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104865 重鉻酸鉀

GR for analysis (max. 0.000001% Hg) EMSURE® ACS,ISO

重鉻酸鉀 MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: Potassium bichromate, Potassium pyrochromate

CAS #: 7778-50-9 EC Number: 231-906-6 Molar Mass: 294.18 g/mol Chemical Formula: K₂Cr₂O₇ Hill Formula: Cr₂K₂O₇ Grade: ACS,ISO
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104865
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Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7778-50-9231-906-6Cr₂K₂O₇K₂Cr₂O₇294.18 g/molACS,ISO

Products

Catalogue NumberPackaging Qty/Pack
1.04865.0500 玻璃瓶 500 g
Description
Catalogue Number104865
SynonymsPotassium bichromate, Potassium pyrochromate
References
Product Information
CAS number7778-50-9
EC index number024-002-00-6
EC number231-906-6
GradeACS,ISO
Hill FormulaCr₂K₂O₇
Chemical formulaK₂Cr₂O₇
Molar Mass294.18 g/mol
HS Code2841 50 14
Quality LevelMQ300
Applications
Biological Information
Physicochemical Information
Boiling point>500 °C (1013 hPa)
Density2.680 g/cm3 (20 °C)
Melting Point390 °C
pH value3.5 - 5.0 (29.4 g/l, H₂O, 25 °C)
Bulk density1250 kg/m3
Solubility115 g/l
Dimensions
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 90.5 mg/kg
LD 50 dermalLD50 Rat 1170 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s)H272: May intensify fire; oxidizer.
H301: Toxic if swallowed.
H312: Harmful in contact with skin.
H314: Causes severe skin burns and eye damage.
H317: May cause an allergic skin reaction.
H330: Fatal if inhaled.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H335: May cause respiratory irritation.
H340: May cause genetic defects.
H350: May cause cancer.
H360FD: May damage fertility. May damage the unborn child.
H372: Causes damage to organs through prolonged or repeated exposure if inhaled.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s)P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P260: Do not breathe dust.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal WordDanger
RTECSHX7680000
Storage class5.1B Oxidizing 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, toxic for reproduction, oxidizing, very toxic, corrosive, 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 3086 , 6.1 (5.1), II
Declaration (transport by air) IATA-DGRUN 3086 , 6.1 (5.1), II
Declaration (transport by sea) IMDG-CodeUN 3086 , 6.1 (5.1), II
Supplemental Information
Specifications
Assay (iodometric)≥ 99.9 %
Insoluble matter≤ 0.005 %
Chloride (Cl)≤ 0.001 %
Sulfate (SO₄)≤ 0.005 %
Ca (Calcium)≤ 0.002 %
Cu (Copper)≤ 0.001 %
Fe (Iron)≤ 0.001 %
Hg (Mercury)≤ 0.000001 %
Na (Sodium)≤ 0.02 %
Pb (Lead)≤ 0.005 %
Loss on Drying (105 °C)≤ 0.05 %
Global Trade Item Number
Catalogue Number GTIN
1.04865.0500 04022536055886