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20039-37-6

Name Pyridinium dichromate
CAS 20039-37-6
EINECS(EC#) 243-478-8
Molecular Formula C10H12Cr2N2O7
MDL Number MFCD00013105
Molecular Weight 376.2
MOL File 20039-37-6.mol
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Chemical Properties

Appearance Orange solid
Melting point  152-153 °C(lit.)
density  1.71[at 20℃]
vapor pressure  0Pa at 25℃
storage temp.  Store at RT.
form  Crystalline Powder
color  Orange to brown
Water Solubility  soluble
Sensitive  Hygroscopic
Exposure limits OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3
InChIKey BNSOYWDFFBDEFB-UHFFFAOYSA-L
LogP -3.7 at 20℃
Uses
Pyridinium dichromate is an orange colored solid used as an oxidizing agent.
Oxidizing agent for conversion of primary alcohols to aldehydes and ketones, acetals to esters, and didehydroketones to enones in the presence of tert-butyl hydroperoxide.
CAS DataBase Reference 20039-37-6(CAS DataBase Reference)
EPA Substance Registry System 20039-37-6(EPA Substance)

Safety Data

Hazard Codes  O,T,N,Xn
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 .
R61:May cause harm to the unborn child.
R60:May impair fertility.
R45:May cause cancer.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R40:Limited evidence of a carcinogenic effect.
R36/37/38:Irritating to eyes, respiratory system and skin .
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 .
S37:Wear suitable gloves .
S29:Do not empty into drains .
S24:Avoid contact with skin .
S17:Keep away from combustible material .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S27:Take off immediately all contaminated clothing .
S22:Do not breathe dust .
RIDADR  UN 1479 5.1/PG 2
WGK Germany  2
F  3
TSCA  Yes
HazardClass  5.1
PackingGroup  II
HS Code  29333100

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