We are 3,3′,4,4′-biphenyltetracarboxylic dianhydride/bpda CAS:2420-87-3 manufacturer and supplier in China, Pls send inquiry of to info@nbinno.com of visit www.nbinno.com our official website should you have any interests
3,3′,4,4′-biphenyltetracarboxylic dianhydride/bpda cas 2420-87-3 manufacturer supply
Assay: 99.0%~101.0% (anhydrous substance)
Appearance: white powder
Capacity: 300tons/year
Packaging: 25kgs/drum
Sample: available
Category: Organic Intermediate
3,3′,4,4′-Biphenyltetracarboxylic dianhydride
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.
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