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Acetic anhydride, for analysis, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: Acetyl oxide
- (CH3CO)2O
- M = 102,09 g/mol
- CAS [108-24-7]
- EINECS-No.: 203-564-8
- Density: 1,08 g/cm3
- Solub. in water: (20 ºC): hydrolysis reaction
- Melting point: -73 ºC
- Boiling point: 138 - 140,5 ºC
- Flash pt. 49 ºC
- Ignition temp.: 330 ºC
- Vapour pressure: (20 ºC) 4hPa
- Refraction index: (n 20 ºC/D) 1,3903
- LD 50 (oral, rat): 1780 mg/kg
- EC-Index-No.: 607-008-00-9
- ADR: 8 CF1 II UN 1715
- IMDG: 8 II UN 1715
- IATA/ICAO: 8 II UN 1715
- GHS-signal word: Danger
- GHS-H sentences: H226 - H302 - H314 - H330 - H335 -
- GHS-P sentences: P210 - P303+P361+P353 - P305+P351+P338 - P310 - P320 - P370+P378 - P405 - P501a
- Tariff number: 2915 24 00 00
- Applications: analytical chemistry, synthesis of organic products, acetylating agent.

SPECIFICATIONS
assay (G.C.): min. 99 %
identity (IR-spectrum): passes test
density (20º/4º): 1,079 - 1,082
boiling point: 136 - 142 ºC
colour (Hazen): max. 10
appearance: clear
chlorides (Cl): max. 0,0002 %
phosphates (as PO4): max. 0,0005 %
sulfates (SO4): max. 0,0005 %
aluminium (Al): max. 0,5 ppm
barium (Ba): max. 0,1 ppm
boron (B): max. 0,02 ppm
cadmium (Cd): max. 0,05 ppm
calcium (Ca): max. 0,5 ppm
chromium (Cr): max. 0,05 ppm
cobalt (Co): max. 0,02 ppm
copper (Cu): max. 0,02 ppm
heavy metals (as Pb): max. 2 ppm
iron (Fe): max. 0,1 ppm
lead (Pb): max. 0,1 ppm
magnesium (Mg): max. 0,1 ppm
manganese (Mn): max. 0,02 ppm
nickel (Ni): max. 0,02 ppm
tin (Sn): max. 0,1 ppm
zinc (Zn): max. 0,1 ppm
substances darkened by H2SO4: passes test
substances reducing KMnO4 : passes test
residue on evaporation: max. 0,002 %