PA Phthalic Anhydride
CAS No. 85-44-9
Purity：≥99.5%
Molecular Formula：C8H4O3
Phthalic anhydride can be used in the producing of plasticizer, alkyd resin, unsaturated polyester resin, dyes and pigments, insulating paints, fibreglass reinforced plastics and so on.
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Parameter
Technical standard GB/T 15336-2013
Index name | Index | ||
Superior products | First-grade products | Qualified products | |
Appearance | White flake or crystalline powder | Scaly or crystalline powder with other colors | |
Molten chroma ≤ | 20 | 50 | 100 |
Thermal stability chroma ≤ | 50 | 150 | — |
Sulphuric acid chroma≤ | 40 | 100 | 150 |
Crystallization point, ℃ ≥ | 130.5 | 130.3 | 130.0 |
Purity,% ≥ | 99.5 | 99.5 | 99.5 |
Mass fraction of free acid,% ≤ | 0.20 | 0.30 | 0.50 |
Product Performance and Application
Phthalic anhydride, short as PA, a white scaly or crystalline powder. Its Molecular formula is C8H403, molecular weight is 148.12, melting point is 131.1l ℃, boiling point is 284.5 ℃, flash point is 151 ℃ (closed) and 165 ℃ (open), spontaneous ignition point is 584 ℃and density (solid) is 1.527g/cm3. It is insoluble in cold water and soluble in hot water, ethanol, ether, benzene and other organic solvents.
Phthalic anhydride is an important raw material in chemical industry, especially used in the manufacture of plasticizers like DBP and DOP etc. can also be used together with other materials in the manufacture of products like resin, paint, glass fiber reinforced plastics. At the same time, It also is the raw material of benzoic acid and terephthalic acid.
About the package
About the package, we have two kinds of packages for you,
1. 25kg small bag, it is more concient to use.
2. 500kg big bag, it is more economical.
About the ISO14001 Certificate
ISO14001 Environmental management system certificate
ISO14001 Environmental management system certification is suitable for any organization, including enterprises, business and related government units, through the certification can prove that the organization reached the international level in environmental management, to ensure that the enterprise process, products and activities of all kinds of pollutants control to meet the relevant requirements, establish a good social image for the enterprise.
First, IS014001 certification is conducive to improving the environmental awareness of the enterprise, establish the ideology of sustainable development of the enterprise, but also improve the company's employees, compliance with the law awareness and environmental regulations of the implementation, after all, the manufacturer must pass the environmental assessment.
Second, IS014001 certification is conducive to the saving of stacking resources and sources, the rational use of real company resources, can promote the realization of bilateral or multilateral certification of environmental certification between countries, eliminate the technical trade fortress between the company and the company.
The last but not least, IS014001 certification can well mobilize the initiative of enterprises to prevent and control environmental pollution, and promote enterprises to continuously improve the environmental management work. The most important thing is the bidding application of 1S014001 certification, plus points. It is conducive to market competition.
FAQ
Q1: Are you the trading company or manufacturer ?
A: We are the manufacturer.
Q2: Can I get a free sample?
A: Yes, a sample less than 2 kg is free, you only need to pay the delivery cost.
Q3. What is your terms of payment?
A:We prefer TT, 30% as deposit, and 70% before delivery. but other ways is also negotiable.
Q4: How long is your delivery time?
A: We can do the delivery as soon as the payment.
Q5. Do you test all your goods before delivery?
A: Yes, we will test the product at least 3 times during the producing, And before delivery we will test it again.
