TNN Malic acid

Categories	Food additives
Brand	TNN Chemical Raw Materials Manufacturer
Update Time	Dec 4,2024

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Detail Information

Product Description

Malic acid, also known as 2-hydroxysuccinic acid, has two stereoisomers due to an asymmetric carbon atom in the molecule. In nature, it exists in three forms, namely D-malic acid, L-malic acid and a mixture thereof DL-malic acid.

White crystal or crystalline powder, which has strong hygroscopicity and is easily soluble in water and ethanol. Have a special pleasant sour taste.

Malic acid is stable under normal conditions and hygroscopic when humidity is high

Product Parameter

Test	Requirement	Result
ASSAY (%)	99.0 –100.5	99.2
SPECIFIC ROTATION	–0.1 -- +0.1	0
MELTING RANGE (℃)	127-132	130
WATER INSOLUBLES (%)	MAX 0.1	0.01
SULPHATED ASH(%)	MAX 0.1	0.06
FUMARIC ACID (%)	MAX 1.0	0.56
MALEIC ACID(%)	MAX 0.05	0.01
HEAVY METALS PPM	NMT 10	<10
ARSENIC PPM	MAX 2	<2
LEAD PPM	MAX 2	<2
MERCURY PPM	MAX 1	<1
IDENTIFICATION TEST	IR ABSORPTION	COMFORMED
Conclusion	The product complies with the standard above.

Application

Malic acid is mainly used in the food and pharmaceutical industries.

DL malic acid is used as an acid stabilizer, a color retention agent, a preservative, and an emulsion stabilizer for egg yolk, etc. in the food industry. DL malic acid is also used in pharmaceuticals.