Malic Acid

Synonym(s)

: 2-Hydroxy Succinic acid, 2-Hydroxy Butanoic acid

Mol. Formula

: C4H6O5

EC / List no.

: 230-022-8

CAS no.

: 6915-15-7

Molecular weight

: 134,09

Malic acid is a 2-hydroxydicarboxylic acid, succinic acid in which one of the hydrogens attached to a carbon has been replaced by a hydroxy group. It has a role as a food acidity regulator and main metabolite. It is 2-hydroxydicarboxylic acid and C4-dicarboxylic acid. It is obtained from succinic acid. It is a malate (2-) and a malate conjugate acid.

Application

» This substance is used in the following products: fertilizers and laboratory chemicals.
» This substance is used in the following areas: agriculture, forestry and fisheries, health care, scientific research and development, construction and civil works.
» Used in the manufacture of chemicals, fabricated metal products, machinery, vehicles and furniture.
» Used in machine wash fluids/detergents, automotive care products, paints and coatings or adhesives, fragrances, air fresheners, coolants in refrigerators and oil-based electric heaters.

Product Specifications

Physical and Chemical Properties
» Appears in the form of white or almost white crystalline powder or granules.
» It has a characteristic odor and a sour taste.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	131
Boiling point	°C	321.5
Vapor pressure	Pa	0	25 °C
LogP		-6.14	20 °C
Density	g/cm3	1.615	20 °C
Solubility	g/ L	674	20 °C, soluble with water
pKa		3.51	20 °C
Viscosity	mPa.s	6.5	25 °C
pH		2.34	1% solution