Show is an unusual type of clay possessing remarkable colloidal properties states W M myers assistant mineral technologist department of the interior in serial 2587 of the bureau of mi mines nes is a hydrous aluminum silicate combined with varying amounts of the alka lies sodium and potassium and the alkaline earths calcium and magnesium no che chemical formula can be given for as its chemical composition is too indefinite is a hydrous aluminum silicate combined with idith al kalies and alkali earths and is very similar to so much so that it is impossible to make a definite decision and state whether a mineral specimen under examination should be called of bonite one of the most characteristic properties of is its ability to absorb large quantities of water and to forn form L colloidal jellylike suspensions when mixed with water some forms of do not form these suspensions serial 2289 issued some time ago by the bureau of mines listed various uses of in addition to these uses it has been discovered that an excel excellent fent material for bleaching oils may be prepared from this material california is used and to avoid the mechanical difficulties which arise in handling the jellylike colloidal suspension a is chosen which does not form these suspensions this or orill onite is treated with sulphuric acid which removes the kalies alkalis al a alkaline earths and some of the aluminum leaving a residue con composed imposed of e extremely ct remely fine grains of aluminum silicate this material when substituted for fullers earth displays riar remarkable kable efficiency in bleaching oils in fact in some tests it has shown a capacity for this purpose 16 times that of corresponding amounts of fullers earth |