7788-98-9

Name AMMONIUM CHROMATE
CAS 7788-98-9
EINECS(EC#) 232-138-4
Molecular Formula CrH8N2O4
MDL Number MFCD00015958
Molecular Weight 152.07
MOL File 7788-98-9.mol
show more

Chemical Properties

Appearance Ammonium chromate is a yellow crystalline compound which can be used in solution, which is yellow with an ammonia odor.
Melting point  180°C (dec.)
density  1.91 g/mL at 25 °C(lit.)
solubility  H2O: 1 M at 20 °C, clear, yellow
form  Crystalline
color  Yellow-orange
Specific Gravity 1.91
Water Solubility  Soluble in water. Slightly soluble in liquid ammonia, acetone, methanol. Insoluble in ethanol.
Merck  14,510
Exposure limits ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3
InChI 1S/Cr.2H3N.2H2O.2O/h;2*1H3;2*1H2;;/q+2;;;;;;/p-2
InChIKey FEIXNIOTSKFSAZ-UHFFFAOYSA-L
SMILES N.N.O[Cr](O)(=O)=O
CAS DataBase Reference 7788-98-9(CAS DataBase Reference)
EPA Substance Registry System Ammonium chromate (7788-98-9)

Safety Data

Hazard Codes  O,T,N
Risk Statements 
R49:May cause cancer by inhalation.
R8:Contact with combustible material may cause fire.
R43:May cause sensitization by skin contact.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S53:Avoid exposure-obtain special instruction before use .
S17:Keep away from combustible material .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR  UN 1479 5.1/PG 2
WGK Germany  3
RTECS  GB2880000
TSCA  Yes
HazardClass  5.1
PackingGroup  III
Storage Class 5.1B - Oxidizing hazardous materials
Hazard Classifications Aquatic Acute 1
Aquatic Chronic 1
Carc. 1A
Carc. 1B Inhalation
Eye Dam. 1
Ox. Sol. 2
Resp. Sens. 1
Skin Corr. 1B
Safety Profile
A poison. Mutation data reported. See also CHROMIUM COMPOUNDS. A powerful oxidizer. An explosion hazard when shocked or heated. When heated to decomposition it emits toxic fumes of NH3, Cr03, and NOx. Incompatible with reducing agents.
Hazardous Substances Data 7788-98-9(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

Spectrum Detail

Well-known Reagent Company Product Information

Supplier

Related Products

Send Inquriy