Understanding Para-Dichlorobenzene (PDCB): A Comprehensive Overview

Introduction to Para-Dichlorobenzene (PDCB)

Para-Dichlorobenzene (PDCB), also known as 1,4-Dichlorobenzene, is a chlorinated aromatic hydrocarbon with the chemical formula C₆H₄Cl₂. It is commonly used as a deodorant, pesticide, and chemical intermediate in various industrial applications.

Chemical Properties of 1,4-Dichlorobenzene

• Molecular Formula: C₆H₄Cl₂

• Molecular Weight: 147.00 g/mol

• Appearance: White crystalline solid

• Melting Point: ~53°C

• Boiling Point: ~174°C

• Solubility: Slightly soluble in water; soluble in organic solvents like ethanol 

• Odor: Strong, mothball-like scent安全笔记+20BYJU'S+20SIELC Technologies+20

These properties make PDCB suitable for applications requiring volatility and sublimation, such as air fresheners and moth repellents.

Common Uses of Para-Dichlorobenzene

PDCB is widely utilized in various sectors:

• Deodorants: Used in air fresheners and toilet blocks to mask odors.

• Pesticides: Effective against moths, molds, and mildews.

• Chemical Intermediate: Employed in the synthesis of other chemicals, including poly(p-phenylene sulfide), a high-performance polymer.

• Industrial Applications: Utilized in the production of dyes, pharmaceuticals, and as a solvent in certain processes.TSK+26新泽西州官方网站+26cameochemicals.noaa.gov+26

Its effectiveness in controlling pests and odors has made it a staple in household and industrial products.

Safety and Handling of PDCB

While PDCB is useful, it poses certain health risks:

• Inhalation: Can cause respiratory irritation.

• Skin Contact: May lead to irritation upon prolonged exposure.

• Ingestion: Harmful if swallowed; can affect liver and kidney functions.

• Carcinogenicity: Classified as a possible human carcinogen by some health agencies.毒物与疾病登记局+25新泽西州官方网站+25Aarti Industries+25US EPA+9SlideServe+9国家农药信息中心+9

Proper handling includes using personal protective equipment (PPE) and ensuring adequate ventilation in work areas.

Environmental Impact of 1,4-Dichlorobenzene

PDCB is persistent in the environment and can accumulate in living organisms:

• Aquatic Toxicity: Highly toxic to aquatic life.

• Bioaccumulation: Can build up in the tissues of organisms, leading to long-term ecological effects.

• Regulations: Subject to environmental regulations to control its release and disposal.

Proper disposal and adherence to environmental guidelines are crucial to minimize its ecological footprint.

Regulatory Status and Guidelines

Various agencies have set exposure limits and guidelines for PDCB:

• OSHA: Permissible Exposure Limit (PEL) of 75 ppm over an 8-hour workday.

• EPA: Classifies PDCB as a hazardous air pollutant and regulates its emissions.

• International Regulations: Subject to regulations under frameworks like REACH in the EU.

Compliance with these regulations ensures safe usage and minimizes health risks.

Conclusion

Para-Dichlorobenzene is a versatile chemical with significant applications in various industries. However, its potential health and environmental risks necessitate careful handling and adherence to safety regulations. For high-quality PDCB products and further information, consider visiting High Mountain Chem.

Frequently Asked Questions (FAQ)

Q1: What is the primary use of Para-Dichlorobenzene?
A1: It is primarily used as a deodorant and pesticide, commonly found in air fresheners and mothballs.

Q2: Is Para-Dichlorobenzene safe for household use?
A2: While it is effective in controlling odors and pests, prolonged exposure can pose health risks. It's essential to use it in well-ventilated areas and follow safety guidelines.

Q3: How should PDCB be stored?
A3: Store in a cool, dry place away from direct sunlight and incompatible substances. Ensure containers are tightly sealed.

Q4: Can PDCB contaminate water sources?
A4: Yes, improper disposal can lead to water contamination, affecting aquatic life. Always dispose of PDCB-containing products according to local regulations.

Q5: Where can I purchase high-quality Para-Dichlorobenzene?
A5: For reliable and high-purity PDCB products, visit High Mountain Chem.

Wuxi High Mountain Hi-tech Development Co., Ltd is a professional industrial company engaged in special chemical production, technology research & development, and import & export. The company focuses on the production, trade, and research & development of various chemical products.

Since establishment, the company has been concentrating on constructing an international marketing network and optimizing supply chain management, where we have established a long-term strategic cooperation relationship with numerous large enterprises at home and abroad. Relying on our wide business channels and professional experience, we are more skillfully providing products of stable but differentiated quality, along with flexible, highly efficient & considerate service to satisfy our partner at more competitive pricing.

Efficiently treating our customers as partners with sincerity, specialization and satisfaction is our managerial principle. Attributed to the backup of a dedicated technical team, filled with wide and profound knowledge and practice in chemicals and world trade for 20 years, the company owns rich experience in product quality control, technical solution, chemical logistics organization, packaging optimization, port operation, etc., which accounts for its first-class cost control management and ensures to maintain the overwhelming competitive advantage over others. In line with the principle of sharing the preferential cost and joint development, the company has formed an interesting community for years with its customers at home and abroad. Sincerely to build up a pleasant mutual trust, cooperative, win-win, and value-added sustainable partnership is what we are achieving to grow together with you!

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A: What about product quality assurance policy?
Q: We accept pre-shipment test by SGS or any other third party agents.

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