PMA

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PMA
Posting date : Sep 04, 2009
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Place of Origin
HS-CODE
32-
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Detailed Description
Chemical Formula C10H2O6 Molecular Weight 218.12 CAS Number: 89-32-7 EINECS Number: 201-898-9 Other Names: 1,2,4,5-Benzenetetracarboxylic Dianhydride; Benzene-1,2 Appearance White Crystals Assay (HPLC) wt% 99.5 min. TMA(HPLC) wt% 0.2 max. Free acid % (Titration Method) wt% 0.5 max. Melting Point (Calorimetric Method) 286.0~287.5 Particle Size DistributionAbove 500 umThrough 80 um Packaging and Storage :PMDA is available in 135 kg fibre drum with aluminum foil bag. Under request other forms of packaging can be available.It must be stored for a limited period, away from open flames or other potential ignition sources, in cool, dry, well-ventilated place. It will hydrolyse slowly to PMA when exposed to air moisture. For this reason, all containers must be tightly sealed when not in use
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