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| CAS No.: | 156-59-2 |
|---|---|
| Name: | CIS-1,2-DICHLOROETHYLENE |
| Article Data: | 81 |
| Molecular Structure: | |
|
|
|
| Formula: | C2H2 Cl2 |
| Molecular Weight: | 96.9439 |
| Synonyms: | Ethene,1,2-dichloro-, (Z)-; Ethylene, 1,2-dichloro-, (Z)- (8CI);(Z)-1,2-Dichloroethene; (Z)-1,2-Dichloroethylene; 1,2-cis-Dichloroethene;1,2-cis-Dichloroethylene; HCC 1130c; R 1130c; cis-1,2-Dichlorethylene;cis-1,2-Dichloroethene; cis-1,2-Dichloroethylene; cis-Dichloroethene;cis-Dichloroethylene |
| Density: | 1.284 g/mL at 25 °C(lit.) |
| Melting Point: | -80oC(lit.) |
| Boiling Point: | 60 °C(lit.) |
| Flash Point: | 43 °F |
| Solubility: | 3.5g/L(25 oC) |
| Hazard Symbols: |
 F, Xn, T
|
| Risk Codes: | R11; R20; R52/53 |
| Safety: | Mildly toxic by ingestion and inhalation. In high concentration it is irritating and narcotic. Has produced liver and kidney injury in experimental animals. Mutation data reported. Sometimes thought to be nonflammable, however, it is a dangerous fire hazard when exposed to heat or flame. Reaction with solid caustic alkalies or their concentrated solutions produces chloracetylene gas, which ignites spontaneously in air. Reacts violently with N2O4, KOH, Na, NaOH. Moderate explosion hazard in the form of vapor when exposed to flame. Can react vigorously with oxidizing materials. To fight fire, use water spray, foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of Cl−. See also VINYLIDENE CHLORIDE and CHLORINATED HYDROCARBONS, ALIPHATIC. |
| PSA: | 0.00000 |
| LogP: | 1.93520 |
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Chemistry
Molecular Structure of cis-Dichloroethylene (CAS NO. 156-59-2):
EINECS: 205-859-7
IUPAC Name: (Z)-1,2-Dichloroethene
Molecular Formula: C2H2Cl2
Molecular Weight: 96.943280 g/mol
XLogP3: 1.9
H-Bond Donor: 0
H-Bond Acceptor: 0
Canonical SMILES: C(=CCl)Cl
Isomeric SMILES: C(=C\Cl)\Cl
InChI: InChI=1S/C2H2Cl2/c3-1-2-4/h1-2H/b2-1-
InChIKey: KFUSEUYYWQURPO-UPHRSURJSA-N
Index of Refraction: 1.453
Molar Refractivity: 21.07 cm3
Molar Volume: 77.9 cm3
Surface Tension: 25.9 dyne/cm
Density: 1.243 g/cm3
Flash Point: 6.1 °C
Enthalpy of Vaporization: 27.93 kJ/mol
Boiling Point: 47.7 °C at 760 mmHg
Vapour Pressure: 333 mmHg at 25 °C
Melting Point: -80 °C(lit.)
Water Solubility: 1958 mg/L at 25 °C
Refractive Index: n20/D 1.449(lit.)
Storage Temp.: 0-60 °C
Toxicity Data With Reference
| 1. | mmo-smc 100 mmol/L | TCMUD8 Teratogenesis, Carcinogenesis, and Mutagenesis. 4 (1984),365. | ||
| 2. | mma-smc 40 mmol/L | TCMUD8 Teratogenesis, Carcinogenesis, and Mutagenesis. 4 (1984),365. | ||
| 3. | mrc-smc 100 mmol/L | TCMUD8 Teratogenesis, Carcinogenesis, and Mutagenesis. 4 (1984),365. | ||
| 4. | dns-rat:lvr 4300 µmol/L | CRNGDP Carcinogenesis. 5 (1984),1629. | ||
| 5. | ihl-mus LCLo:65,000 mg/m3/2H | AHBAAM Archiv fuer Hygiene und Bakteriologie. 116 (1936),131. | ||
| 6. | ihl-cat LCLo:20,000 mg/m3/6H | AHBAAM Archiv fuer Hygiene und Bakteriologie. 116 (1936),131. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Safety Information of cis-Dichloroethylene (CAS NO. 156-59-2):
Hazard Codes: F 
,Xn 
,T 
Risk Statements: 11-20-52/53-39-23/24/25
R11:Highly flammable
R20:Harmful by inhalation
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment
R39:Danger of very serious irreversible effects
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed
Safety Statements: 7-16-29-61-45-36/37
S7:Keep container tightly closed
S16:Keep away from sources of ignition
S29:Do not empty into drains
S61:Avoid release to the environment. Refer to special instructions / safety data sheets
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S36/37:Wear suitable protective clothing and gloves
RIDADR: UN 1150 3/PG 2
WGK Germany: 2
RTECS: KV9420000
F: 1-8-10
HazardClass: 3.1
PackingGroup: II
Mildly toxic by ingestion and inhalation. In high concentration it is irritating and narcotic. Has produced liver and kidney injury in experimental animals. Mutation data reported. Sometimes thought to be nonflammable, however, it is a dangerous fire hazard when exposed to heat or flame. Reaction with solid caustic alkalies or their concentrated solutions produces chloracetylene gas, which ignites spontaneously in air. Reacts violently with N2O4, KOH, Na, NaOH. Moderate explosion hazard in the form of vapor when exposed to flame. Can react vigorously with oxidizing materials. To fight fire, use water spray, foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of Cl−. See also VINYLIDENE CHLORIDE and CHLORINATED HYDROCARBONS, ALIPHATIC.
Standards and Recommendations
DFG MAK: 200 ppm (800 mg/m3)
Specification
cis-Dichloroethylene with cas registry number of 156-59-2 is colorless clear liquid, also called for 1,2-Dichloroethylene, all isomers ; (Z)-1,2-Dichloroethene ; (Z)-1,2-Dichloroethylene ; 4-01-00-00707 (Beilstein Handbook Reference) ; AI3-28863 ; Acetalyne dichloride ; Acetylene dichloride, cis- ; CCRIS 4605 ; Ethene, 1,2-dichloro-, (Z)- ; Ethylene, 1,2-dichloro-, (Z)- ; Ethene, 1,2-dichloro-, (1Z)- ; Ethene, 1,2-dichloro-, (Z)- (9CI) ; HCC 1130c ; HSDB 5656 ; NSC 6149 ; R 1130c ; cis-1,2-Dichloroethene ; cis-1,2-Dichloroethylene . It is incompatible with moist air or water, bases. When heated to decomposition, it yields Hydrogen chloride , Carbon monoxide , Carbon dioxide .