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Succinic Anhydride
Additional name: Succinic acid anhydride; Succinyl oxide; Bernsteinsaure anhydride; Butanedioic anhydride; Dihydro-2.5-furandione
CAS NO.: 108-30-5
Molecular formula: CH2CH2COOCO C4H4O3
Molecular weight: 100.08
Properties: colorless acicular crystals or granules. Soluble in ethanol, chloroform and carbon tetrachloride; slightly soluble in water and ethyl ether. Decomposes in hot water to succinic acid. mp 119.6, bp 261, d 1.503.
Precaution: Succinic anhydride is irritating to eye and mucosa. Wash with large amount of water in case of eye contact. Seek medical attention if needed.
Use: as analytical reagent; in manufacturing drug, agrochemcial, resin, etc.
Packaging & Storage: plastic lined woven bag, net weight 25kg. Store in a cool dry place.
Specification
| A.R. | C.P. | Medicine grade | Tech. grade | |
| Appearance | white crystals | white crystals | white crystals | white to light yellow crystals |
| Assay %≥ | 99.0-100.5 | 98.0-100.5 | 99.0 | 98.0 |
| mp | 118-122 | 118-122 | 117-121 | 116-121 |
| Water dissolution test | pass | pass | / | / |
| Residue on ignition %≤ | 0.005 | 0.01 | 0.1 | 0.2 |
| Cl % ≤ | 0.03 | 0.2 | ||
| Color (APHA) %≤ | 50 | 100 | ||
| Pb %≤ | 0.001 | 0.002 | ||
| As %≤ | 0.0002 | 0.0005 | ||
| Fe %≤ | 0.0005 | 0.001 | ||
| KMnO4 test (0.1N ml/g) | 1 | 2 |