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SIPERNAT® D 13

1 of 21 products in this brand
SIPERNAT® D 13 is a milled, hydrophobic (i.e., not wettable by water) silica, high methanol wettability and low surface. It is used in a great variety of technical defoamers due to its high effectiveness and ease of dispersion.

Chemical Name: Hydrated Silica, Silica gel, pptd., cryst.-free

Functions: Processing Aid

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
CAS No.
67762-90-7

Features & Benefits

Applications & Uses

Base Chemicals End Uses
Applications
  • Very well suited for Hydrophobic silica.
  • SIPERNAT® D 13 is used in a great variety of defoamer due to its high effectiveness and ease of dispersion.

Properties

Physical Form
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Tamped Density (Not Sieved)120g/lISO 787-11
SiO₂ Content²min. 97%ISO 3262-19
pH Value (in 5% water / methanol 1:1)10ISO 787-9
Particle Size (D50)10.5µmLaser Diffraction, ISO 13320
Methanol Wettabilitymin. 58%Internal Method
Loss on Ignition¹ (at 1000°C, 2 Hours)max. 9.5%ISO 3262-1
Loss on Drying (at 105°C, 2 Hours)max. 4%ISO 787-2
Carbon Content3.3%Element Analyser LECO, ISO 3262-19
Note
  • ¹ based on dry substance (2 h/105°C)
  • ² based on ignited substance (2 h/1000°C)
  • * The Physico-chemical properties are typical values. Specifications on request.

Regulatory & Compliance

Certifications & Compliance

Storage & Handling

Shelf Life
24 months
Storage Conditions

Our silica products are inert and extremely stable chemically. However, due to their high specific surface area, they can absorb moisture and volatile organic compounds from the surrounding atmosphere. Therefore, we recommend storing the products in sealed containers in a dry, cool place, and removed from volatile organic substances. Even if a product is stored under these conditions, after a longer period it can still pick up ambient moisture over time, which could lead to its exceeding the specified moisture content. For this reason, our recommended use-by date is 24 months after date of manufacture. Product more than 24 months old should be tested for moisture content before use in order to make certain that it is still suitable for the intended application.