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Phthalic Anhydride (PA) CAS No.: 85-44-9
Product Overview
Phthalic Anhydride (PA) is a vital organic chemical raw material, primarily produced by the oxidation of ortho-xylene or naphthalene. It appears as a white crystalline solid with a slight irritating odor. PA is widely used in the production of plasticizers, unsaturated polyester resins, alkyd resins, dyes, and pigments, making it an essential intermediate in the chemical industry.
Key Features
- High Reactivity: PA contains anhydride groups, which readily react with alcohols, amines, and other compounds to form esters or amides.
- Good Solubility: Soluble in hot water, alcohols, ethers, and other organic solvents.
- Stability: Stable under dry conditions but hydrolyzes slowly to phthalic acid in the presence of water.
- Versatility: Used in the synthesis of a wide range of chemical products, making it highly versatile.
Applications
- Plasticizers: Used to produce phthalate esters (e.g., DOP, DBP), which are widely used in PVC products to enhance flexibility and processability.
- Unsaturated Polyester Resins: Used in the manufacture of fiberglass, coatings, and adhesives, offering excellent mechanical properties and chemical resistance.
- Alkyd Resins: Used in paints, coatings, and varnishes, providing good adhesion and gloss.
- Dyes and Pigments: Serves as an intermediate in the synthesis of anthraquinone dyes and pigments.
- Other Applications: Used in the production of pharmaceutical intermediates, pesticides, and fragrances.
Packaging & Storage
- Packaging: Available in 25 kg/bag, 500 kg/bag, or ton bags. Custom packaging options are available upon request.
- Storage: Store in a cool, dry, and well-ventilated area. Avoid contact with moisture. Recommended storage temperature: 15-25℃.
Safety & Environmental Considerations
- Irritation: PA is irritating to the skin, eyes, and respiratory system. Proper protective equipment (e.g., gloves, goggles, respirators) must be worn during handling.
- Flammability: Combustible but not highly flammable. Keep away from open flames and high temperatures.
- Environmental Impact: Dispose of waste materials in accordance with local environmental regulations to prevent pollution.
Contact Us
For more information or to request a sample, please contact our sales team. We are committed to providing high-quality products and excellent service!
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Methanol Product Introduction
Product Overview
Methanol (CH₃OH) is a colorless, volatile liquid with a mild alcoholic odor. As the simplest alcohol compound, it is widely used in chemical, energy, and pharmaceutical industries. It can be produced from fossil fuels (e.g., natural gas, coal) or renewable resources (e.g., biomass, green hydrogen + CO₂), making it a key enabler of the low-carbon transition.
Product Characteristics
- High Combustion Efficiency: Clean-burning with moderate calorific value and low emissions.
- Easy Storage & Transport: Liquid at room temperature, more scalable than hydrogen.
- Versatility: Used as both fuel and chemical feedstock.
- Sustainability: “Green methanol” can achieve carbon neutrality.
Applications
1. Energy Fuel
- Automotive Fuel: Methanol gasoline (M15/M100) reduces exhaust emissions.
- Marine Fuel: Replaces heavy fuel oil in shipping (e.g., Maersk’s methanol-powered vessels).
- Fuel Cells: Powers devices/drones via direct methanol fuel cells (DMFC).
2. Chemical Feedstock
- Used to produce formaldehyde, acetic acid, olefins, etc., for plastics, paints, and synthetic fibers.
3. Emerging Uses
- Hydrogen Carrier: Stores/releases hydrogen via methanol cracking.
- Carbon Recycling: Produces methanol from CO₂ hydrogenation.
Technical Specifications
Item Specification Purity ≥99.85% Density (20℃) 0.791–0.793 g/cm³ Boiling Point 64.7℃ Flash Point 11℃（Flammable） Our Advantages
- End-to-End Supply: Integrated solutions from feedstock to end-use.
- Customized Products: Industrial-grade, fuel-grade, and electronic-grade methanol.
Note: MSDS (Material Safety Data Sheet) and COA (Certificate of Analysis) available upon request.
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Diethylene Glycol (DEG) Product Introduction
Product Overview
Diethylene Glycol (DEG, C₄H₁₀O₃) is a colorless, odorless, viscous liquid with hygroscopic properties and a sweet taste. As a vital chemical intermediate, it is widely used in polyester resins, antifreeze, plasticizers, solvents, and other applications, making it a key raw material in petrochemical and fine chemical industries.
Product Characteristics
- High Boiling Point: ~245°C, suitable for high-temperature processes.
- Hygroscopic: Absorbs moisture from the air.
- Excellent Solubility: Miscible with water, alcohols, ketones, etc.
- Low Toxicity: Less toxic than ethylene glycol (EG) but requires safe handling.
Applications
1. Polyesters & Resins
- Production of unsaturated polyester resins (UPR) for coatings and fiberglass.
- Diluent for epoxy resins.
2. Antifreeze & Refrigerants
- Low-toxicity antifreeze formulations (mixed with EG).
- Natural gas dehydrating agent.
3. Plasticizers & Solvents
- Solvent for nitrocellulose, inks, and adhesives.
- Textile lubricant.
4. Other Uses
- Tobacco humectant, cosmetic base, gas purification.
Technical Specifications
Item Specification Purity ≥99.0% Density (20°C) 1.116–1.118 g/cm³ Boiling Point 244–245°C Flash Point 143°C（Combustible）
Packaging & Storage
- Packaging: 250kg galvanized drums, IBC tanks.
- Storage: Sealed, dry, ventilated, away from oxidizers.
Safety Notes
- Health Hazard: Use gloves/goggles to avoid contact.
- Toxicity Warning: Do not ingest (sweet but toxic).
Our Advantages
- High Purity: Rigorous QC with minimal impurities.
- Flexible Supply: Bulk/customized packaging.
Note: COA, MSDS, and REACH documentation available.