Succinic Anhydride

Additional name: Succinic acid anhydride; Succinyl oxide; Bernsteinsaure anhydride; Butanedioic anhydride; Dihydro-2.5-furandione
CAS: 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