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VINYLIDENE CHLORIDE

Product Name
VINYLIDENE CHLORIDE
CAS No.
75-35-4
Chemical Name
VINYLIDENE CHLORIDE
Synonyms
1,1-DICHLOROETHENE;1,1-DICHLOROETHYLENE;VDC;vinylidene;Vinylidine chloride;1,1-Dichlorethen;1,1-Dichlorethylen;Ethene,1,1-dichloro-;1,1-dichloroethylene vinylidene chloride;ized
CBNumber
CB8292656
Molecular Formula
C2H2Cl2
Formula Weight
96.94
MOL File
75-35-4.mol
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VINYLIDENE CHLORIDE Property

Melting point:
-122 °C (lit.)
Boiling point:
30-32 °C (lit.)
Density 
1.213 g/mL at 20 °C (lit.)
vapor density 
3.46 (vs air)
vapor pressure 
9.68 psi ( 20 °C)
refractive index 
n20/D 1.426
Flash point:
−9 °F
storage temp. 
Store at +2°C to +8°C.
solubility 
2.5g/l
form 
Liquid
color 
Clear colorless
explosive limit
8.4-16.5%(V)
Water Solubility 
Soluble in water (2.5g/L at 20°C).
Sensitive 
Light Sensitive
Merck 
14,9996
BRN 
1733365
Henry's Law Constant
0.86, 1.00, 1.27, 1.97, and 2.66 at 2.0, 6.0, 10.0, 18.0, and 25.0 °C, respectively (EPICS-SPME, Dewulf et al., 1999)
Exposure limits
TLV-TWA 5 ppm (~20 mg/m3) (ACGIH); TLV-STEL 20 ppm (ACGIH); carcinogenic ity: Animal Limited Evidence, Human Inad equate Evidence (IARC).
Dielectric constant
4.7(16℃)
Stability:
Stable. Very flammable - note low flash point. Vapour may travel considerable distances to a source of ignition. Incompatible with strong oxidizing agents, alcohols, halides, sopper, aluminium. Rapidly absorbs oxygen from the air and forms explosive peroxides. Light and water promote self-polymerisation. May form explosive mix
CAS DataBase Reference
75-35-4(CAS DataBase Reference)
IARC
2B (Vol. 39, Sup 7, 71, 119) 2019
EPA Substance Registry System
1,1-Dichloroethylene (75-35-4)
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Safety

Hazard Codes 
F+,Xn,T,F
Risk Statements 
12-20-40-39/23/24/25-23/24/25-11
Safety Statements 
7-16-29-36/37-46-45
RIDADR 
UN 1303 3/PG 1
WGK Germany 
3
RTECS 
KV9275000
1-8-10
Autoignition Temperature
968 °F
TSCA 
Yes
HS Code 
2903 29 00
HazardClass 
3
PackingGroup 
I
Hazardous Substances Data
75-35-4(Hazardous Substances Data)
Toxicity
Acute oral LD50 for rats 1,550 mg/kg, male mice 194 mg/kg, female mice 217 mg/kg (Jones and Hathway, 1978):dogs 5,750 mg/kg (Tierney et al., 1979). Heitmuller et al. (1981) reported a NOEC of 80 ppm.
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H224Extremely flammable liquid and vapour

H301Toxic if swalloed

H319Causes serious eye irritation

H332Harmful if inhaled

H351Suspected of causing cancer

H372Causes damage to organs through prolonged or repeated exposure

H373May cause damage to organs through prolonged or repeated exposure

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P273Avoid release to the environment.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.03209
Product name
1,1-Dichloroethylene
Purity
(stabilised with hydroquinone monomethyl ether) for synthesis
Packaging
100mL
Price
$40.9
Updated
2024/03/01
Sigma-Aldrich
Product number
8.03209
Product name
1,1-Dichloroethylene
Purity
(stabilised with hydroquinone monomethyl ether) for synthesis
Packaging
1L
Price
$78.1
Updated
2024/03/01
Sigma-Aldrich
Product number
8.03209
Product name
1,1-Dichloroethylene
Purity
(stabilised with hydroquinone monomethyl ether) for synthesis
Packaging
30kg
Price
$870
Updated
2024/03/01
Sigma-Aldrich
Product number
40027
Product name
1,1-Dichloroethene solution
Purity
certified reference material, 1000?μg/mL in methanol
Packaging
1mL
Price
$41.9
Updated
2024/03/01
Sigma-Aldrich
Product number
02574
Product name
1,1-Dichloroethylene
Purity
analytical standard
Packaging
1ml
Price
$44
Updated
2024/03/01
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VINYLIDENE CHLORIDE Chemical Properties,Usage,Production

Chemical Properties

Colorless liquid. Readily polymerizes. Insoluble in water. Commercial product contains small proportion of inhibitor.

Chemical Properties

Vinylidene chloride is a volatile liquid. Mild, sweet odor resembling chloroform. The odor threshold in air is 500 ppm.

Physical properties

Colorless liquid or gas with a mild, sweet, chloroform-like odor. The average least detectable odor threshold concentration in water at 60 °C and in air at 40 °C was 1.6 mg/L (Alexander et al., 1982).

Uses

1,1-Dichloroethylene (1,1-DCE) is used toproduce vinylidene copolymers for films andcoatings.

Uses

VDC is used to make various kinds of chemical intermediates, agricultural chemicals, SARAN?polyvinylidene chloride (PVDC) resins and films, PVDC latex coatings, and photographic and X-ray films.

Uses

Intermediate in the production of "vinylidene polymer plastics" such as Saran (Dow) .

Production Methods

VDC is prepared commercially by the dehydrochlorination of 1,1,2-trichloroethane using a slight excess of lime or caustic as shown in the reaction schematic. About 200 ppm of monomethyl ether of hydroquinone (MEHQ) is added to prevent polymer formation and preserve product quality.

Definition

ChEBI: A member of the class of chloroethenes that is ethene in which both of the hydrogens attached to one of the carbons are replaced by chlorines.

General Description

A clear colorless liquid with a chloroform-like odor. Flash point 0°F. Boiling point 99°F. Denser (at 10.1 lb / gal) than water and insoluble in water. Hence sinks in water. May polymerize exothermically if heated or contaminated. If the polymerization takes place inside a container, the container may rupture violently. Vapors heavier than air.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

Peroxidizable monomer, such as VINYLIDENE CHLORIDE, may initiate exothermic polymerization of the bulk material [Bretherick 1979. p. 160, 187]. Mixing vinylidene chloride in equal molar portions in a closed container with any of the following substances caused the temperature and pressure to increase: chlorosulfonic acid, nitric acid, or oleum [NFPA 1991]. It's reaction products with ozone are particularly dangerous, [Dow Chemical, 1968]. This may extend to other powerful oxidants, as various peroxides are produced.

Health Hazard

Vapor can cause dizziness and drunkenness; high levels cause anesthesia. Liquid irritates eyes and skin.

Health Hazard

1,1-DCE exhibits low acute toxicity. Vaporsare irritant to the mucous membranes. Athigh concentrations it produces narcoticeffects. Chronic exposure to a 50-ppm con centration for 8 hours/day, 5 days/week for6 months resulted in liver and kidney injuryin experimental animals. The liquid in con tact with the eyes causes irritation. The LC50value in rats is within the range 6300 ppm fora 4-hour exposure period. The oral toxicity islow. A lethal dose by subcutaneous admin istration is 3700 mg/kg in rabbits. Ingestioncan cause nausea and vomiting.
Tests on laboratory animals indicate that1,1-DCE is cancer causing. Rats and micesubjected to 12 months’ inhalation of thiscompound developed tumors of the liver,kidney, skin, and blood. Carcinogenicity inhumans is not reported.

Fire Hazard

Flammable liquid; flash point (closed cup) -18°C(0°F) (flash point data reported in the literature differ); vapor pressure 500 torr at 20°C (68°F); vapor density 3.34 (air=1); the vapor is heavier than air and can travel a considerable distance to a source of igni tion and flash back; autoignition temperature 570°C (1058°F); fire-extinguishing agent: dry chemical, CO2, or foam; use water to keep fire-exposed containers cool and to flush any spill.
1,1-DCE vapors form explosive mixtures with air within the range 7.3–16.0% by volume in air. It polymerizes at elevated temperatures. If polymerization occurs in a closed container, the container may rup ture violently. Polymerization is inhibited in the presence of 200 ppm of hydroquinone monomethyl ether (Aldrich 1997). It forms a white deposit of peroxide on long stand ing which may explode. It decomposes when involved in fire, producing toxic hydrogen chloride. Reactions with concentrated min eral acids are exothermic.

Safety Profile

Suspected carcinogen with experimental carcinogenic, neoplastigenic, tumorigenic, and teratogenic data. Poison by inhalation, ingestion, and intravenous routes. Moderately toxic by subcutaneous route. Human systemic effects by inhalation: general anesthesia, liver and hdney changes. Experimental reproductive effects. Mutation data reported. See also VINYL CHLORIDE. A very dangerous fire hazard when exposed to heat or flame. Moderately explosive in the form of gas when exposed to heat or flame. It forms explosive peroxides upon exposure to air. Potentially explosive reaction with chlorotrifluoroethylene at 18O℃. Reaction with ozone forms dangerous products. Explosive reaction with perchloryl fluoride when heated above 100℃. Also can explode spontaneously. Reacts violently with chlorosulfonic acid, HNO3, oleum. Can react vigorously with oxidizing materials. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORINATED HYDROCARBONS, ALIPHATIC.

Potential Exposure

Vinylidene chloride is used in the manufacture of 1,1,1-trichloroethane (methyl chloroform). However, the manufacture of polyvinylidene copolymers is the major use of VDC. The extruded films of the copolymers are used in packaging and have excellent resistance to water vapor and most gases. The chief copolymer is Saran (polyvinylidene chloride/vinyl chloride), a transparent film used for food packaging. The films shrink when exposed to higher than normal temperatures. This characteristic is advantageous in the heat-shrinking of overwraps on packaged goods and in the sealing of the wraps. Applications of VDC latexes include mixing in cement to produce highstrength mortars and concretes, and as binders for paints and nonwoven fabrics providing both water resistance and nonflammability. VDC polymer lacquers are also used in coating films and paper. VDC is also used to produce fibers. Monofilaments, made by extruding the copolymer, are used in the textile industry as furniture and automobile upholstery; drapery fabric; outdoor furniture; venetian-blind tape; and filter cloths.

Carcinogenicity

The IARC has concluded that there is inadequate evidence in humans and limited evidence in experimental animals for the carcinogenicity of VDC and has placed it in its Group 3 category as not classifiable as to its carcinogenicity to humans.
This conclusion is consistent with the evaluation by the EPA, where VDC exhibits suggestive evidence of carcinogenicity but not sufficient evidence to assess human carcinogenic potential following inhalation exposure in studies in rodents.

Environmental Fate

Biological. 1,1-Dichloroethylene significantly degraded with rapid adaptation in a static-culture flask-screening test (settled domestic wastewater inoculum) conducted at 25 °C. Complete degradation was observed after 14 d. At concentrations of 5 and 10 mg/L, the amount lost due to volatilization at the end of 10 d was 24 and 15%, respectively (Tabak et al., 1981).
Soil. In a methanogenic aquifer material, 1,1-dichloroethylene biodegraded to vinyl chloride (Wilson et al., 1986). Under anoxic conditions, indigenous microbes in uncontaminated sediments degraded 1,1-dichloroethylene to vinyl chloride (Barrio-Lage et al., 1986).
Photolytic. Photooxidation of 1,1-dichloroethylene in the presence of nitrogen dioxide and air yielded phosgene, chloroacetyl chloride, formic acid, HCl, carbon monoxide, formaldehyde, and ozone (Gay et al., 1976). At 298 K, 1,1-dichloroethylene reacts with ozone at a rate of 3.7 x 10-21 cm3/molecule?sec (Hull et al., 1973).
Chemical/Physical. At temperatures exceeding 0 °C in the presence of oxygen or other catalysts, 1,1-dichloroethylene will polymerize to a plastic (Windholz et al., 1983). The alkaline hydrolysis of 1,1-dichloroethylene yielded chloroacetylene. The reported hydrolysis half-life at 25 °C and pH 7 is 1.2 x 108 yr (Jeffers et al., 1989).

Shipping

UN1303 Vinylidene chloride, stabilized, Hazard Class: 3; Labels: 3-Flammable liquid.

Incompatibilities

Readily forms explosive peroxides; violent polymerization from heat or on contact with oxidizers, chlorosulfonic acid; nitric acid; or oleum; or under the influence of oxygen, sunlight, alkali metals; aluminum, copper. Explosive on heating or on contact with flames. Inhibitors, such as the monomethyl ether of hydroquinone are added to prevent polymerization.

Waste Disposal

Return refillable compressed gas cylinders to supplier. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. Incineration, preferably after mixing with another combustible fuel. Care must be exercised to assure complete combustion to prevent the formation of phosgene. An acid scrubber is necessary to remove the halo acids produced.

VINYLIDENE CHLORIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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VINYLIDENE CHLORIDE Suppliers

Qingdao Dexin Chemical Co., Ltd
Tel
17354621915 17354621915
Email
1214127295@qq.com
Country
China
ProdList
162
Advantage
58
Shandong Hongyuan Chemical Technology Co., LTD
Tel
13561560789
Email
xinxiaoxiao2008@126.com
Country
China
ProdList
511
Advantage
58
Shandong Jiuyue Biological Technology Co. LT
Tel
18853316981 18853316981
Email
1214127295@qq.com
Country
China
ProdList
35
Advantage
58
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Shanghai Longsheng chemical Co.,Ltd.
Tel
021-58099652-8005 13585536065
Fax
021-58099609
Email
bin.wu@shlschem.com
Country
China
ProdList
9809
Advantage
59
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11707
Advantage
57
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11707
Advantage
57
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View Lastest Price from VINYLIDENE CHLORIDE manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
VINYLIDENE CHLORIDE 75-35-4
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100 mt
Release date
2021-07-20
Hebei Weibang Biotechnology Co., Ltd
Product
DIISOSTEARYL DIMER DILINOLEATE 75-35-4
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100 mt
Release date
2021-07-28
Hebei Weibang Biotechnology Co., Ltd
Product
Homosalate 75-35-4
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100 mt
Release date
2021-11-19

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