555-43-1 Usage
Description
Glyceryl tristearate is prepared by reacting glycerin with stearic
acid in the presence of a suitable catalyst such as aluminum oxide.
It also occurs in many animal and vegetable fats such as tallow
and cocoa butter. It is a white, microfine crystalline powder. It is
soluble in hot alcohol, benzene and chloroform, very slightly soluble
in cold alcohol, in ether and in petroleum ether, and insoluble
in water.
Uses
Different sources of media describe the Uses of 555-43-1 differently. You can refer to the following data:
1. Present in animal and vegetable fats.
2. In textile sizes. Formerly in making candles.
3. tristearin is an emollient.
4. Glyceryl Tristearate is a formulation aid, lubricant, and release agent, prepared by reacting stearic acid with glycerol in the presence of a suitable catalyst. The additive is used as a crystallization accelerator in cocoa products; a formulation aid in confections; a formulation in fats and oils; and a winterization and fractionation aid in fat and oil processing.
Definition
ChEBI: Tristearoylglycerol is a triglyceride that is glycerol in which all three hydroxy groups have been formally esterified with stearic acid. It has a role as a plant metabolite and a Caenorhabditis elegans metabolite. It derives from an octadecanoic acid.
Flammability and Explosibility
Nonflammable
Safety Profile
When heated to
decomposition it emits acrid smoke and
irritating fumes.
Check Digit Verification of cas no
The CAS Registry Mumber 555-43-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,5 and 5 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 555-43:
(5*5)+(4*5)+(3*5)+(2*4)+(1*3)=71
71 % 10 = 1
So 555-43-1 is a valid CAS Registry Number.
InChI:InChI=1/C57H110O6/c1-4-7-10-13-16-19-22-25-28-31-34-37-40-43-46-49-55(58)61-52-54(63-57(60)51-48-45-42-39-36-33-30-27-24-21-18-15-12-9-6-3)53-62-56(59)50-47-44-41-38-35-32-29-26-23-20-17-14-11-8-5-2/h54H,4-53H2,1-3H3
555-43-1Relevant articles and documents
Ollivon,Perron
, p. 395,396,400-403,407-409 (1979)
Perron et al.
, p. 11,15,19,20,21,23,25,26 (1969)
Synthesis of glycerol monostearate over K2CO3/γ-Al2O3 catalyst
Zhou, Lu,Gu, Yi,Hong, Mei,Xiao, Guomin
, p. 458 - 462 (2015/01/30)
The synthesis of glycerol monostearate by transesterification of methyl stearate with glycerol can be carried out in the presence of basic catalyst. The absence of solvent in the reaction system would result in a low conversion of methyl stearate as a consequence of low miscibility between reactants. The addition N,N′-dimethyl formamide as solvent improved the activity of the catalyst and selectivity to glycerol monostearate. Different K2CO3-containing γ-Al2O3 catalysts were made and used in the reaction. The results showed that catalyst with higher basicity could lead to better reactant's conversion but poorer selectivity to glycerol monostearate and the optimal load of K2CO3 inducing the highest yield to glycerol monostearate was 20 % mass fraction of γ-Al2O3 supporter. At a glycerol/methyl stearate ratio of 6:1, 165°C, 2 wt. % catalyst amount, a yield of 82.21 % of glycerol monostearate was achieved after 5h.
MALLEABLE, BIODEGRADABLE HEMOSTATIC AGENT
-
, (2012/10/18)
A malleable, biodegradable hemostatic agent is provided that can be used for mechanical sealing of bleeding bone tissue, as well as a method for forming a malleable, biodegradable hemostatic agent of this type, and a medical implant having a coating that includes a malleable, biodegradable hemostatic agent of this type. The malleable, biodegradable hemostatic agent contains (a) at least one saturated glycerol-1,2,3-tri-fatty acid ester having a melting temperature above 37° C., (b) at least one filling agent present in particulate form, at least in part, and having a melting temperature above 37° C., and (c) at least one compound having a melting temperature not above 37° C. and a solubility at a temperature of 25° C. of less than 50 grams per liter of water.