OXY
O X Y
( 205 )
47. Hyperoxymuriatic acid
42.2 Barytes10.8 Water
100.0It is not ufed.
Hyperoxymuriat of Strontian. *
This fait is prepared in the fame manner asthe foregoing, and is feparated, like that, fromthe Ample muriat by phofphat of filver. Itcrydallizes in needles, is deliquefcent, andis more foluble in alcohol than the muriat ofdrontian. It melts in the mouth immediately,and produces cold. It is compofed of4 6. Hyperoxymuriatic acid26. Strontian28. Water
100
It is not ufed.
Hyperoxymuriat of Lime.
This fait is obtained pure in the manneralready defcribed. It is extremely deliquefcent,and melts at a very gentle heat in its water ofcryftallization. It is very foluble in alcohol,has a (harp bitter tafte, and produces much coldin the mouth. It confifts of
55.2 Hyperoxymuriatic acid
28.3 Lime
16.5 Water
100.0
Although the pure fait is not made ufe of,yet the entire liquor formed by faturating a verythick milk of lime with oxymuriatic acid gas,is extenfively employed as a bleaching materialby the callico printers. It is faid to bleacheffectually the unprinted ground, withouttouching the coloured pattern, and this nodoubt is apparently the cafe, but the remarkablefugitivenel's of the colours of modern printedcallicoes is in all probability to be mainly attri-buted to the fubditution of this more fpeedymethod of colouring, to the old and moretedious, but fafer mode.
Hyperoxymuriat of Magnesia.
The manner of preparation, and the chemicaland phyfical properties of this fait, are nearlythe fame with thofe of the preceding. It iscompofed of 60 Hyperoxymuriatic acid25.7 Magnefia
14.3 Water
100.0
Hyperoxymuriat of Alumine.
Pure and recently precipitated alumine, whentreated in a W oulfe’s apparatus, in the manneralready mentioned, is difl’olved; and upon pour-ing fulphuric acid into the liquor, a drongodour of hyperoxymuriatic acid is perceptible.This fait however cannot be obtained in afeparate ftate.
It is made no ufe of.
PALLADIUM. SeePLATiNA.
PARTING
Is a term ufed by aflayers, to exprefs thereparation of gold from filver.. For an accountof this procefs, fee Assay, and Gold, Purifi-fation of.
PASTEL. See Woad.
PEARL. See Shell.
PEARLASH. See Carbonat of Potash.
PEARLSPAR. See Braunspath.
Peat , or turf as it is called by fome, is acongeries of vegetable matter, in which theremains of organization are more or lefs vifible,con lfting G f trunks of trees, chiefly oak, fir,’ alder, hazle, and willow of leaves andfiring Particularly hazle nuts; and of long. ?L fibreS ’. wblcb appear to be for the modP remains of the fphagnum paluftre, and
other aquatic modes. It occurs for the moltpart in extenfive beds called peat moflfes, eitheroccupying the furface of the foil, or covered tothe depth of a few feet with fand, gravel, andother alluvial matters. It is met with abun-dantly in the Northern and in fome of thecentral didrifts of Europe , in all moift unculti-vated mountainous trafts, as high as vegetationextends; it is alfo frequent in low valiies andfenny plains ; and in feveral parts of the Wef-tern fhore of Great-Britain runs into the fea,to an unknown extent, as in the harbour ofOban in Argylelhire; in Lancafliire, a little tothe North of Liverpool; and near Towyn inMerioneth (hire. The depth of peat modes isvery various, from a few feet to twelve orfifteen yards, or even more. The confidenceof peat is equally various, being fometimes ina femifluid date, forming a black impalpable
* Chenevii.