Zinc distearate

SYNS DIBASIC ZINC stearate OCTADECANOIC ACID, ZINC SALT STEARIC ACID, ZINC SALT ZINC DISTEARATE ZINC OCTADECANOATE... [Pg.1452]

Oil-Water Versus Water-Oil Emulsions. If oil and water are vigorously shaken, they form a dispersion of water droplets in oil and oil droplets in water. When shaking is stopped the phases start to separate small water drops fall toward the interface, and oil drops rise. The emulsion quickly breaks. Adding an emulsifier to the system changes the outcome after standing, one phase becomes continuous, while the other remains dispersed. The nature of the emulsion is determined by the emulsifier. As a general rule, the continuous phase is the one in which the emulsifier is soluble. Thus sodium stearate promotes an oil-in-water (o/w) emulsion, while zinc distearate promotes a water-in-oil (w/o) emulsion. Several qualitative theories have been advanced to explain this empirical mle. [Pg.2210]

The oriented wedge theory states that the emulsifier at the interface is wedge shaped. The ionized end of a sodium soap has a wider (effective) radius than the hydrocarbon chain, hence the oil-water interface should be curved with the convex side oriented toward the water phase. This favors oil droplet formation, hence gives an o/w emulsion. The polar end of zinc distearate, on the other hand, is smaller than the two hydrocarbon chains, the interface is convex toward the water phase, and a w/o emulsion is formed. [Pg.2210]

A second theory considers the relative ease with which the two types of droplets can coalesce. Upon shaking, drops of both phases are formed. Sodium stearate ionizes, and the electrical potential hinders approach and coalescence of oil droplets water droplets, on the other hand, experience no such hindrance and readily touch and coalesce. Zinc distearate, being un-ionized, does not interfere with the mutual approach of oil droplets, whereas van der Waal s forces favor subsequent coalescence. Thus the type of emulsion formed depends on the relative kinetics of oil-oil and water-water coalescence. [Pg.2211]

Cecavon-, dibasic zinc stearate HyQual stearic acid zinc salt zinc distearate zinc soap. [Pg.832]

As only limited data are available for zinc distearate the assessment was based on toxicological data of other zinc compounds like zinc gluconate, zinc sulphate or zinc oxide assuming that the availability of zinc ions is controlling the toxicological behaviour. It is further assumed that calcium does not contribute to adverse effects at the expected concentration levels. [Pg.133]

ZINC DISTEARATE (557-05-1) Combustible solid (flash point 530°F/277°C). Dust and powder form explosive mixture with air. Violent reaction with strong oxidizers, ammonium nitrate. Incompatible with nitrates. Flow or agitation of substance may generate electrostatic charges due to low conductivity. [Pg.1249]

Zinc distearate, pure 4158 Zincon Dandruff Shampoo 3232... [Pg.1135]

SYNONYMS dibasic zinc stearate, octadecanoic acid zinc salt, stearic acid zinc salt, zinc distearate, zinc ocatadecanoate, zinc salt of stearic acid. [Pg.995]

Synonyms/Trade Names Dibasic zinc stearate. Zinc salt of stearic acid. Zinc distearate... [Pg.339]

CAS-No [557-05-1] stearic acid, zinc salt zinc distearate zinc octadecanoate... [Pg.933]

CAS 557-05-1 EINECS/ELINCS 209-151-9 Synonyms Dibasic zinc stearate Octadecanoic acid, zinc salt Stearic acid, zinc salt Zinc distearate Zinc octadecanoate Zinc soap Classification Sat. aliphatic carboxylic acid salt Definition Zinc salt of stearic acid Empirical C,6HTOO,Zn Formula Zn(C,8H,502)2... [Pg.1426]

Zinc distearate. See Zinc stearate Zinc dithionite. See Zinc hydrosulfite Zinc ditolyl sulfinate dihydrate... [Pg.4750]

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