Ammonium chromate supplier | CasNO.7788-98-9

Name
Ammonium chromate
EINECS 232-138-4
CAS No. 7788-98-9
Density 1.91 g/mL at 25 °C(lit.)
Solubility Soluble in water: 1 M at 20 °C
Melting Point 180 °C (dec.)
Formula CrH₂O₄. 2H₃N
Boiling Point
Molecular Weight 152.10
Flash Point
Transport Information UN 1479 5.1/PG 2
Appearance Yellow crystals
Safety 53-17-45-60-61
Risk Codes 49-8-43-50/53
Molecular Structure
Hazard Symbols O,T,N
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;
PSA 81.08000
LogP 0.05660

Ammonium chromate Chemical Properties

Chemistry informtion about Neutral Ammonium Chromate (CAS NO.7788-98-9) is:
IUPAC Name: Diazanium Dioxido(Dioxo)Chromium
Synonyms: Ammoniumchromate(Vi) ; Chromicacid(H2cro4),Diammoniumsalt ; Chromicacid[H2cro4],Diammoniumsalt ; Diammoniumchromate ; Neutralammoniumchromate ; Ammonium Chromate ; Ammonium Chronate ; Ammoniumdichromate,>99%
Product Categories: Inorganic Chemicals ; Ammonium Salts ; Metal and Ceramic Science ; Salts
MF: CrH₈N₂O₄
MW: 152.07
EINECS: 232-138-4
Melting Point: 180°C (dec.)
Density: 1.91 g/mL at 25 °C(lit.)
Merck: 14,510
Following is the molecular structure of Neutral Ammonium Chromate (CAS NO.7788-98-9) is:

Ammonium chromate Production

Preparation Products is Furfuryl alcohol .And Raw materials are Ammonia --> Chromic acid --> Potassium sulfate --> Potassium chromate --> Ammonium dichromate .

Ammonium chromate Toxicity Data With Reference

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

Ammonium chromate Consensus Reports

Reported in EPA TSCA Inventory.

Ammonium chromate Safety Profile

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

Ammonium chromate Standards and Recommendations

OSHA PEL: CL 0.1 mg(CrO₃)/m³
ACGIH TLV: TWA 0.05 mg(Cr)/m³
NIOSH REL: (Chromium(VI)): TWA 0.001 mg(Cr)/m³

Ammonium chromate Analytical Methods

For occupational chemical analysis use NIOSH: chromium hexavalent 7024.

Ammonium chromate Specification

To protect yourself,you can put on eyeshields, faceshields, full-face particle respirator type N100 (US), gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges .

Product Name

Ammonium chromate