25038-81-7
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Basic information
- Product Name: POLY(PYROMELLITIC DIANHYDRIDE-CO-4,4'-OXYDIANILINE), AMIC ACID
- Synonyms: POLY(PYROMELLITIC DIANHYDRIDE-CO-4,4'-OXYDIANILINE), AMIC ACID;PYRE(R)-ML RC-5057;PYRE(R)-ML RC-5069;PYRE(R)-ML RK-692;PYRE-ML RC-5019;PYRE-ML(R) RC-5019;PYRE-ML(R) RC-5057;PYRE-ML(R) RC-5097
- CAS NO:25038-81-7
- Molecular Formula: C22H14N2O7
- Molecular Weight: 418.35576
- EINECS: N/A
- Product Categories: Polymers;Amides and Imides;Hydrophobic Polymers;Polymer Science;Amides and Imides;Hydrophobic Polymers;Materials Science;Polymer Science
- Mol File: 25038-81-7.mol
- Article Data: 0
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Chemical Properties
- Melting Point: N/A
- Boiling Point: 174 °C
- Flash Point: 85 °F
- Appearance: /viscous liquid
- Density: 1.166 g/mL at 25 °C
- Refractive Index: n20/D 1.5120
- Storage Temp.: −20°C
- Solubility: H2O: miscible
- CAS DataBase Reference: POLY(PYROMELLITIC DIANHYDRIDE-CO-4,4'-OXYDIANILINE), AMIC ACID(CAS DataBase Reference)
- NIST Chemistry Reference: POLY(PYROMELLITIC DIANHYDRIDE-CO-4,4'-OXYDIANILINE), AMIC ACID(25038-81-7)
- EPA Substance Registry System: POLY(PYROMELLITIC DIANHYDRIDE-CO-4,4'-OXYDIANILINE), AMIC ACID(25038-81-7)
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Safety Data
- Hazard Codes: T,Xn,Xi
- Statements: 45-65-36/38-20/21-10-36/37/38-61-46-52/53
- Safety Statements: 26-36-45-36/37-53-62-61
- RIDADR: UN 1866 3/PG 3
- WGK Germany: 1
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 25038-81-7(Hazardous Substances Data)
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25038-81-7 Usage
General Description
Poly(pyromellitic dianhydride-co-4,4′-oxydianiline), amic acid solution (PAA) converts to polyimide at 300oC. The FTIR spectra indicates a carbonyl stretch of carboxylic acids in PAA at 1650 cm-1. Following the imidization process, the peak at 1720cm-1 grows, indicating the formation of imide group.Check Digit Verification of cas no
The CAS Registry Mumber 25038-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,0,3 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.Calculate Digit Verification of CAS Registry Number 25038-81:
(7*2)+(6*5)+(5*0)+(4*3)+(3*8)+(2*8)+(1*1)=97
97 % 10 = 7
So 25038-81-7 is a valid CAS Registry Number.
25038-81-7Upstream product
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POLY(PYROMELLITIC DIANHYDRIDE-CO-4,4'-OXYDIANILINE), AMIC ACID
