7788-98-9|Chromic acid (H2CrO4),ammonium salt (1:2)Products Supply

Chromic acid (H2CrO4),ammonium salt (1:2) cas no:7788-98-9

Synonyms: Ammoniumchromate(VI) (6CI);Chromic acid (H2CrO4), diammonium salt (8CI,9CI);Ammoniumchromate;Ammonium chromate ((NH4)2CrO4);Chromic acid ammonium salt;Diammonium chromate;Diammonium chromate ((NH4)2CrO4);Neutral ammoniumchromate;

Identification

NameChromic acid (H2CrO4),ammonium salt (1:2)
CAS7788-98-9
SynonymsAmmoniumchromate(VI) (6CI);Chromic acid (H2CrO4), diammonium salt (8CI,9CI);Ammoniumchromate;Ammonium chromate ((NH4)2CrO4);Chromic acid ammonium salt;Diammonium chromate;Diammonium chromate ((NH4)2CrO4);Neutral ammoniumchromate;
EINECS(EC#)232-138-4
Molecular FormulaCrH₂O₄. 2H₃N
Molecular Weight152.07062

Chemical Properties

AppearanceYellow crystals

Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)

Hazardclass5.1

Safety Data

Hazard Toxic by inhalation, strong irritant. TLV: TWA 0.05 mg(Cr)/m3; Confirmed Human Carcinogen.
Risk R49
Safety

Mutation data reported. When heated to decomposition it emits toxic vapors of NH₄.
Safty information about Neutral Ammonium Chromate (CAS NO.7788-98-9) :
Hazard Codes:
Oxidizing O
Toxic T
Dangerous 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 instructions before use.
S17:Keep away from combustible material.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S60:This material and its container must be disposed of as hazardous waste.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
53-17-45-60-61
RIDADR UN 1479 5.1/PG 2
WGK Germany: 3
RTECS: GB2880000
HazardClass: 5.1
PackingGroup: III

Toxicity

1.		mmo-sat 35 µg/plate		CRNGDP Carcinogenesis. 9 (1988),611.
2.		dnr-esc 25 µg/well		MUREAV Mutation Research. 133 (1984),161.

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Chromic acid (H2CrO4),ammonium salt (1:2) cas no:7788-98-9

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