poly(vinylidene fluoride) (CAS 24937-79-9) — formula C2H2F2, molecular weight 64.03; category inorganic chemicals.
Documented applications: Uses: Used in the production of polyvinylidene fluoride polymers and elastomers, [HSDB], Plastic Composites Manufacturing [Category: Industry], Manufacture of polymers and copolymers, chemical intermediate, Used for the mfg of poly(vinylidene fluoride) and for copolymerization with many fluorinated monomers. One commercially significant use is the mfg of high performance fluoroelastomers that include copolymers of 1, 1-difluorothene with hexafluoropropylene (HFP) or chlorotrifluoroethylene (CTFE) and terpolymers with HFP and tetrafluoroethylene, Industry Uses: Monomers, Methods of Manufacturing: Currently, three basic methods are used for the commercial production: (1) dechlorination of 1, 2-dichloro-1, 1-difluoroethane in the gas phase and on a metal catalyst, (2) dechlorination of 1-chloro-1, 1-difluoroethane, and (3) dehydrofluorination of 1, 1, 1-trifluoroethane., Thermal elimination of HCl from 1-chloro-1, 1-difluoroethane is the principal industrial route...dehydrohalogenation of 1-bromo-1, 1-difluoroethane or 1, 1-trifluoroethane, or dehalogenation of 1, 1-difluoroethane are alternative routes, it can also be continuously prepared by the pyrolysis of trifluoromethane in the presence of a catalyst and either methane or ethylene., Impurities: Oxygen, 0.05 mol% max, other impurities, 0.2 mol% max and moisture, 0.01 mol% max...other impurities present are vinyl fluoride, difluoromethane, 1-difluoro-1-chloroethane and 1, Formulations, Preparations: GRADE: 99% min purity, Genetron 1132A, The commercial product is typically 99.75 mol% min pure, Consumption Patterns: Consumption of poly(vinylidene fluoride), the polymer made from 1, 1- difluoroethene, has grown from zero in 1960 to about 6200 metric tons in 1991, U.S. Production: 2023: 25, 000, 000 - <40, 000 lb, 2022: 25, 2021: 25, 2020: 25, Ethene, 1-difluoro- is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#5267], Production volume for non-confidential chemicals reported under the 2006 Inventory Update Rule. Chemical: Ethene, 1-difluoro-. Aggregated National Production Volume: 10 to <50 million pounds., General Manufacturing Information: All Other Basic Organic Chemical Manufacturing, Plastics Material and Resin Manufacturing, 1-difluoro-: ACTIVE, Applications: insulation for high-temp wire, tank linings, chemical tanks and tubing, protective paints and coatings with exceptional resistance (30 yr) to weathering and uv, value and impeller parts, shrinkage tubing to encapsulate resistors, diodes and soldered joints, sealant., Polyvinylidene fluoride.
poly(vinylidene fluoride) is an inorganic compound with CAS registry number 24937-79-9 and molecular formula C2H2F2 (molecular weight 64.03), belonging to the inorganic chemicals segment of chemical raw materials.
CAS number: 24937-79-9
Its molecular formula C2H2F2 comprises 2 C, 2 H, 2 F atoms.
Also known as: poly(vinylidene fluoride) · PVDF
Category: inorganic chemicals
The CAS registry number of poly(vinylidene fluoride) is 24937-79-9.
Molecular formula C2H2F2, molecular weight 64.03.
It is also registered under: poly(vinylidene fluoride), PVDF.
Recorded applications: Uses: Used in the production of polyvinylidene fluoride polymers and elastomers, [HSDB], Plastic Composites Manufacturing [Category: Industry], Manufacture of polymers and copolymers, chemical intermediate, Used for the mfg of poly(vinylidene fluoride) and for copolymerization with many fluorinated monomers. One commercially significant use is the mfg of high performance fluoroelastomers that include copolymers of 1, 1-difluorothene with hexafluoropropylene (HFP) or chlorotrifluoroethylene (CTFE) and terpolymers with HFP and tetrafluoroethylene, Industry Uses: Monomers, Methods of Manufacturing: Currently, three basic methods are used for the commercial production: (1) dechlorination of 1, 2-dichloro-1, 1-difluoroethane in the gas phase and on a metal catalyst, (2) dechlorination of 1-chloro-1, 1-difluoroethane, and (3) dehydrofluorination of 1, 1, 1-trifluoroethane., Thermal elimination of HCl from 1-chloro-1, 1-difluoroethane is the principal industrial route...dehydrohalogenation of 1-bromo-1, 1-difluoroethane or 1, 1-trifluoroethane, or dehalogenation of 1, 1-difluoroethane are alternative routes, it can also be continuously prepared by the pyrolysis of trifluoromethane in the presence of a catalyst and either methane or ethylene., Impurities: Oxygen, 0.05 mol% max, other impurities, 0.2 mol% max and moisture, 0.01 mol% max...other impurities present are vinyl fluoride, difluoromethane, 1-difluoro-1-chloroethane and 1, Formulations, Preparations: GRADE: 99% min purity, Genetron 1132A, The commercial product is typically 99.75 mol% min pure, Consumption Patterns: Consumption of poly(vinylidene fluoride), the polymer made from 1, 1- difluoroethene, has grown from zero in 1960 to about 6200 metric tons in 1991, U.S. Production: 2023: 25, 000, 000 - <40, 000 lb, 2022: 25, 2021: 25, 2020: 25, Ethene, 1-difluoro- is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#5267], Production volume for non-confidential chemicals reported under the 2006 Inventory Update Rule. Chemical: Ethene, 1-difluoro-. Aggregated National Production Volume: 10 to <50 million pounds., General Manufacturing Information: All Other Basic Organic Chemical Manufacturing, Plastics Material and Resin Manufacturing, 1-difluoro-: ACTIVE, Applications: insulation for high-temp wire, tank linings, chemical tanks and tubing, protective paints and coatings with exceptional resistance (30 yr) to weathering and uv, value and impeller parts, shrinkage tubing to encapsulate resistors, diodes and soldered joints, sealant., Polyvinylidene fluoride.
Category: Inorganic Chemicals.
Public-database records for poly(vinylidene fluoride) (CAS 24937-79-9), reproduced here for independent cross-checking.
| GHS notification summary | 3.3% (12 / 362) |
|---|---|
| Reported hazard statements | H220 (96.1%), H230 (28.7%), H280 (96.7%), H340 (11%), H350 (11%), H336 |
This chemical does not meet GHS hazard criteria for 3.3% (12 of 362) of reports.
H220 (96.1%): Extremely flammable gas [Danger Flammable gases]
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS |
|---|---|
| GHS notification summary | 3.3% (12 / 362) |
| 沸点 | -123 °F at 760 mmHg (NTP, 1992) |
|---|---|
| 沸点 | -85.7 °C |
| 沸点 | -83 °C |
| 沸点 | -123 °F |
| 沸点 | -122 °F |
| 熔点 | -227 °F (NTP, 1992) |
| 熔点 | -144 °C |
| 熔点 | -227 °F |
| 溶解度 | In water, 164.9 mg/L at 25 °C |
| 密度 | 0.617 g/cc at 24 °C (liquid) |
| CAS Registry Number | 24937-79-9 |
|---|---|
| PubChem CID | 6369 |
| 分子式 | C2H2F2 |
| IUPAC 名称 | 1,1-difluoroethene |
| UNII（FDA） | 3C1IX2905B |
Vinylidene fluoride; 1,1-Difluoroethylene; 1,1-DIFLUOROETHENE; 75-38-7; Vinylidene difluoride; Ethene, 1,1-difluoro-; Ethylene, 1,1-difluoro-; Genetron 1132a; Halocarbon 1132A; NCI-C60208; NCI-C60204; UN1959; 3C1IX2905B; DTXSID3021439; Difluoro-1,1-ethylene; RefChem:6353
| 分子量 | 64.03 |
|---|---|
| XLogP3 | 1.3 |
| 氢键供体数 | 0 |
| 氢键受体数 | 2 |
| 可旋转键数 | 0 |
| 精确质量 | 64.01245639 |
| 单同位素质量 | 64.01245639 |
| 拓扑极性表面积 | 0 |
| 重原子数 | 4 |
| 形式电荷 | 0 |
poly(vinylidene fluoride) · CAS 24937-79-9 · C2H2F2. UNII 3C1IX2905B. 沸点: -123 °F at 760 mmHg (NTP, 1992); 沸点: -85.7 °C; 沸点: -83 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
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