Product Name
Vinylidene chloride latex
Synonyms
VINYLIDENE CHLORIDE LATEX;1,1-dichloro-ethenhomopolymer;Ethene,1,1-dichloro-,homopolymer;Poly(vinylidenechloride)resin;polyvinylidene;polyvinylidenechloride;1,1-Dichloroethylene polymer;vinylidene chloride homopolymer
Description
Vinylidene chloride, stabilized appears as 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.;Liquid;VOLATILE COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.;Colorless liquid or gas (above 89°F) with a mild, sweet, chloroform-like odor.;Colorless liquid or gas (above 89°F) with a mild, sweet, chloroform-like odor.
IUPAC Name
1,1-dichloroethene
Molecular Weight
96.94g/mol
Molecular Formula
C2H2Cl2;H2C=CCl2;C2H2Cl2
Canonical SMILES
C=C(Cl)Cl
InChI
InChI=1S/C2H2Cl2/c1-2(3)4/h1H2
InChI Key
LGXVIGDEPROXKC-UHFFFAOYSA-N
Boiling Point
89.1 °F at 760 mm Hg (NTP, 1992);31.6 °C;31.6 °C;32 °C;89.1°F;89°F
Melting Point
-188.5 °F (NTP, 1992);-122.5 °C;-122.5 °C;-122 °C;-188.5°F;-189°F
Flash Point
14 °F (NTP, 1992);-19 °C (-2 °F) - closed cup;0 °F (open cup);-19 °F (-28 °C) - closed cup;-19 °C (Closed cup), -15 °C (Open cup);-17 °C (Closed cup);-25 °C c.c.;14°F;-2°F
Density
1.21 at 68 °F (USCG, 1999);1.2129 at 20 °C/4 °C;Relative density (water = 1): 1.2;1.21;1.21
Solubility
5 to 10 mg/mL at 70° F (NTP, 1992);0.02 M;In water, 2,420 mg/L at 25 °C;Insoluble in water;0.63 g/100 g water at 50 °C (solubility at saturation vapor pressure);In water: 3.5 g/l at 4 °C; 3.0 g/l at 16 °C;Soluble in ethanol, acetone, benzene, carbon tetrachloride; very soluble in ethyl ether, chloroform.;Solubility in water, g/100ml at 25 °C: 0.25 (very poor);0.04%
Application
Vinylidene chloride latex serves a crucial purpose in modern industrial applications due to its unique properties derived from copolymerization with other vinyl monomers, such as vinyl chloride. This copolymerization process enhances the material's usability by reducing molecular regularity, thus lowering the softening point and allowing for effective solubility in selective solvents like ethers and ketones, which is otherwise not possible with the homopolymer. As a result, vinylidene chloride latex copolymers find extensive use in producing packaging films admired for their superior clarity, toughness, and low permeability to moisture and gases. These films are typically produced via extrusion and biaxial stretching techniques. Moreover, the copolymers are employed as coatings for cellophane, paper, and polyethylene, offering excellent moisture and gas impermeability along with heat sealability. Additionally, they are used in the manufacturing of durable filaments suitable for applications demanding high tensile strength and chemical resistance, such as in car upholstery and garden chair fabrics. The versatility of vinylidene chloride latex extends to its applications in molding and extrusion resins, multilayer films, lacquer resins, and as a protective matrix in chemical processing pipelines.
Color/Form
Colorless liquid;Colorless liquid or gas (above 89 degrees F)
Corrosivity
Vinylidene chloride may be corrosive or unstable in the presence of steel.
Covalently-Bonded Unit Count
1
EC Number
200-864-0;920-418-5
Heat of Vaporization
26.48 kJ/mole at 25 °C
Log P
2.13 (LogP);log Kow = 2.13;2.41
MeSH Entry Terms
1,1-dichloroethene;1,1-dichloroethylene;vinylidene chloride;vinylidine chloride
Monoisotopic Mass
95.953356g/mol
Odor
Mild, sweet odor resembling that of chloroform
Other Experimental
Heat of polymerization: -185 cal/g; vapor specific gravity: 3.3;Heat of combustion: -4860 BTU/lb = -2700 cal/g;Liquid density at 0 °C: 1.2517 g/cu m;Critical temperature: 535.8 K; critical pressure: 5.4 MPa /cis-1,1-Dichloroethene/; Critical temperature: 515.5 K; critical pressure: 5.3 MPa /trans-1,1-Dichloroethene/;;Latent heat of fusion: 6.51 kJ/mol at melting point;Specific heat capacity: 1.148 J/g-K at constant pressure at 25 °C;Dielectric constant: 4.60 at 293.2 K;Heat of polymerization: -18.0 Kcal/mol.;Heat of formation: -23.9 kJ/mol (liquid); 2.8 kJ/mol (gas), at 298.15 K;Saturated concn in air: 2,640 g/cu m @ 20 °C, 3,675 g/cu m @ 30 °C;Solubility of water in monomer, at 25 °C, 0.035 wt%; critical vol: 218 cu m/mole;Conversion factor: 1 mg/cu m= 0.25 ppm, 1 ppm= 3.97 mg/cu m;Dipole moment: 1.30 debye @ 25 °C in benzene;Gibbs energy of formation: 5.85 kcal/mole (liq), 5.78 kcal/mole (gas);Enthalpy of melting: 1.557 kcal/mole @ mp; enthalpy of sublimation: 6.328 kcal/mole @ 298 K;Henry's Law constant = 2.61X10-2 atm-cu m/mole @ 24 °C;The water/air partition coefficient at 20 °C is 0.16.;Hydroxyl radical rate constant = 1.09X10-11 cu cm/molecule-sec @ 25 °C
Refractive Index
Index of refraction: 1.4249 at 20 °C/D
Safety Description
26-36/37/39
Stability
Stable under recommended storage conditions. Contains the following stabilizer(s): Mequinol (0.02%).;It forms explosive peroxides upon exposure to air.
UN Number
1303;1303;1303;1303;1303
Vapor Density
3.25 (NTP, 1992) (Relative to Air);3.25 (Air = 1);Relative vapor density (air = 1): 3.3;3.25
Vapor Pressure
500 mm Hg at 68 °F ; 591 mm Hg at 77° F (NTP, 1992);600.07 mmHg;600 mm Hg at 25 °C;Vapor pressure, kPa at 20 °C: 66.5;500 mmHg;500 mmHg
Viscosity
0.3302 cP at 20 °C
