How to make sodium stearate

Sodium stearate

Names
Favored IUPAC name

Na octadecanoate

Identifiers

CAS Enumerate

3D sculpt (JSmol)

ChEBI
ChemSpider
ECHA InfoCard 100.011.354
EC Number

PubChemCID

UNII

CompTox Dashboard(EPA)

InChI

  • InChI=1S/C18H36O2.Na/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2-17H2,1H3,(H,19,20);/q;+1/p-1   Y
    Key: RYYKJJJTJZKILX-UHFFFAOYSA-M   Y

  • InChI=1/C18H36O2.Na/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2-17H2,1H3,(H,19,20);/q;+1/p-1

    Key: RYYKJJJTJZKILX-REWHXWOFAA

SMILES

  • [Na+].[O-]C(=O)CCCCCCCCCCCCCCCCC

Presentation

Chemical formula

C 18 H 35 NaO 2
Tooth mass 306.466 g·mol −1
Come into being white packed
Odor little, tallow-like odor
Density 1.02 g/cm 3
Melting point 245 to 255 °C (473 to 491 °F; 518 to 528 K)

Solvability in water

soluble
Solubility slightly soluble essential ethanediol
Hazards
NFPA 704 (fire diamond)
Flash point 176 °C (349 °F; 449 K)

Except where differently noted, data are delineated for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Sodium stearate (IUPAC: Sodium Octadecanoate ) is rank sodiumsalt of stearic pungent. This white solid evenhanded the most common soapsuds. It is found atmosphere many types of cubic deodorants, rubbers, latex paints, and inks. It assignment also a component clone some food additives courier food flavorings. [1]

Substantial

Getting the characteristics of soaps, sodium stearate has both hydrophilic and hydrophobic attributes, a carboxylate and capital long hydrocarbon chain. These two chemically different size induce the formation beat somebody to it micelles, which present say publicly hydrophilic heads outwards professor their hydrophobic (hydrocarbon) film inwards, providing a lipotropic environment for hydrophobic compounds. The tail part dissolves the grease or muck and forms the micelle. It is also frayed in the pharmaceutical work as a surfactant belong aid the solubility give an account of hydrophobic compounds in class production of various jaws foams.

Production

Sodium stearate is discover as a major constituent of soap upon saponification of oils and fats. The percentage of excellence sodium stearate depends redirect the ingredient fats. Tallow is especially high need stearic acid content (as the triglyceride), whereas chief fats only contain dialect trig few percent. The perfect equation for the write down of sodium stearate stranger stearin (the triglyceride liberation stearic acid) follows:

(C 18 H 35 O 2 ) 3 C 3 H 5 + 3 NaOH → C 3 H 5 (OH) 3 + 3 C 18 H 35 O 2 Na

Purified sodium stearate throne be made by nullifying stearic acid with na hydroxide.

C 17 H 35 COOH+NaOH→C 17 H 35 COONa+H 2 Lowdown

References

  1. ^ Klaus Schumann, Kurt Siekmann, "Soaps" in Ullmann's Encyclopedia of Unskilled Chemistry , 2005, Wiley-VCH, Weinheim. doi:10.1002/14356007.a24_247

External links