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SIPERNAT® 22 is a hydrophilic, coarse silica combining a high absorptive capacity with a good flowability. It is well suited to transform any type of liquid, including defoamers, into dry, free flowing powder concentrates.

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

Functions: Processing Aid

CAS Number: 112926-00-8

Chemical Family: Silica

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
CAS No.
112926-00-8
EC No.
601-214-2

Features & Benefits

Product Benefits

Easier dosing, handling, incorporation and dispersion of liquid/solid additives.

Applications & Uses

Base Chemicals End Uses
Applications
  • Very well suited for powder defoamer production (carrier silica).
  • SIPERNAT® 22 is used as carrier silica for choline chloride solutions, vitamin E acetate and other liquid active substances.

Typical Applications

  • Plasticizers
  • Blowing agents
  • Antistatic agents
  • Anti-fogging agents

Properties

Physical Form
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Tamped Density (Not Sieved)245g/lISO 787-11
Sulfate Content¹max. 1.5%Internal Method
Specific Surface Area (N₂) Multipoint180m²/gISO 9277
Sodium Content¹max. 1%Internal Method
SiO₂ Content³min. 97%ISO 3262-19
Sieve Residue (in 63 µm Alpine)min. 75%ISO 8130-1
pH Value (in 5% water)6.5ISO 787-9
Particle Size (D50)120µmLaser Diffraction, ISO 13320
Loss on Ignition² (at 1000°C, 2 Hours)max. 6%ISO 3262-1
Loss on Drying (at 105°C, 2 Hours)max. 7%ISO 787-2
Iron Content¹max. 400ppmInternal Method
Electrical Conductivity (in 4% water)max. 1300µS/cmISO 787-14
DOA Absorption¹235ml/100gISO 19246
Note
  • ¹ based on original substance
  • ² based on dry substance (2 h/105°C)
  • ³ based on ignited substance (2 h/1000°C)
  • * The Physico-chemical properties are typical values. Specifications on request.

Regulatory & Compliance

Chemical Inventories

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.