Synonyms

Lactit; Lactositol; Lactobiosit

Definition

Lactitol is manufactured via catalytic hydrogenation of lactose

Einecs

209-566-5

Chemical name

4-O-β-D-Galactopyranosyl-D-glucitol

Chemical formula

C12H24O11

Molecular weight

344,3

Assay

Not less than 95 % on the dry weight basis

Description

Crystalline powder or colourless solution. Crystalline products occur in anhydrous, monohydrate and dihydrate forms. Nickel is used as a catalyst.

Solubility

Very soluble in water

Specific rotation

[α]D 20 = + 13° to + 16° calculated on the anhydrous basis (10 % w/v aqueous solution)

Water content

Crystalline products; not more than 10,5 % (Karl Fischer method)

Other polyols

Not more than 2,5 % (on the anhydrous basis)

Reducing sugars

Not more than 0,2 % (expressed as glucose on dry weight basis)

Chlorides

Not more than 100 mg/kg (expressed on dry weight basis)

Sulphates

Not more than 200 mg/kg (expressed on dry weight basis)

Sulphated ash

Not more than 0,1 % (expressed on dry weight basis)

Nickel

Not more than 2 mg/kg (expressed on dry weight basis)

Arsenic

Not more than 3 mg/kg (expressed on dry weight basis

Lead

Not more than 1 mg/kg (expressed on dry weight basis)