3,3′,4,4′-biphenyltetracarboxylic dianhydride/bpda cas 2420-87-3

描述

3,3′,4,4′-Biphenyltetracarboxylic dianhydrideQuick Details

chemical name: 3,3′,4,4′-Biphenyltetracarboxylic dianhydride

Product name: BPDA

Cas No.: 2420-87-3

Molecular formula: C16H6O6

Molecular weight: 294.22

Molecular structure:

3,3′,4,4′-Biphenyltetracarboxylic dianhydridetypical Properties

Item	Standard		Test Results
Identification	A.H-NMR:Comply with the structure		Complies
	B.LC-MS:Comply with the structure		Complies
	C.The IR spectrum of sample should be identical with that of reference standard;		Complies
	D.HPLC-ESI-MSThe retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.		Complies
Loss on drying	≤0.5%		0.11%
Heavy metals	≤10 ppm		<10ppm
Sulphated ash	≤0.2%, determined on 1.0 g.		0.009%
Related substances	Unspecified impurities: for each impurity	≤0.10%	<0.10%
	Total Impurity	≤1.0%	0.18%
Purity	≥99.0%		99.82%
Assay	99.0%~101.0% (anhydrous substance).		99.9%

3,3′,4,4′-Biphenyltetracarboxylic dianhydrideUsage

Tape automated bonding (TAB), chip on film (COF), lead lock tape, high density flexible printed circuit (FPC), stiffener for FPC, office automation equipment, flexible solar cells, speaker diaphragms (for mobile phones, plasma televisions and car audio, etc.), heavy electric machinery, office automation equipment, thermal control film for satellites, printed circuit boards, metallic substrates, sheet heating elements, heat resistance wires.

3,3′,4,4′-Biphenyltetracarboxylic dianhydridePackaging and Shipping

Packing: 25kgs/drum.

Delivery: with in 5-7 working days.

3,3′,4,4′-Biphenyltetracarboxylic dianhydridestorage

Stored in a cool dry place out of direct sunlight.