Basic Information | Post buying leads | Suppliers |
Name |
Ammonium chromate |
EINECS | 232-138-4 |
CAS No. | 7788-98-9 | Density | 1.91 g/mL at 25 °C(lit.) |
PSA | 81.08000 | LogP | 0.05660 |
Solubility | Soluble in water: 1 M at 20 °C | Melting Point |
180 °C (dec.) |
Formula | CrH2O4. 2H3N | Boiling Point | N/A |
Molecular Weight | 152.10 | Flash Point | N/A |
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; |
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:
Preparation Products is Furfuryl alcohol .And Raw materials are Ammonia --> Chromic acid --> Potassium sulfate --> Potassium chromate --> Ammonium dichromate .
1. | mmo-sat 35 µg/plate | CRNGDP Carcinogenesis. 9 (1988),611. | ||
2. | dnr-esc 25 µg/well | MUREAV Mutation Research. 133 (1984),161. |
Reported in EPA TSCA Inventory.
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:
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 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
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
For occupational chemical analysis use NIOSH: chromium hexavalent 7024.
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 .