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Huangshan Deping Chemical Co., Ltd.

China Manufacturer with main products: TGIC, Powder Coating

PMDA


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Specifications

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 um through 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.
 

Service Process

Service Guarantee

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    ECVV doesn't charge any service fee to Buyers for buying this product.

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  • Product Quality Commitment

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  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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