Millipore Sigma Vibrant Logo
Attention: We have moved. Merck Millipore products are no longer available for purchase on MerckMillipore.com.Learn More

104864 Potassium dichromate

Overview

Replacement Information
Replacement InformationIn North America 104864.0500 replaces and is identical to PX1445-1

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7778-50-9231-906-6Cr₂K₂O₇K₂Cr₂O₇294.19 g/molACS,ISO,Reag. Ph Eur

Products

Catalogue NumberPackaging Qty/Pack
1048640500 Plastic bottle 500 g
1048641000 Plastic bottle 1 kg
Description
Catalogue Number104864
ReplacesPX1445-2; PX1445
SynonymsPotassium bichromate, Potassium pyrochromate
References
Product Information
CAS number7778-50-9
EC index number024-002-00-6
EC number231-906-6
GradeACS,ISO,Reag. Ph Eur
Hill FormulaCr₂K₂O₇
Chemical formulaK₂Cr₂O₇
Molar Mass294.19 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 3087 , 5.1 (6.1), II
Declaration (transport by air) IATA-DGRUN 3087 , 5.1 (6.1), II
Declaration (transport by sea) IMDG-CodeUN 3087 , 5.1 (6.1), II
Supplemental Information
Specifications
Assay (iodometric, calc. on dried substance)≥ 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 %
Na (Sodium)≤ 0.02 %
Pb (Lead)≤ 0.005 %
Loss on drying (130 °C)≤ 0.05 %
Global Trade Item Number
Catalogue Number GTIN
1048640500 04022536055800
1048641000 04022536055824