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Chloranil

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Chloranil Basic information

Product Name:
Chloranil
CAS:
118-75-2
MF:
C6Cl4O2
MW:
245.88
EINECS:
204-274-4
Mol File:
118-75-2.mol
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Chloranil Chemical Properties

Melting point:
295-296 °C (dec.)
Boiling point:
290.07°C (rough estimate)
Density 
1,97 g/cm3
vapor pressure 
1 hPa (71 °C)
Flash point:
>100℃
storage temp. 
Store below +30°C.
solubility 
0.25g/l practically insoluble
form 
Liquid
color 
Clear
Specific Gravity
1.97
PH
3.5-4.5 (100g/l, H2O, 20℃)(slurry)
Water Solubility 
insoluble
λmax
510nm(CH2Cl2)(lit.)
Merck 
14,2078
BRN 
393006
CAS DataBase Reference
118-75-2(CAS DataBase Reference)
NIST Chemistry Reference
p-Benzoquinone, 2,3,5,6-tetrachloro-(118-75-2)
EPA Substance Registry System
Chloranil (118-75-2)
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Safety Information

Hazard Codes 
Xi,N,Xn
Risk Statements 
36/38-50/53-20
Safety Statements 
37-60-61-22
RIDADR 
UN 3077 9/PG 3
WGK Germany 
2
RTECS 
DK6825000
8
Autoignition Temperature
>400 °C
TSCA 
Yes
HazardClass 
9
PackingGroup 
III
HS Code 
29147090
Hazardous Substances Data
118-75-2(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 4000 mg/kg

MSDS

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Chloranil Usage And Synthesis

Chemical Properties

YELLOW-GREEN POWDER

Uses

antipsoriatic

Uses

Tetrachloro-1,4-benzoquinone is a potential intermediate in the process of pentachlorophenol-induced carcinogenicity.

Uses

Agricultural fungicide, dye intermediate, reagent. manufacture of electrodes for pH measurement.

Definition

ChEBI: A member of the class of 1,4-benzoquiones that is 1,4-benzoquinone in which all four hydrogens are substituted by chlorines.

General Description

Yellow powder with a slight odor.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Chloranil is sensitive to excessive light and heat. Chloranil is incompatible with strong oxidizing agents. Chloranil reacts with alkalis.

Hazard

Skin irritant.

Fire Hazard

Flash point data for Chloranil are not available; however, Chloranil is probably combustible.

Purification Methods

Crystallise p-chloranil from acetic acid, acetone, *benzene, EtOH or toluene, dry it in a vacuum over P2O5, or from acetic acid and drying over NaOH in a vacuum desiccator. It can be sublimed under vacuum at 290o. A sample may contain significant amounts of the o-chloranil isomer as impurity. Purify it by triple sublimation under vacuum and recrystallise before use. It is a skin and mucous membrane irritant. [UV: Pummerer et al. Chem Ber 85 545 1952, Brook J Chem Soc 5040 1952, Beilstein 7 IV 2083.]

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Wuhan Greatwall chemical Co,.LTD Gold
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J & K SCIENTIFIC LTD.
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Meryer (Shanghai) Chemical Technology Co., Ltd.
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Alfa Aesar
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400-610-6006; 021-67582000
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saleschina@alfa-asia.com
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