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NexSil™ 85K-40

1 of 22 products in this brand
NexSil™ 85K-40 colloidal silica is a large-particle product primarily intended as an abrasive for formulated polishing slurries. NexSil™ 85K-40 is based on high-purity colloidal silica and contains very low levels of trace impurities, minimizing the introduction of impurities in the polishing process.

Chemical Family: Silica

Features: Excellent Scratch Resistance

Technical Data Sheet
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Identification & Functionality

Carrier
Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

CASE Ingredients Features

Applications & Uses

Properties

Physical Form
Appearance
Milky White
Typical Properties
ValueUnitsTest Method / Conditions
SiO2 Content39 - 41%
K2O Content0.03 – 0.3%
DLS Particle Size75 - 95nm
Specific Surface Area40 - 70m2/g
pH8.6 – 9.8
Viscositymax. 15cPs
Surface ChargeNegative
Specific Gravity1.284 - 1.303
LPC #/ml 1.0max. 100,000micron
Al at 40% SiO2max. 150ppm@ 40% SiO2
Ca at 40% SiO2max. 10ppm@ 40% SiO2
Cr at 40% SiO2max. 1ppm@ 40% SiO2
Co at 40% SiO2max. 5ppm@ 40% SiO2
Cu at 40% SiO2max. 1ppm@ 40% SiO2
Fe at 40% SiO2max. 25ppm@ 40% SiO2
Pb at 40% SiO2max. 1ppm@ 40% SiO2
Mg at 40% SiO2max. 5ppm@ 40% SiO2
Mn at 40% SiO2max. 5ppm@ 40% SiO2
Na at 40% SiO2max. 150ppm@ 40% SiO2
K at 40% SiO2Majorppm@ 40% SiO2
Ni at 40% SiO2max. 1ppm@ 40% SiO2
Ti at 40% SiO2max. 40ppm@ 40% SiO2
Zr at 40% SiO2max. 40ppm@ 40% SiO2
Zn at 40% SiO2max. 5ppm@ 40% SiO2