Ethyl acetate USP-NF/Ph.Eur 25LT Go Back

CASR

: 141-78-6

Molecular Formula

: CH3COOC2H5

Molecular Weight

: 88.1
Specifications  
Appearance: Clear, transparent, colorless volatile liquid having a fragrant, refreshing, slightly acetous odor.
Solubility: Soluble in water, with ether, fixed oils and with volatile oils miscible with acetone, with alcohol(96 per cent) and with methylene chloride.
Identification A (By Boiling point): 76° - 78°C
Identification B (By IR): IR spectra of the sample should be concomitant with IR spectra of the standard.
Identification C (Reaction of Acetyl): A blue color should develop at the junction of the two drops; the color intensifies and persists for a short time.
Identification D (Reaction of esters): A bluish-red or red color should produce.
Appearance of Solution: The solution is clear and colourless
Assay: 98.0% - 102.0%
Chromatographic purity (Acetaldehyde): NMT 0.1%
Chromatographic purity (1-Ethoxy-2-methylpropane): NMT 0.1%
Chromatographic purity (Methyl compounds): NMT 0.1%
Chromatographic purity (Other impurities): NMT 0.3%
Acidity: The solution should remain pink for not less than 15 s.
Specific gravity (25°C): 0.894-0.898
Relative density (20°C): 0.898 - 0.902
Refractive index (20°C ± 0.5°C): 1.370 - 1.373
Reaction with sulfuric acid /Readily carbonizable substances: The interface between the 2 liquids should not be colored.
Related substances (Total impurity): Not more than 0.2 per cent of the area of the principal peak.
Residue on evaporation / Nonvolatile residue: 30 ppm max
Water (By KF): 0.1% max
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