99.5% Purity PA
CAS No.85-44-9
Purity：≥99.5%
Molecular Formula：C8H4O3
Phthalic anhydride, referred to as PA, a white scaly or crystalline powder. Phthalic anhydride is an important raw material in chemical industry, especially used in the manufacture of plasticizers, like Dibutyl phthalate and dioctyl phthalate.
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 ISO45001 Certificate
ISO45001 Occupational health and safety management system certificate
ISO45001 Provide a set of management methods of risk control for the organization: through professional investigation and evaluation and the conformity identification of relevant regulatory requirements, existing in the products, services, activities and working environment, for the unacceptable hazards and risks, implement control plan, regular inspection and safety regulations and plan, establish a management system including organizational structure, responsibilities, training, information communication, emergency preparedness and response, continuously improve the occupational health and safety performance.
ISO45001 Is the international safety and health management system verification standard, is the new version of the original occupational health and safety management system (OHSAS18001), the purpose is to reduce and prevent the loss of life, property, time, as well as damage to the environment through management.
ISO 45001 Occupational health and safety management system is applicable to any organization's occupational health and safety management system standards, the purpose is to reduce and prevent the loss of life, property, time caused by accidents, as well as the damage to the environment.
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.
