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01-4640

Ammonium dichromate

SAJ first grade, ≥98.5%

Synonym(s):

Ammonium bichromate

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About This Item

Linear Formula:
(NH4)2Cr2O7
CAS Number:
7789-09-5
Molecular Weight:
252.06
EC Number:
232-143-1
UNSPSC Code:
12352300
MDL number:
MFCD00010879
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grade

SAJ first grade

vapor density

8.7 (vs air)

assay

≥98.5%

availability

available only in Japan

mp

170 °C (dec.) (lit.)

SMILES string

N.N.O[Cr](=O)(=O)O[Cr](O)(=O)=O

InChI

1S/2Cr.2H3N.2H2O.5O/h;;2*1H3;2*1H2;;;;;/q2*+1;;;;;;;;;/p-2

InChI key

XAQCJVGGJJFLPP-UHFFFAOYSA-L

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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

Storage Class

4.1A - Other explosive 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
U6359
U7053
U3750
U0862
U0455

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Investigation and prevention of chromate dermatitis in colour television manufacture.
C J Stevenson et al.
The Journal of the Society of Occupational Medicine, 33(1), 19-20 (1983-01-01)
S A Ali
American journal of contact dermatitis : official journal of the American Contact Dermatitis Society, 8(4), 222-224 (1998-01-07)
An outbreak of dermatitis occurred in the Flow Coat sector of a large and modern color television factory. After investigating the working procedures in this area, a risk of contamination of the skin and clothing with ammonium dichromate was found
Chromate in colour television tube manufacture.
S Sinclair et al.
Contact dermatitis, 21(5), 353-353 (1989-11-01)
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