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102403 重鉻酸鉀二級標準品

Potassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur® Reag. USP. Potassium dichromate CAS No. 7778-50-9, EC Number 231-906-6.

重鉻酸鉀二級標準品 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: Reag. USP
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102403
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Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7778-50-9231-906-6Cr₂K₂O₇K₂Cr₂O₇294.18 g/molReag. USP

Products

Catalogue NumberPackaging Qty/Pack
1.02403.0080 玻璃瓶 80 g
1.02403.0083 玻璃瓶 80 g
Description
Catalogue Number102403
SynonymsPotassium bichromate, Potassium pyrochromate
References
Product Information
CAS number7778-50-9
EC index number024-002-00-6
EC number231-906-6
GradeReag. USP
Hill FormulaCr₂K₂O₇
Chemical formulaK₂Cr₂O₇
Molar Mass294.18 g/mol
HS Code2841 50 00
Quality LevelMQ300
Applications
ApplicationPotassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur® Reag. USP. Potassium dichromate CAS No. 7778-50-9, EC Number 231-906-6.
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 +15°C to +25°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
Global Trade Item Number
Catalogue Number GTIN
1.02403.0080 04022536555799
1.02403.0083 04054839650543

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Categories

Analytics and Sample Preparation > Reference Materials > Certipur® Volumetric Standards > for Redox Titration
Reagents, Chemicals and Labware > Inorganic Reagents > Instrumental Inorganic Analysis > Certipur® Standards, Reference Materials and Buffers > Certipur® Volumetric Standards > for Redox Titration