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104952 Potassium chromate

104952
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Overview

Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7789-00-6232-140-5CrK₂O₄K₂CrO₄194.2 g/molACS,Reag. Ph Eur

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      1049521000
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          Description
          Catalogue Number104952
          Synonymschromic acid potassium salt
          References
          Product Information
          CAS number7789-00-6
          EC index number024-006-00-8
          EC number232-140-5
          GradeACS,Reag. Ph Eur
          Hill FormulaCrK₂O₄
          Chemical formulaK₂CrO₄
          Molar Mass194.2 g/mol
          HS Code2841 50 00
          Quality LevelMQ300
          Applications
          Biological Information
          Physicochemical Information
          Density2.73 g/cm3
          Melting Point968.3 °C
          pH value8.5 - 10.0 (50 g/l, H₂O, 20 °C)
          Bulk density1400 kg/m3
          Solubility637 g/l
          Dimensions
          Materials Information
          Toxicological Information
          Safety Information according to GHS
          Hazard Pictogram(s) Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Statement(s)H315: Causes skin irritation.
          H317: May cause an allergic skin reaction.
          H319: Causes serious eye irritation.
          H335: May cause respiratory irritation.
          H340: May cause genetic defects.
          H350i: May cause cancer by inhalation.
          H410: Very toxic to aquatic life with long lasting effects.
          Precautionary Statement(s)P202: Do not handle until all safety precautions have been read and understood.
          P273: Avoid release to the environment.
          P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
          P302 + P352: IF ON SKIN: Wash with plenty of water.
          P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
          P308 + P313: IF exposed or concerned: Get medical advice/ attention.
          Signal WordDanger
          Storage class6.1B Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
          WGKWGK 3 highly hazardous to water
          Disposal22
          Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.
          Safety Information
          Categories of dangercarcinogenic, mutagenic, irritant, sensitizing, dangerous for the environment
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +2°C to +30°C.
          Packaging Information
          Transport Information
          Declaration (railroad and road) ADR, RIDUN 3288 , 6.1, II
          Declaration (transport by air) IATA-DGRUN 3288 , 6.1, II
          Declaration (transport by sea) IMDG-CodeUN 3288 , 6.1, II
          Supplemental Information
          Specifications
          Assay (iodometric)≥ 99.5 %
          In water insoluble matter≤ 0.005 %
          pH-value (5 %; water)9.0 - 9.8
          Chloride (Cl)≤ 0.001 %
          Sulfate (SO₄)≤ 0.01 %
          Ca (Calcium)≤ 0.005 %
          Na (Sodium)≤ 0.02 %
          Pb (Lead)≤ 0.005 %

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