D-Mannitol

D-Mannitol

Colorless to white acicular or rhombic columnar crystals or crystalline powders. Odorless, with cool and sweet taste. The sweetness is about 57% - 72% of sucrose. It produces 8.37j of heat per gram, about half of that of glucose. It contains a small amount of sorbitol. The relative density was 1.49. The optical rotation [α] D20 & ordm; - 0.40 & ordm; (10% aqueous solution). Hygroscopicity is very small. The aqueous solution is stable. It is stable to dilute acid and alkali. It is not oxidized by oxygen in the air. Soluble in water (5.6g/100ml, 20 ℃) and glycerin (5.5G / 100ml). It is slightly soluble in ethanol (1.2g / 100ml). Soluble in hot ethanol. It is almost insoluble in most other commonly used organic solvents. The pH value of 20% aqueous solution is 5.5 ~ 6.5.

No.

ITEMS

SPECIFICATION

1.

Appearance

White crystalline powder

2.

Assay

98.0 - 102.0%

3.

Loss on drying

≤0.5%

4.

Acidity

Conform to standard

5.

Identification

Conform to standard

6.

Melting points

166 - 170 ℃

7.

Solubility

Freely soluble in water,very slightly soluble in alcohol

8.

Solution clarification

Conform to standard

9.

Specific rotation

+23.0° - +25.0°

10.

Conductivity

≤20us/cm

11.

Residue on ignitioin

≤0.1 %

12.

Reducing Sugars

≤0.1 %

13.

Chloride

≤30 ppm

14.

Sulfate

≤100 ppm

15.

Oxalate

≤200 ppm

16.

Heavy metal

≤10 ppm

17.

As

≤2 ppm

18.

Nickel

≤1 ppm

19.

Bacterial Endotoxin

<2.5 IU/g

20.

TAMC

≤1000 cfu/g

21.

TYMC

≤100 cfu/g

22.

E. Coli

Negative

23.

Salmonella

Negative

Application:

Low calorie sweeteners; gummy and candy anti sticking agents; nutritional supplements and tissue improvers; moisturizers.

Packaging:

25kg bag, or as customer’s requirement

Storage condition:

Store in a dry and cool place away from light.

Shelf life:

2 years