| Customization: | Available |
|---|---|
| CAS No.: | 85-44-9 |
| Formula: | C8h4o3 |
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Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. It is the anhydride of phthalic acid. Phthalic anhydride is a principal commercial form of phthalic acid. It was the first anhydride of a dicarboxylic acid to be used commercially. This white solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastic.
Use: Phthalic anhydride is an anhydride of phthalic acid and a key intermediate in the production of plasticizers, dyes, polyesters resins, modifiers for rubber, and polymers.
| Item | Unit | Specification | Result |
| Appearance | White flakes or crystalline powder | Conform | |
| Molten color | PT-CO | ≤20 | 10 |
| Heat color | PT-CO | ≤50 | 30 |
| Sulphuric acid color | PT-CO | ≤40 | 20 |
| Purity | % | ≥99.5 | 99.98 |
| Crystallization point | ºC | ≥130.5 | 130.7 |
| Free acid | % | ≤0.2 | 0.028 |
Packing in 25KG or 500KG bag, 1000KG bag.
Shandong Longze Chemical Co.,Ltd mainly produces and supplies Dimethyl carbonate, Propylene glycol, Propylene carbonate, Diethyl carbonate, Isopropyl alcohol, Diisopropyl ether, succinct acid and Maleic acid, etc.
Focusing on supplying high quality products and better services to our customers and establishing a win-win cooperation relationship with our partners, LONGZE always try to create more values for customers.By the strongest supports and trust from our upstream and downstream customers, Shandong Longze has experienced diversified and rapid development. At present,our business have been involved in some industries like coatings&Paints, cosmetics&foods&flavors&pharmas, Resins&plasticizer&PU and drilling &oil recovery chemicals, etc.
With strict quality control and continuous innovation, we already get the certificate of ISO 9001, Kosher and Halal certificate. Looking to the future, Longze will strive to establish a long-term and stable cooperation with professional companies all around the world.
Stable supplying and timely delivery to customers
Integrity and perfect tracking management
High quality products and better services
Professional experience and skills on operating dangerous products and non-dangerous products
We specialize in this field for 19 years, with the strength of Dimethyl carbonate, propylene glycol (tech, food, USP grade), propylene carbonate, Isopropyl alcohol, Diisopropyl ether, succinic acid, Maleic acid and the other products.
Our HK company, Wanchem international limited, is specializing in petroleum additives, petroleum equipment, Solvents and some food additives.
At present, our business have been involved in some industries like coatings&Paints, cosmetic&personal care, Flavor&Fragrancy, Pharmaceutical&food, Resins and drilling&oil recovery chemicals, etc. So you can find more items together from us conveniently which saves much time for you.
Q: Are you factory or trading company?
We are manufacturer for our main products and also wholesale some chemicals.
Q: How long is your delivery time?
A: Generally it is about 15 days, if we have stock. If not, maybe need 20-30 days to arrange the shipping.
Q: Do you provide samples ? Is it free?
A: Yes, we could offer the sample for free, but hope the customer to pay the courier cost.
Q: What is your terms of payment ?
A: TT payment is favorable, LC at sight is fine. After we bulid good cooperation, we can discuss other payment terms.
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