AEROSIL® RY 300

AEROSIL® RY 300 is a hydrophobic fumed silica aftertreated with polydimethylsiloxane with excellent thickening properties and negative electrostatic charge.

Principal: Evonik Corporation Silicas

Functions: Defoamer, Defoamer, Flow Promoter, Rheology Modifier, Rheology Modifier

Chemical Family: Silicones

End Uses: Toner

Labeling Claims: Conflict Minerals-free, Odor-free

Features: Excellent Stability, Hydrophobic

Physical Form: Powder

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
Defoamer, Flow Promoter, Rheology Modifier
Plastics & Elastomers Functions
Product Code
MITM09919
Single Ingredient
Yes
Synonyms
Dimethyl Silicone Polymer With Silica
Technologies
Product Families

Features & Benefits

Applications & Uses

Properties

Physical Form
Product Properties
  • Negative electrostatic charge and provides a high charge stability to toners
  • High-efficient free flow aid for toners and dry powders in general
  • Very high PDMS content providing very high hydrophobicity and reduced moisture pick-up
  • Effective rheology control in complex liquid systems
  • Makes material particularly suitable when pronounced gelling power and high transparency required

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000006
Principal

Storage & Handling

Storage Conditions

We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances. AEROSIL® RY 300 should be used within two years after production.

Other

Color (SDS)
White
Dust Explosion Class (SDS)
ST-1
Item Number
Odor (SDS)
Odorless
USA/DOT UN Number
Not Applicable
Chemical Properties
ValueUnitsTest Method / Conditions
pH4.5-5.5-
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life2.0 yryr
Physical Properties
ValueUnitsTest Method / Conditions
Bulk Density50.0 g/Lg/L
Moisture Contentmax. 0.5 %%at 105°C, 2h
Specific Surface Area110.0-140.0 m²/gm²/gBrunauer-Emmett-Teller (BET)
Material Composition
ValueUnitsTest Method / Conditions
Calcium Content6.0-8.5 %%
Silicon Contentmin. 99.8 %%based on ignited material, as silicon dioxide
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Bulk Density (SDS)40.0-55.0 kg/m³kg/m³
Decomposition Temperature (SDS)min. 300.0 °C°C
Density (SDS)2.0 g/cm³g/cm³at 20°C
Ignition Temperature (SDS)460.0 °C°CVDI 2263
Minimum Ignition Energy (SDS)1.0-150.0 JJVDI 2263
pH (SDS)4.5-5.5-at 20°C, 40 g/L