Electrical Grade Silica

PRODUCT

Electrical grades crystalline silica powder are most suitable as fillers for making epoxy impregnation compound to be used in high-tension electrical transformer systems. Our silica products enhance the physical mechanical and electrical properties of the compound, and are ideal as fillers for the impregnation/insulation compound.

MAJOR APPLICATIONS

Impregnation/insulation compound for electrical components and high tension transformers; induction material for APG; Epoxy encapsulation compound and Superior ceramic coating etc.

SPECIFICATION

Items/Specs			Common
Items/Specs			DG-300	DG-400	DG-600	DG-1000
Chemical Compositions	% Min	SiO₂	99.6	99.6	99.6	99.6
	PPM Max	Al₂O₃	800	800	800	800
		Fe₂O₃	100	100	100	100
		CaO+MgO	200	200	200	200
		Na₂O-K₂O	200	200	200	200
	% Max	Moisture	0.01	0.01	0.01	0.01
	% Max	Ignition Loss	0.01	0.01	0.01	0.01
Water extract (1:10) Max		Na+PPM	10	10	10	10
		Cl+PPM	10	10	10	10
		Fe₃+PPM	10	10	10	10
		Conductivity (us/cm)	10	10	10	10
Ph			5.5-7.5	5.5-7.5	5.5-7.5	5.5-7.5
Specific Gravity (g/cm³)			2.65	2.65	2.65	2.65
Mohrs scale			7	7	7	7
Hydrophobic nature (Min)			/	/	/	/
Median Diameter D50 um			20-25	15-20	10-15	8-10
Specific Area cm²/g			1700-2200	2000-2400	2300-3000	3000-4000

Items/Specs			Activated
Items/Specs			DGH-300	DGH-400	DGH-600	DGH-1000
Chemical Compositions	% Min	SiO₂	99.6	99.6	99.6	99.6
	PPM Max	Al₂O₃	800	800	800	800
		Fe₂O₃	100	100	100	100
		CaO+MgO	200	200	200	200
		Na₂O-K₂O	200	200	200	200
	% Max	Moisture	0.01	0.01	0.01	0.01
	% Max	Ignition Loss	0.01	0.01	0.01	0.01
Water extract (1:10) Max		Na+PPM	10	10	10	10
		Cl+PPM	10	10	10	10
		Fe₃+PPM	10	10	10	10
		Conductivity (us/cm)	15	15	15	15
Ph			5.5-7.5	5.5-7.5	5.5-7.5	5.5-7.5
Specific Gravity (g/cm³)			2.65	2.65	2.65	2.65
Mohrs scale			7	7	7	7
Hydrophobic nature (Min)			>45	>45	>45	>45
Median Diameter D50 um			20-25	15-20	10-15	8-10
Specific Area cm²/g			1700-2200	2000-2400	2300-3000	3000-4000