Fumaric acid
 

Fumaric acid is called trans butendioic acid(IUPAC(E)-butenedioic acid. It’s colorless and inflammable crystal. It’s one kind of carboxylic acid produced from butene. The chemical formula is C4H4O4. When fumaric acid is burnt,maleic anhydride is released. The flavor is like fruit and it is found in corydalis,boletus,lichen and IceLand’s seasedge.


ITEM

UNIT

CONFORMS

ASSAY

%

MIN99.0

FUMARIC ACID

-%

MAX1.0

MALEIC ACID

%

MAX0.05

WATER INSOLUBLES

%

MAX0.1

RESIDUE ON IGNITION

%

MAX0.1

HEAVY METALS

PPM

MAX10

ARSENIC 

PPM

MAX2

CHLORIDE

PPM

MAX100

SPECIFIC ROTATION

---

-0.1------+0.1

 
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