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2421-28-5 - 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+% - BTDA - 4,4'-Carbonyldiphthalic anhydride - A16529 - Alfa Aesar

A16529 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+%

CAS Number
2421-28-5
Synonyms
BTDA
4,4'-Carbonyldiphthalic anhydride

Size Price ($) Quantity Availability
100g 26.01
500g 70.56
2.5kg 248.40
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3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+%

MDL
MFCD00005923
EINECS
219-348-1

Chemical Properties

Formula
C17H6O7
Formula Weight
322.23
Melting point
220-226°
Boiling Point
320°/5mm
Flash Point
324°(615°F)
Density
1.570
Sensitivity
Moisture Sensitive
Solubility
Soluble in DMF (0.1 g/mL). Reacts with water.

Applications

BTDA polymer fine free-flowing powder suitable for general purposes. BTDA Microfine Micronized powder facilitates mixing in epoxy resins. BTDA ultrapure high-purity, high-assay powder for critical polyimide synthesis.

Notes

Moisture Sensitive. Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents.

Literature References

Horng-Long Tyan,; Kung-Hwa Wei,; Tsung-Eong Hsieh. Mechanical properties of clay-polyimide (BTDA-ODA) nanocomposites via ODA-modified organoclay. Journal of Polymer Science Part B: Polymer Physics. 2008, 38(44),2873-2878.

James F. Dezern. Synthesis and characterization of BTDA-based polyamide-imides. Journal of Polymer Science Part A: Polymer Chemistry. 1988, 26 (9), 2157-2169.

GHS Hazard and Precautionary Statements

Hazard Statements: H319-H335

Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P264-P305+P351+P338-P304+P340-P312-P337+P313-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician if you feel unwell. If eye irritation persists: Get medical advice/attention. Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
761777
Harmonized Tariff Code
2918.30
TSCA
Yes

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