A series of mixed rubber recipes with variations in the filler loading levels of N234, N330 and N660 carbon blacks in addition to variations in non-black fillers which included Hi-Sil 210 precipitated hydrated silica
(with and without organosilane coupling agent TESPT), clay and ground calcium carbonate (whiting) are shown in variations of table 1.
A Sodium monofluorophosphate, Calcium Carbonate, 7.4 Water, Sorbital, Hydrated Silica
, Sodium Lauryl Sulphate, Flavor, Cellulose Gum, Magnesium Aluminum Silicate, Sodium Carbonate, Sodium Saccharin, Sodium Bicarbonate, Methylparaben, Propylparaben 2.
was obtained in the process of precipitation from aqueous solutions of sodium silicate and sulfuric acid, as it was described earlier .
[Na.sub.2]Si[O.sub.3] can further be transformed into precipitate of hydrated silica
(silica) and be separated from the filtrate, while aluminium still remains in the form of NaAl[O.sub.2] in the filtrate after adjusting the filtrate pH value between 8 and 9.
London, Nov 01 (ANI): Three billion years old light-coloured piles of hydrated silica
on a volcanic cone are the evidence of most recent habitable microenvironments on Mars, observes NASA.
The website Skin Deep, a free online safety guide to cosmetics and personal care products published by the non-profit Environmental Working Group, lists Tom's of Maine Natural Antiplaque Tartar Control Plus Whitening Toothpaste--which makes use of all-natural hydrated silica
, not hydrogen peroxide, for whitening and stain removal--as one of the safest kinds of whitening toothpastes out there today.
Nearby, we discovered deposits of hydrated sulfate minerals (containing [SO.sub.2] and [H.sub.2]O in their structure) and of nearly pure fine-grained hydrated silica
Initially, the term of alkali-reactive aggregates was applied to rapid reactive, porous and occasionally hydrated silica
minerals, such as opal or chalcedony, as well as a variety of heterogenic rock types, including chert, flint or certain types of volcano glass, which could be extremely reactive even during standard field performance .
Phytoyliths are particles of hydrated silica
formed in living plants that often remain in the fossil record long after the plant has died and decayed.
Biological systems are capable of forming amorphous microparticles of hydrated silica
, but they cannot form the crystalline state of silica.
The clay contained the hydrated silica
(formerly obtained from chrysocolla) and the hydrated aluminum (formerly obtained from turquoise).