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7789-12-0

Name Sodium dichromate dihydrate
CAS 7789-12-0
EINECS(EC#) 234-190-3
Molecular Formula Cr2H4Na2O9
MDL Number MFCD00149166
Molecular Weight 298
MOL File 7789-12-0.mol

Chemical Properties

Appearance Sodium chromate, including the hexahydrate, is yellow crystalline solids that can also be used in solution. Disodium dichromate (10588-01-9):
Melting point  91 °C(lit.)
Boiling point  400°C
density  2,348 g/cm3
vapor density  10 (vs air)
storage temp.  Store at +5°C to +30°C.
solubility  Methanol (Slightly, Sonicated)
form  Solid
color  Red-orange
Specific Gravity 2.348
Odor Odorless
PH Range 3.5-4.0
Water Solubility  730 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,8609
Dielectric constant 2.9(Ambient)
CAS DataBase Reference 7789-12-0(CAS DataBase Reference)
EPA Substance Registry System 7789-12-0(EPA Substance)

Safety Data

Hazard Codes  O,T+,N
Risk Statements 
R45:May cause cancer.
R60:May impair fertility.
R61:May cause harm to the unborn child.
R8:Contact with combustible material may cause fire.
R21:Harmful in contact with skin.
R25:Toxic if swallowed.
R26:Very Toxic by inhalation.
R34:Causes burns.
R42/43:May cause sensitization by inhalation and skin contact .
R48/23:Toxic: danger of serious damage to health by prolonged exposure through inhalation .
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 .
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 3086 6.1/PG 1
WGK Germany  3
RTECS  HX7750000
TSCA  Yes
HazardClass  5.1
PackingGroup  III
HS Code  28413000

Hazard Information

Material Safety Data Sheet(MSDS)

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