Polyvinyl chloride
[CAS# 9002-86-2]

Identification

• Classification: Catalysts and additives >> Polymer
• Name: Polyvinyl chloride
• Synonyms: PVC
• Molecular Formula: (C₂H₃Cl)_n
• Molecular Weight: ~48000
• CAS Registry Number: 9002-86-2 (93050-82-9)
• EC Number: 618-338-8
• SMILES: ClC=C

Properties

• Density: 1.4 g/mL(25 °C)

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H315-H319-H335
• Safety Statements: P261-P264-P264+P265-P271-P280-P302+P352-P304+P340-P305+P351+P338-P319-P321-P332+P317-P337+P317-P362+P364-P403+P233-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Reproductive toxicity	Lact.	-	H362
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412

Discovery and Applications

Polyvinyl chloride (PVC) is a widely used synthetic polymer with the chemical formula (C₂H₃Cl)ₙ. It is a versatile material known for its durability, chemical resistance, and low cost. PVC is synthesized through the polymerization of vinyl chloride monomers, which involves the addition of chlorine to ethylene to form vinyl chloride.

The discovery and development of PVC date back to the early 20th century. The polymerization of vinyl chloride was first achieved by the German chemist Friedrich Heinrich August Klatte in 1913. Initially, PVC was used primarily in its rigid form for pipes and other construction materials. It was not until the mid-20th century that the material's full potential was realized, thanks to advances in polymer chemistry and processing techniques.

One of the primary applications of PVC is in the construction industry. Its rigidity and resistance to corrosion make it an ideal material for pipes, fittings, and siding. PVC pipes are commonly used in plumbing, irrigation, and sewage systems due to their durability and resistance to chemicals and moisture. Additionally, PVC is used in window frames, flooring, and roofing materials, contributing to its widespread use in building and construction projects.

In addition to its applications in construction, PVC is also utilized in various consumer goods. The material is used to manufacture a wide range of products, including medical devices, electrical cable insulation, and packaging materials. In the medical field, PVC is employed in the production of blood bags, intravenous tubing, and other disposable medical items due to its sterility and flexibility. Its electrical insulation properties make it suitable for coating wires and cables, protecting them from environmental damage.

PVC's versatility extends to the production of flexible materials as well. When plasticizers are added, PVC becomes flexible and can be used in the production of products such as vinyl flooring, synthetic leather, and inflatable items. These flexible variants of PVC are valued for their ease of fabrication and adaptability in various applications.

Despite its widespread use, PVC has faced environmental and health concerns due to the potential release of hazardous chemicals during its production, use, and disposal. Efforts to address these concerns include the development of more sustainable production processes and the promotion of recycling programs to manage PVC waste.

Overall, the discovery and development of polyvinyl chloride have led to its extensive use across multiple industries, highlighting its importance as a versatile and cost-effective material.

References

2024. Combined exposure to lead and microplastics increased risk of glucose metabolism in mice via the Nrf2/NF‐κB pathway. Environmental Toxicology, 39(1).
DOI: 10.1002/tox.24125

2003. Modulation of angiogenic functions in human macrophages by biomaterials. Biomaterials, 24(20).
DOI: 10.1016/s0142-9612(03)00201-1

2003. Lung cancer risk in workers exposed to poly(vinyl chloride) dust: a nested case-referent study. Occupational and Environmental Medicine, 60(6).
DOI: 10.1136/oem.60.6.423