- 402826
402826
Ammonium dichromate
ACS reagent, ≥99.5%
Recommended Products
grade
ACS reagent
Quality Level
vapor density
8.7 (vs air)
Assay
≥99.5%
form
crystals
reaction suitability
reagent type: oxidant
impurities
≤0.005% insolubles
loss
≤3.0% loss on drying
pH
3-4 (25 °C, 50 g/L)
mp
170 °C (dec.) (lit.)
anion traces
chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.01%
cation traces
Ca: ≤0.002%
Fe: ≤0.002%
Na: ≤0.005%
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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This Item | 248614 | 207802 | 450138 |
|---|---|---|---|
| grade ACS reagent | grade ACS reagent | grade ACS reagent | grade - |
| assay ≥99.5% | assay ≥98.0% | assay ≥99.0% | assay 99.999% trace metals basis |
| form crystals | form chunks or granules, powder or crystals | form crystals | form crystalline |
| impurities ≤0.005% insolubles | impurities ≤0.005% insolubles, ≤0.04 meq/g Titr. acid | impurities ≤0.005% insolubles | impurities ≤15.0 ppm Trace Metal Analysis |
| pH 3-4 (25 °C, 50 g/L) | pH 1-2 (25 °C, 228 g/L) | pH 3.5-5.0 (25 °C, 29.4 g/L) | pH - |
| mp 170 °C (dec.) (lit.) | mp - | mp 398 °C (lit.) | mp 170 °C (dec.) (lit.) |
General description
Application
- Oxidation of alcohols in the presence of Mg(HSO4)2 (magnesium hydrogen sulfate) and wet SiO2 (silicon dixide).
- Preparation of Cr2O3/Al2O3 (chromium (III) oxide/aluminium oxide) catalysts.
- Oxidative coupling of thiols.
- Preparation of mesoporous molecular sieves.
- Preparation of polypyrrole (PPy).
- Preparation of solid oxide fuel cell (SOFC) interconnect.
Signal Word
Danger
Precautionary Statements
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 Code
4.1A - Other explosive hazardous materials
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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