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HDK® H20 is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H20 is used as a thickening and thixotropic agent in coatings, printing inks, adhesives, cosmetics, and other applications. It also serves as a reinforcing filler in elastomers, particularly silicone-elastomers. Additionally, HDK® H20 acts as a free flow additive in the production of powder coatings.

INCI Name: Silica, Silica Dimethyl Silylate

Chemical Family: Silica

Functions: Extender, Filler, Reinforcement, Rheology Modifier, Thickener, Thixotrope, Viscosity Modifier

Labeling Claims: Clean at Sephora, Credo Clean Standard, Cruelty-Free, Kosher, Ulta Beauty's Conscious Beauty

Certifications & Compliance: Comprehensive Environmental Response, Compensations & Liability Act (CERCLA), Cruelty-Free, EC No.1907/2006, Kosher, REACH Exempt (Europe)

Synonyms: Fumed Silica, Silica, Silicon Dioxide

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Chemical Name
Cosmetic Ingredients Functions
Plastics & Elastomers Functions
CAS No.
68611-44-9
EC No.
271-893-4

Features & Benefits

CASE Ingredients Features
Specific Features

Hydrophobic

Applications & Uses

Application Format
AP/Deo Applications
Sun Care Applications
Applications
  • Deodorants
  • Do It Yourself
  • Flexographic Printing
  • Gravure Printing
  • Hair Care
  • Make-up
  • Offset Printing
  • Powder Coatings
  • Rheology Control
  • Screen Printing
  • Sealants
  • Skin Care
  • Sunscreen
Application Details

HDK® H20 is applied as a thickening and thixotropic agent in coatings, printing inks, adhesives, cosmetics and others. It is used as a reinforcing filler in elastomers, mainly silicone-elastomers. HDK® H20 acts as a free flow additive in the production of powder coatings. HDK® H20 is not suitable for pharmaceuticals, food and feed. A good dispersion of HDK® H20 is a must to assure optimum performance.

Properties

Color
Physical Form
Appearance
White colloidal powder
Typical Properties
ValueUnitsTest Method / Conditions
BET Surface (of the hydrophobic silica)approx. 170 m²/gDIN ISO 9277 DIN 66132
Density (at 20°C, SiO₂)approx. 2.2 g/cm³DIN 51757
Residual Silanol Content50%
SiO₂ Content (based on the substance heated at 1000°C for 2 hours)min. 99.8%DIN EN ISO 3262-19
Specifications
ValueUnitsTest Method / Conditions
BET Surface (of the hydrophilic silica)170 - 230 m²/gDIN ISO 9277 DIN 66132
Carbon Content1.0 - 1.8 %DIN ISO 10694
Loss on Drying (at 105°C, 2 hours)max. 0.6 %DIN EN ISO 787-2
Sieve Residue (min. 40 µm)max. 0.05 %DIN EN ISO 787-18, Mocker Apparatus
Surface ModificationDimethylsiloxy
Tamped Densityapprox. 40 g/lDIN EN ISO 787-11
Properties

White colloidal powder of high purity.

Regulatory & Compliance

Safety & Health

Safety Notes

During transportation and processing HDK® H20 may cause electrostatic charges. Like other amorphous silicas HDK® H20 does not show either carcinogenic (IARC classification, Volume 68, 1997) or mutagenic properties.

Packaging & Availability

Country Availability
Packaging Type
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • North America
  • Oceania
Packaging Information

HDK® H20 is offered in following packaging:

  • Pallet with paper bags: 10 kg bags
  • Big bags: 160 kg (big bag on pallet)

Storage & Handling

Storage Information

HDK® H20 should be stored in the original packaging in dry storage areas.