Ores And Minerals

We offer the best product range of Precipitated Silica, Micronized Talc, Barytes and Micronized Calcite.

Precipitated Silica

The company provides the best quality Precipitated Silica for various industrial applications. Precipitated Amorphous Silica has high surface area and Oil/ Water Absorption with low bulk density. Apart from that, we are one of the major Biochemically Precipitated Silica Suppliers in India. We are the global leaders today in the manufacture of precipitated calcium silicates having following unique properties: Very High Water / Oil Absorption : Upto 600% has been achieved and efforts are in progress to achieve the 800% mark. Most competing products have water-absorption upto 300% maximum only.

Very Low Bulk Densities :Upto 0.04 gm/cc has been achieved whereas competing products have 0.12 gm/cc minimum.
Very High Surface Areas : Upto 600 m2/gm has been achieved.

PRODUCTION FACILITIESPrecipitation is carried out in microprocessor controlled batch reaction vessels, followed by filler-presses/vaccum filters and flash/spray driers and finally micro-mill with classifier for micronization wherever required. APPLICATIONS (PRECIPITATED SILICAS)UNISIL NK precipitated silicas having high absorption capacities can be used to provide one or several of the following properties:

Free - flow
AnticakingReinforcement
Rheology Control
Thixotropy
Flatting
Insulation
Suspension
Carrying Agent
Matting
Lightness
Inert filler

PESTICIDES

For improvement in the suspension power and as a carrier for the active igredients, specially malathion, acephate and isoproton
Based formulations.
For improvement of free-flow characteristics and storage stability.
As a grinding auxillary.
Pesticides Industry is one of the largest consumers for UNSIL NK grades which Provide excellent results and improve quality.

FEEDSTUFFS & FOOD ITEMS

Improvement in free-flow properties and storage stability of table salt, spices etc.
Anticaking of milk extenders and fat concentrates, feedstuff urea & mineral mixtures.
Conversion of 75% acqueous choline chloride solution into stable 50% powder form.
Conversion of liquid active substances into powder form, e.g. ethoxyquin, flavours & fragrances.

CHEMICALS

Conversion of liquids to free flowing powder form (e.g. SP antioxidant & other rubber chemicals).
As a grinding aid (e.g. with sulphur).
For anti-caking & free flow. (e.g. Detergents).

PLASTICS & POLYMERS

To provide reinforcement properties in PP, PVC, PE and Polystyrene based master batches.
As an anti-blocking agent in blown films & foils.
Improvement in the mechanical characterstics of PVC flooring.
With Phenol + melamine resins for anti-caking during storage and improvement in dosing properties of molding compounds.
Auxillary during production of polychloroprene based adhesives.
With thermoplastic rubber for reduction in abrasion and increase in dimensional heat stability.
Reinforcement of Natural, SBR, Silicone, EVA, Nitrile, EPDM & other rubbers.

OTHER PRODUCTS

Liquid Systems : Due to high surface area they function as clarifying and adsorption agents (e.g.beverages).
Adhesives : To adjust rheology and provide reinforcement.
Greases / Lubricants : For rheology control.
Paint, Dyes & Printing inks :As a flatting / matting agent to reduce gloss or as a filler.
Paper Industry : Provides lightness, whiteness & improves mechanical properties.
Toothpaste & Polishes : As a mild abrasive and for rheology control.
Pharmaceuticals :As a processing aid in tabletting & pelletizing.
Cosmetics : For rheology control.

UNISIL PRECIPITATED SILICAUNISIL precipitated Silicas are available in various combinations of physical properties such primary and secondary particle size, surface area, bulk density, absorption capacity etc. It is available in three physical form Categories:-

Powder Products
Spray Dried Granules
Compacted Pellets

Physiochemical Properties Of Precipitated Silica (Powder Products)

PROPERTY		UNIT	UNISIL NK-70	UNISIL NK-1	UNISIL NK-2	UNISIL NK-3	UNISIL NK-19	UNISIL NK-4	UNISIL NK-7
Appearance		-------	Snow White free flowing powder
Behaviour towards Water		-------	Hydrophilic
Moisture (105^oC)		%	5 ± 1.5	5 ± 1.5	5 ± 1.5	5 ± 1.5	5 ± 1.5	5 ± 1.5	5 ± 1.5
Ignition loss (900oC for 2 hrs)		%max	6	6	6	6	6	6	6
Surface Area (BET)		m2/gm	100-115	130-150	140-170	160-200	240-260	115-125	290-320
Average Particle size	Primary	nm	10/12/14	18-20	16-18	12/14/14	08/10/14	10/12/14	06/08/14
Average Particle size	Secondary	µ m	14-16	08/10/14	10/12/14	10/12/14	12/14/14	08/10/14	08/10/14
Water Absorption		%	230-260	240-260	240-260	240-260	300-350	260-280	400-450
Oil absorption		%	225-255	235-255	235-255	235-255	295-345	255-275	395-495
pH (5% acq. Solution)		----	6.2-7.0	6.2-7.2	6.2-7.5	6.2-7.0	6.2-7.0	6.5-7.0	6.2-7.2
Residue on 300 mesh		% max	1	0.5	1	2	1	0.5	0.5
Specific Gravity		-------	2 ± 0.2	2 ± 0.2	2 ± 0.2	2 ± 0.2	2 ± 0.2	2 ± 0.2	2 ± 0.2
Refractive Index		--------	1.46	1.46	1.46	1.46	1.46	1.46	1.46
Al₂O₃		%(max)	0.2	0.2	0.2	0.2	0.2	0.2	0.2
R2O3		%(max)	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Fe as Fe₂O₃		%(max)	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Storage Stability		PRACTICALLY UNLIMITED UNDER FAVOURABLE TRANSPORT/STORAGE CONDITIONS
Packing		Kgs/bag	25	25	25	25	25	25	25

Physiochemical Properties Of Precipitated Silica (Powder Products)

PROPERTY	UNIT	UNISIL NK-3 HS
Appearance	------	Snow White free flowing Powder
Behaviour towards water	------	Hydrophilic
Moisture (105^oC)	%	5 ± 1.5
Ignition loss (900^oC for 2 hrs)	% max	6
Surface Area (BET)	m2/gm	150 ± 10
Average Particle size (d50)	nm	03/05/14
Water Absorption	%	240-270
Oil absorption	%	235-265
Bulk Density	gm/cc	0.06-0.08
pH (5% acq. Solution)	-------	6.8 ± 0.5
Residue on 300 mesh	% max	0.1
Specific Gravity	-------	2 ± 0.02
Refractive Index	-------	1.46
SiO₂	%	98-99
Al₂O₃	% max	0.2
R₂O₃	% max	0.3
Fe as Fe₂O₃	% max	0.03
Storage Stability	PRACTICALLY UNLIMITED UNDER FAVOURABLE TRANSPORT/STORAGE CONDITIONS
Packing	Kgs/bag	25

Physiochemical Properties Of Precipitated Silica (Spray Dried Granules)

PROPERTY		UNIT	UNISIL NK-3 (Spray Dried)
Appearance		-------	Snow White free flowing powder
Behaviour towards Water		-------	Hydrophilic
Moisture (105^oC)		%	5 ± 1.5
Ignition loss (900^oC for 2 hrs)		% max	170 ± 15
Surface Area (BET)		m2/gm	290-320
Average Particle size	Primary	nm	15
Average Particle size	Secondary	µ m	5
Water Absorption		%	240-260
Oil absorption		%	235-255
pH (5% acq. Solution)		----	6.2-7.0
Specific Gravity		-------	2 ± 0.2
Refractive Index		--------	1.46
Al₂O₃		%	0.2
R₂O₃		%	0.2
Fe as Fe₂O₃		%(max)	0.3
Arsenic (As)		ppm max	5
Lead (Pb)		ppm max	5
Storage Stability		PRACTICALLY UNLIMITED UNDER FAVOURABLE TRANSPORT/STORAGE CONDITIONS
Packing		Kgs/bag	25

Physiochemical Properties Of Precipitated Silica (Pelletized Products)

PROPERTY		UNIT	UNISIL NK-3 (Spray Dried)
Appearance		-------	Snow White free flowing powder
Behaviour towards Water		-------	Hydrophilic
Moisture (105^oC)		%	5 ± 1.5
Ignition loss (900^oC for 2 hrs)		% max	170 ± 15
Surface Area (BET)		m2/gm	290-320
Average Particle size	Primary	nm	15
Average Particle size	Secondary	µ m	5
Water Absorption		%	240-260
Oil absorption		%	235-255
pH (5% acq. Solution)		----	6.2-7.0
Specific Gravity		-------	2 ± 0.2
Refractive Index		--------	1.46
SiO₂		%	98-99
Al₂O₃		%	0.2
R₂O₃		%	0.2
Fe as Fe₂O₃		%(max)	0.03
Arsenic (As)		ppm max	5
Lead (Pb)		ppm max	5
Storage Stability		PRACTICALLY UNLIMITED UNDER FAVOURABLE TRANSPORT/STORAGE CONDITIONS
Packing		Kgs/bag	25

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Micronized Talc

We provide excellent quality Micronized Talc in the marketplace. Micronized Talc Powder is white moisture less chemical processed from Magnesium - Silicate Hydrate. It is used as reinforcing filler agent in plastic industry. It is also extensively used in cosmetic industry. Further, we are a prominent Micronized Talcum Manufacturer and one of the chief Exports of the same.

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