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Merck
CN

24-4480

Potassium dichromate

JIS special grade, ≥99.5%

Synonym(s):

Potassium bichromate

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About This Item

Linear Formula:
K2Cr2O7
CAS Number:
7778-50-9
Molecular Weight:
294.18
UNSPSC Code:
12352302
PubChem Substance ID:
329752638
EC Number:
231-906-6
MDL number:
MFCD00011367
Assay:
≥99.5%
Grade:
JIS special grade
Form:
crystalline

Key Documents

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InChI key

KMUONIBRACKNSN-UHFFFAOYSA-N

InChI

1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1

SMILES string

[K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O

grade

JIS special grade

assay

≥99.5%

form

crystalline

reaction suitability

reagent type: oxidant

availability

available only in Japan

pH

3.5-5.0 (25 °C, 29.4 g/L)

mp

398 °C (lit.)

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Related Categories

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3

target_organs

Cardio-vascular system, Respiratory system

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
U7463
U1282
U4139
U2025
U7867

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