Product Data Sheet

Levasil FO1440
Colloidal silica

Levasil® FO1440 is an alkaline, aqueous dispersion ofcolloidal silica that is approximately 40% solids byweight. The silica dispersion is sodium stabilized and theamorphous silica particles carry a negative surface
charge. The silica particles are discrete, have a slightly
uneven, spherical shape, and are present in a narrow
particle size distribution. The physical appearance ofthe dispersion is a translucent liquid, slightly moreviscous than water. Levasil® FO1440 is produced forworld-wide distribution.

CAS number7631-86-9Specification
Density at 20°C

1.288 - 1.307 g/cm³

SiO₂

38.6 - 40.6 wt%

Na₂O

0.35 - 0.60 wt%

pH at 20°C

9.9 - 10.9

Viscosity at 20°C

≤30.0 cP

Characteristics
Specific Surface Area, Sears

250 m²/g

Appearance/Color

Free of gelatinous and foreign matter. / No exceptional
color variation.

Notes:
Nouryon’s warranty and liability for non-conforming goods / products is limited solely to the elements set out in this specific section above, under theheading “Specification”. This warranty is the sole warranty given by Nouryon. The other information included in this Product Data Sheet is not covered by
Nouryon’s warranty, and Nouryon will have no further obligation or liability with respect thereto.

Applications
Levasil® FO1440 is an excellent binder with very high binding power for a broad variety of inorganic materials asrefractories.

Storage
Levasil® FO1440 should be transported and stored at a temperature of 5-35°C (40-95ºF). If the silica dispersion is allowed
to freeze, the silica will irreversably precipitate. For bulk storage, the tank should be sealed and constructed of plastic,
fiberglass reinforced plastic, or stainless steel. For packaged goods, any translucent packages should be stored out of
direct sunlight or bright light. Under recommended conditions, Levasil® FO1440 has a shelf life of twelve months afterproduction.

Packaging and transport
Levasil® FO1440 is available in bulk, 1000 liters IBC and 220 liters plastic drum.

Safety and handling
Before handling this material, review the corresponding Material Safety Data Sheet. Colloidal silica products are aqueous
dispersions of amorphous silica. Colloidal silica is not classified as harmful, but as mildly irritating. Because the products
can have a drying effect on the skin, protective gloves should always be used. In case of skin contact, wash the area ofcontact with plenty of water. The use of safety glasses is always recommended. In case of eye contact, rinse with large
amounts of water and seek professional medical advice.

Certifications
ISO 9001 and 14001 certified.

All information concerning this product and/or suggestions for handling and use contained herein are offered in good faith and are believed to be reliable.
Nouryon, however, makes no warranty as to accuracy and/or sufficiency of such information and/or suggestions, as to the product's merchantability orfitness for any particular purpose, or that any suggested use will not infringe any patent. Nouryon does not accept any liability whatsoever arising out of theuse of or reliance on this information, or out of the use or the performance of the product. Nothing contained herein shall be construed as granting orextending any license under any patent. Customer must determine for himself, by preliminary tests or otherwise, the suitability of this product for his purposes.
The information contained herein supersedes all previously issued information on the subject matter covered. The customer may forward, distribute, and/orphotocopy this document only if unaltered and complete, including all of its headers and footers, and should refrain from any unauthorized use. Don’t copy
this document to a website.

Levasil® is a registered trademark of Nouryon Chemicals B.V. or affiliates in one or more territories

Contact UsEurope, Middle East and Africa
Gothenburg and Cologne
colloidal.silica@nouryon.com
South America
Jundiaícolloidal.silica@nouryon.com

North AmericaHouston
colloidal.silica@nouryon.com
China
Shanghailevasil.china@nouryon.com
North, South East Asia and Oceania
Taichung, Tokyo, Seoul and Singapore
colloidal.silica@nouryon.com
India
Mumbaicolloidal.silica@nouryon.com

2023-1-30© 2023

Levasil FO1440