Sorbitol

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Product Code : RSC 05

Product Description

Sorbitol

Sarbitol a hexavalent sugar alcohol is a common constituent in many edible fruits. Although known since many decades, it could not find any commercial applications, as its extraction from fruits was very expensive. Its importance was recognized later only after the large scale economical manufacture of sorbitol from the commercially available glucose became possible by catalic reactions with hydrogen.
Sorbitol Specifications

S.No	Tests	Specification – IP	Specification – Tech
1	Description	Clear, Colourless or Faintly Yellow, Syrupy Liquid	Clear, Colourless or Faintly Yellow, Syrupy Liquid
2	Solubility	As per IP	-
3	Identification	As per IP	-
4	Acidity or Alkalinity	Shall require not more than 0.2 ml of 0.01 M NaOH or 0.3 ml of 0.01 M Hcl	Shall require not more than 0.2 ml of 0.01 M NaOH or 0.3 ml of 0.01 M Hcl
5	Optical Rotation	+ 1.5 to + 3.5 Deg	+ 0 to 1.5 Deg
6	Refractive Index	1.455 to 1.465 at 20 C	1.455 to 1.465 at 20 C
7	Relative Density	Not less than 1.285 at 20 C	Not less than 1.285 at 20 C
8	Clarity & Colour of Solution	Clear and Colourless	Clear and Colourless
9	Arsenic	Not more than 2 PPM	Not more than 2 PPM
10	Heavy Metals	Not more than 10 PPM	Not more than 10 PPM
11	Chloride	Not more than 50 PPM	Not more than 50 PPM
12	Nickel	Not more than 1 PPM	Not more than 1 PPM
13	Sulphate	Not more than 125 PPM	Not more than 125 PPM
14	Reducing Sugars	Shall require not less than 12.8 Ml of 0.05 M Sodium Thio Sulphate	Shall require not less than 12.8 Ml of 0.05 M Sodium Thio Sulphate
15	Sulphated Ash	Not more than 0.1%	--
16	Assay for Solid Matter	68 to 72% w/w	--
17	Assay for Polyols	Not less than 62% w/w	Not less than 62% w/w

Applications:

Commercially, Sorbitol is generally marketed in the form of 70% solution, as a clear colourless or fainty yellow syrupy liquid, with a sweet cooling taste. It is chemically classified as a polyhydric alcohol. Being a hexavalent alcohol, it is closely related chemically to the bivalent glycol, ethylene glycol. However, unlike glycols and glycerol, sorbitol occurs as a white solid substance. In an aqueous solution of 70 % of w/w strength.
Sorbitol is chemically inert and therefore compatible with many chemical substances, which makes it useful in cosmetic and pharmaceutical formulations and minimize the dangers of any side reactions. Sorbitol liquid (70 %) hardly reacts to fluctuations in environmental humidity. This makes sorbitol liquid a good humectant (water stabilizer). This makes the use of sorbitol economical. The non-volatile nature of sorbitol liquid also makes it useful either alone or in combination with glycerol, in textile dressing, dyeing and printing.

To summarise the principal advantages which sorbitol exhibits over other polyols are: