Phthalic Anhydride For Plasticizer C8H4O3
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 ISO Certificate
Quality management system certification has an important significance and role for enterprises, it is not only to improve product quality and customer satisfaction guarantee, but also an important means to enhance the competitiveness of enterprises and brand image. Through the quality management system certification, the enterprise can achieve standardized management, continuous improvement and reduce the risk cost, so as to gain advantages in the market competition. Therefore, enterprises should seriously take the quality management system certification, which is not only an obligation, but also an important measure to create good conditions for their own development and growth.
ISO 9001 Represents quality management, ISO 14001 represents environmental management, and ISO 45001 represents occupational health and safety management. If the enterprise passes the three system certification, it represents the qualitative improvement in quality, environment, occupational health and safety, which is of great significance for the long-term development of the enterprise, the needs of customers and the expectations of the public.
FAQ
Q1: Are you the trading company or manufacturer ? Q2: Can I get a free sample? 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: Yes, we will test the product at least 3 times during the producing, And before delivery we will test it again.
A: We are the manufacturer.
A: Yes, a sample less than 2 kg is free, you only need to pay the delivery cost.
A: We can do the delivery as soon as the payment.
Q5. Do you test all your goods before delivery?
