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SIPERNAT® 45 S is a carrier silica with high absorbency that finds typical applications in rubber and plastic additives, plant protection formulations, and feed additives. Its benefits include improved flow properties in fine particle applications, faster production rates, and increased capacity.

Ingredient Name: Silicon Dioxide

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

Functions: Anti-Caking Agent, Anti-Caking Agent, Carrier, Defoamer, Dough Conditioner, Filtration Aid, Flour Treating Agent, Flow Promoter, Shelf Life Enhancer

Chemical Family: Silica

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Ingredient Name
Ingredient Origin
Agrochemical Functions
Animal Feed & Nutrition Functions
Base Chemicals Functions

Features & Benefits

Agrochemicals Features
Animal Feed & Nutrition Features
Key Benefits
  • Improved flow properties in fine particle applications
  • Offers faster production rates and increased capacity
  • Reduced production downtime and maintenance
  • Improved product quality and consistency
  • Improved package weight accuracy
Product Highlights

SIPERNAT® 45 S enhances flowability and prolongs the shelf life of powdered substances which are liable to caking, especially those with a high fat content. It also acts as a high absorbency carrier in case particle fineness is needed in addition to high concentration.

Applications & Uses

Base Chemicals End Uses


Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Sulfate Content¹max. 1.5%Internal method
Iron Content¹max. 400ppmInternal method
Sodium Content¹max. 1%Internal method
SiO₂ Content (at 1000°C, 2 hrs)min. 97%ISO 3262-19
Loss on Ignition (at 105°C, 2 hrs) ²max. 6.5%ISO 3262-1
Tamped Density (Not Sieved)90g/lISO 787-11
Electrical Conductivity (54% in water)max. 1300µS/cmISO 787-14
pH (5% in water)7.5-ISO 787-9
Loss on Drying (at 105°C, 2hrs)max. 7%ISO 787-2
Particle Size (D50)18μmISO 13320, Laser diffraction
Specific Surface Area (N₂, Multipoint)260m²/gISO 9277
DOA Absorption¹275ml/100gISO 19426
Heavy Metals
ValueUnitsTest Method / Conditions
Selenium Contentmax. 0.4ppm-
Nickel Contentmax. 3ppm-
Copper Contentmax. 6ppm-
Zinc Contentmax. 10ppm-
Barium Contentmax. 50ppm-
Arsenic Contentmax. 3ppm-
Antimony Contentmax. 5ppm-
Mercury Contentmax. 1ppm-
Total Chromium Contentmax. 10ppm-
Cadmium Contentmax. 1ppm-
Lead Contentmax. 5ppm-
  • 1 based on the original substance
  • ² based on dry substance (2 h/105°C)
  • 3 based on ignited substance (2 h/1000°C)

Regulatory & Compliance

Packaging & Availability

Regional Availability
  • Latin America
  • North America

Storage & Handling

Storage Information

Silica products are inert and extremely chemically stable. 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 packages in a cool, dry location and removed from volatile substances. Even if the product is stored under these conditions, after a longer period ambient moisture can accumulate, which could lead to the product exceeding its specified moisture content.