Cr2H8N2O7
252.07 g/mol
Industrial ChemicalDanger
AMMONIUM DICHROMATE
CAS7789-09-5EC232-143-1
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
Petroleum production and refining
Ammonium dichromate is an inorganic salt used primarily in petroleum production and refining. It also finds application in leather tanning, wood preservation, and photographic processing.
Petroleum production and refiningLeather tanning and processingWood preservation
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Controlled substances
Substances on this list are tightly controlled under chemical-weapons or precursor regulations. ChemAbout does not facilitate their procurement; this page is a compliance reference only.
Relevant lists:CN Explosive Precursor Chemicals
CAS 7789-09-5
Related Compounds
StrongStructure SimilarSimilarity 1.00
Ammonium metavanadate
CAS7803-55-6
vanadium purification intermediate and catalyst precursor
StrongStructure SimilarSimilarity 1.00
Ammonium perrhenate
CAS13598-65-7
commercial form of rhenium
StrongStructure SimilarSimilarity 1.00
Ammonium nitrate
CAS6484-52-2
Fertilizer and explosive manufacturing
StrongStructure SimilarSimilarity 1.00
Ammonium chromate
CAS7788-98-9
Photography and textile printing reagent
ReferenceSame Category
Cesium nitrate
CAS7789-18-6
Used to make other cesium salts
ReferenceSame Category
Fluorosulfonic acid
CAS7789-21-1
Fluorinating agent and catalyst
ReferenceSame Category
Potassium fluoride
CAS7789-23-3
Silver soldering fluxes and glass etching
ReferenceSame Category
Potassium bifluoride
CAS7789-29-9
etchant for glass
Safety Reference
Danger
H272May intensify fire; oxidizer
H301Toxic if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H330Fatal if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H340May cause genetic defects
H350May cause cancer
H372Causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H318Causes serious eye damage
H360May damage fertility or the unborn child
H300Fatal if swallowed
H311Toxic in contact with skin
H370Causes damage to organs
H341Suspected of causing genetic defects
Regulatory Compliance5
Customs Tariff Classification
The international HS code for AMMONIUM DICHROMATE (CAS 7789-09-5) is 2841.50.
HS code (international, 6-digit)
2841.50
EU CN code (8-digit)
2841 50 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
InChIKey
JOSWYUNQBRPBDN-UHFFFAOYSA-P
SMILES
[NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-]
Synonyms (27)
- AMMONIUM DICHROMATE
- Ammonio (bicromato di)
- Ammonio (dicromato di)
- Ammonium (dichromate d')
- Ammonium bichromate
- Ammonium dichromate(VI)
- Ammonium dichromate-crystal
- Ammoniumbichromaat
- Ammoniumbichromaat [Dutch]
- Ammoniumdichromaat
- Ammoniumdichromaat [Dutch]
- Ammoniumdichromat
- Ammoniumdichromat [German]
- Bichromate d'ammonium
- Diammonium dichromate