INDEX Sorbitol

Soltzberg, Goepp and Freudenberg10 proved the constitution of arlitan by a synthetic method. They obtained a liquid tetramethyl derivative of arlitan, characterized it by its boiling point, density and refractive index, and compared it with 2,3,5,6-tetramethyl-l,4-anhydro-D-sorbitol (V) synthesized by the following method. Tetramethyl-D-glucofuranose... 

The floodability index was calculated from the dispersibility, cohesion, angle of fall, and flowability index parameters. The values for this property ranged from 55 to 76. The most floodable material was lot 4405K5, and the least floodable material lot was the instant sorbitol, which is in agreement with the flow index and the particle size data. The... 

The second method, using refractive index (RI) detection, is carried out using a resin-based polymer column. Sucrose elutes first from this column, followed by glucose, fructose and then sorbitol. This type of column is generally more robust than the amino-bonded column and if handled well will last much longer however, it is around three times more expensive. The method has been collaboratively tested for the analysis of sugars and sorbitol in fruit juices by the IFU. The HPLC conditions are given below. 

Separately inject about 50-p.L portions of the Assay Solution and Standard Solutions into the chromatograph, record the chromatograms, and measure the responses for the major peaks. The elution order for the standards is maltose, maltitol, dextrose, and sorbitol. The differential refractive index detector should show similar response factors. 

Chem. Descrip. Sorbitol CAS 50-70-4 EINECS/ELINCS 200-061-5 Uses Humectant, plasticizer, softener, and lubricant for personal care prods., adhesives, leather, and paper coatings humectant, plasticizer, softener, lubricant, sweetener for oral hygiene prods, such as dentifrices, mouthwashes, oral dosage pharmaceuticals Features Adds sweet taste and pleasant mouthfeel to orals Properties Clear colorless sol n. water-sol. sp.gr. 1.29-1.32 ref. index 1.455-1.470 pH neutral Liponic76-NC [Lipo]... 

Definition Triester of oleic acid and a PEG ether of sorbitol, avg. 18 moles EO Properties M.w. 1838.60 dens. 1.028 flash pt. > HOC ref. index 1.4680 (20C) nonionic Toxicology TSCA listed... 

Here, w,- is the weight firaction of the component and d-, the proton density. The index B refers to the biomass, S to sorbitol and W to water. The comparison between the calculated and the measured fractions is shown in Fig. 3. 

Keywords refractive index, optical clarity, haze, transparency, nucleation, opacity, clarifers, sorbitol, crystallization. 

Toothpaste Sorbitol is used in toothpastes for three reasons as a sweetener, as a humectant, and as an emulsifier. It has a low glycemic index and is safe for teeth (it is not metabolized by oral bacteria), and because of that most toothpastes contain D-sorbitol or glycerin (or both) as humectants. Its sweetness is not as intense as desired by consumers so many producers add saccharin to increase the sweet taste, achieving a final combination that... 

Regulatory DOT not regulated Europe EINECS Canada DSL Australia AlCS Properties Lt. to straw-colored liq., char, mild odor sol. in IPM, safflower oil, min. oil, oleyl alcohol, octyl palmitate partly sol. in 95% ethanol, propylene glycol, 70% sorbitol insol. in water m.w. 846.87 sp.gr. 0.860-0.880 m.p. -13.36 HLB 6 add no. 10 max. sapon. no. 115-135 flash pt. 505.4 F ref. index 1.447-1.467 Toxicology LD50 (oral, rat) > 20 g g nonirritating to eyes and skin nonmutagenic (Ames assay) TSCA listed... 

Sorbitol esters can be analyzed using a Cd column with various ratios of isopropanol/water as mobile phase (160,161). Mono-, di-, and triesters with palmitic, stearic, oleic, isostearic, and sesquioleic acid were analyzed, including commercial products. Ultraviolet detection at 220 nm is appropriate. Sucrose esters may be analyzed in an analogous manner, with a Cig column, methanol/ water or methanol/isopropanol mobile phase, and detection by refractive index or UV absorbance at 220 nm (162). 

The first three materials listed in Table 11.6 are amorphous thermoplastics. CR-39 is a cross-linked, amorphous network (see Section 17.2). Most highly crystalline polymers are hazy because the crystals and the amorphous phases do not have the same index of refraction and light is scattered at the interfaces. Poly(4-methyl-l-pentene) is unusual in that the two phases have nearly the same index of refraction. The haze in crystalline polymers can be reduced if the crystallite size is very small. A sorbitol-based clarifier for polypropylene is bis(3,4-dimethyldibenzylidene) [25]. It acts as a nucleating agent and makes it possible to produce a water bottle with PET-like clarity. 

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