the individual impurities and physical measurements relevant to the project, ensuring that the report describes the material proposed for sample evaluation.
- Confirm the required and offered assay grade.
- Review current nonahydrate analysis and project-relevant impurities.
- Assess appropriate sample evidence against the actual industrial criteria.
Keep the listed thermal descriptor within its limits
A melting-point descriptor of 60°C is listed for the material. This figure does not establish a storage instruction or an operating window, and the actual duty needs its corresponding technical and safety documentation.
Describe the intended industrial material role when requesting qualification information. The nonahydrate name and purple-red appearance do not establish specialized grade approval or process performance; acceptance should follow the confirmed assay grade, current analytical record and evidence relevant to that actual application.
