Pyromellitic Acid Dianhydride(pmda)

We have large amount of Pyromellitic acid Dianhydride(PMDA) to export, which is also called 1,2,4,5-Benzenetetracarboxylic anhydride. It is widely used in PVC, synthetic resin, epoxy resin, dye, insulated paints etc. Products Introduction The largest scale PMDA production lines in China with advanced technology and continuous catalytic gas-phase oxidation process. Complete measures of test and analysis guarantee the stable and reliable product quality. PMDA is produced in several grades to meet specific market requirements and is sold worldwide. Properties & Applications PMDA is white to light yellow powder or block crytal. Its specific gravity is 1.68. It can be dissolved in organic solvents such as acetone and dimethylacetamide. The main applications of PMDA is 1. to produce polyimide resin and By-oriented polyimide sheets. 2.gloss retaining and curing agent for powder coating. 3. high temperatureresistant electrical insulating enamel, solid lubricant. 4. solidifying agent and plasticizer of epoxy resin. 5. crosslinking agents for polyester resins, etc. Specification: Appearance: white to light yellowish power or rime. Melting point (℃): 284-287 Content : ≥99% Particle : 99%＜10 ü m Neutralization equivalent : 54.5±0.2 Boiling point(℃ 101.3 kPa):397-400 Flash point(℃):380 Density(d204): 1.680 Storage : Keep in dry and well ventilated place, protected from moisture. Minimum Packaing: 25kgs per double packed paper fibre drums inside with aluminium foil film. If you need futher help ,please let me know via email susan(at)hydrocarbon-resin(dot)com. we will try our best to satisfy your demand.