Pyrophyllite quartz

Listing ID #4791282

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Supply Type Manufacturer, Supplier
Preferred Buyer Location All over the world

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Product Details

Pyrophyllite belongs to the montmorillonite group of minerals. It is remarkably similar totalc, which belongs to the same mineral family, except that magnesium is substituted foraluminium. In fact, chemical tests are often requires to tell the two apart.pyrophyllite breaks or exfoliates into leaves when fired to temperatures in excess of800°C as a result of dehydration of its structure.
Structure
Pyrophyllite has a sheet-like structure consisting of two silicate layers being sandwichedbetween gibbsite (Al(OH)3) layers

Properties of Pyrophyllite

		Pyrophyllite is quite soft with a Mohs hardness of 1 to 1.5 and can be scratched witha finger nail
		It can be machined to tight tolerances using conventional maching techniques and tools
		It is thermally stable up to about 800°C when it will begin to exfoliate

Usages

Historically pyrophyllite has been used for carving statues and ornaments owing to its relative ease of machinability. More recently,resistors, transducer cores, high vacuum gaskets and insulators in electron microscopes.
Other uses for pyrophyllite are in:

Ceramic formulations e.g. tile and refractory compositions

Plastics and rubber as a filler

Paint

Insecticides

Main features : High degree of Absorption, free From silica and others Low bulk
density, Very low mositure

Applications : Filler in rubber industry Reinforcing filler against Alumina silicate in rubber Foot wear, General purpose filler , as extended filler in paints

ngredients	MP- 1	MP- 2	AP
SiO2	45.0%	56.0 - 59.0 %	55.39 %
Al2O3	40.0 +/- 2%	33.0 – 35.0 %	34.9 0 %
Fe2O3	00.60%	0.50 %	1.56 %
TiO2	1.60 %	-	0.20 %
MgO	0.50%	-	0.79 %
CaO	0.50%	-	-
Alkalies	-	-	1.34 %
LOI	!2.00 + / - 1 %	5.5 – 6.0 %	5.12 %
Colour	Pinkish white	White	Greyish white
Brightness	High	88	93
Bulk density	-	0.5 gm/cc	1.205gm/cc
Ph	-	7.5	-
Oil absorption ml/100gm	-	45.0	-