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Merck 104952 1000 Potassium Chromate Gr For Analysis 1 KG.
Merck 104952 1000 Potassium Chromate Gr For Analysis 1 KG.

Merck 104952 1000 Potassium Chromate Gr For Analysis 1 KG.

Ürün Kodu:1049521000
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Ürün Açıklaması
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Description
Catalogue Number104952
Synonymschromic acid potassium salt
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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
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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
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Safety Information according to GHS
Hazard Pictogram(s)Hazard Pictogram(s)\nHazard Pictogram(s)\nHazard Pictogram(s)\n
Hazard Statement(s)H315: Causes skin irritation.\nH317: May cause an allergic skin reaction.\nH319: Causes serious eye irritation.\nH335: May cause respiratory irritation.\nH340: May cause genetic defects.\nH350i: May cause cancer by inhalation.\nH410: 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.\nP273: Avoid release to the environment.\nP280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.\nP302 + P352: IF ON SKIN: Wash with plenty of water.\nP305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.\nP308 + P313: IF exposed or concerned: Get medical advice/ attention.
Signal WordDanger
Storage class6.1D Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGKWGK 3 highly hazardous to water
Disposal22\nInorganic 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.
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Safety Information
Categories of dangercarcinogenic, mutagenic, irritant, sensitizing, dangerous for the environment
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Storage and Shipping Information
StorageStore at +2°C to +30°C.
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Transport Information
Declaration (railroad and road) ADR, RIDUN 3077 , 9, III
Declaration (transport by air) IATA-DGRUN 3077 , 9, III
Declaration (transport by sea) IMDG-CodeUN 3077 , 9, III, Marine Pollutant: P
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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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