Micronised Fused Silica

Fused silica is an amorphous siliceous glass produced by high temperature fusion of high quality crystalline silica (quartz). This fusion produces a substance characterised by very low thermal expansion and a high resistance to temperature and thermal shock.

Dupré Minerals 15µm Fused Silica has been manufactured from specially selected source materials to ensure a highly pure product with a low coefficient of thermal expansion and high moisture resistance. It is ideal for the highly demanding manufacture of epoxy fillers, integrated circuits, refractories and investment castings.

Chemical Composition

SiO2 (%)	> 99.8
Al2O3 (ppm)	< 1000
Fe2O3 (ppm)	< 50
Na2O (ppm)	< 50
K2O (ppm)	< 50

Downloads

	Micronised Fused Silica Data Sheet (121 KB)
	Micronised Fused Silica Material Safety Data Sheet (34 KB)

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Water Soluble Ion Content

Na+ (ppm)	< 2
Cl- (ppm)	< 2
Fe2+ (ppm)	< 5

Other Properties

Moisture (%)	< 0.08
Loss on Ignition (%)	< 0.08
pH	6 - 8
Specific Gravity (g/cm3	2.2

Particle Size Analysis (Malvern Mastersizer 2000)

Property	Minimum	Maximum	Typical Result
d(0.1)			4.2µm
d(0.5)	13µm	17µm	15.6µm
d(0.9)			38.2µm
> 75µm		0.5%	0.17%
< 35µm	85%		87.02%
< 3µm	1.0%		5.13%

The above product information is given in good faith as accurate and reliable but is not to be taken as a guarantee. The figures provided are intended to be a guide to expected average values and should not be interpreted as a specification. Any potential applications referred to are not to be construed as recommendations. It is the responsibility of the user to determine suitability for any specific purpose.