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Quartz Ware

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Quartz Ware

Vitreous Silica is the glassing modification of silcondioxide with a purity of 99.9% in the transparent form and is called fused silica. All our silica ware products are made out of fused silica. Fused silica is completely unaffected by acids such as sulpuric, nitric and hydrochloric, however, it can be af???fected by hdrofluric acid and at high temperatures also by phosphoric acid. Hot alkalies and certain metallic oxides also react on fused silica.

Fused silica is boron free

They are of very low expansion and hence have excel???lent dimensional stability and thermal shock resistance

Technical Specifications:

Electrical resistivity - (at 350°C) 7 x 107 ohm cm

Average co-efficient of expansion - 5.5 x 10-7 / °C

Softening point - 1685° C

Annealing point - 1200° C

Operating temperature (continuous) - 1050° C

Operating temperature (intermittent) - 1350° C

Working temperature - 1950° C

Strain point - 1120° C

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