AEROSIL® R 974 W Silica

AEROSIL® R 974 W is a hydrophobic fumed silica after treated with DDS (Dimethyldichlorosilane) based on a hydrophilic fumed silica with a specific surface area of 200m²/g. The product thickening efficiency of AEROSIL® R 974 W ex RHE is consistent with the Waterford-produced AEROSIL® R 974. This profile is different than the thickening profile of standard RHE quality.

Principal: Evonik Corporation Silicas

Functions: Anti-Settling Agent, Reinforcement Agent, Rheology Modifier, Thickener, Thickener, Thickener, Thickener

Chemical Family: Organosilicon

End Uses: RTV Silicone Sealant, Silicone Sealant, Toner, Varnishes

Compatible Polymers & Resins: Silicone Elastomer, Silicones

Benefit Claims: Anti-Caking

Labeling Claims: Allergen-free, Conflict Minerals-free, Odor-free

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Enhanced TDS

Identification & Functionality

Agrochemical Functions
Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Cosmetic Ingredients Functions
EC Number
271-893-4
Function
Anti-Settling Agent, Reinforcement Agent, Thickener, Rheology Modifier
Plastics & Elastomers Functions
Product Code
MITM16379
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Applications & Uses

Adhesive & Sealant End Applications
Coating End Applications
Compatible Polymers & Resins
Ink & Toner End Applications
Markets
Applications

Properties

Physical Form

Principal Information

Group Principal Number
S000006
Principal

Storage & Handling

Storage Conditions

Our silica products are inert and chemically extremely sta- ble. However, due to their high specific surface area, they can adsorb moisture and volatile organic compounds from the surrounding atmosphere. Products have to be stored in their original packaging (e.g. fully shrink-wrapped) or in sealed containers in a dry place away (or apart) from vola- tile organic substances. Even if a product is stored in these conditions, it can still pick up ambient moisture after a long time, which can cause it to exceed the stated ex works moisture content. For this reason, our recommended use-by date is 24 months after date of manufacture. Prod- uct 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.

Other

Color (SDS)
White
Item Number
Odor (SDS)
Odorless
Other Hazards
Hazard(s) not otherwise classified (HNOC): None
USA/DOT UN Number
Not Applicable
Chemical Properties
ValueUnitsTest Method / Conditions
Assay99.8-100.0 %(W/W)%(W/W)
Loss on Ignitionmax. 2.0 %(W/W)%(W/W)
pH3.7-4.7-in 4% dispersion
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life24.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Moisture Contentmax. 0.5 %(W/W)%(W/W)
Specific Surface Area150.0-190.0 m²/gm²/gBrunauer-Emmett-Teller (BET)
Tapped Bulk Density50.0 g/Lg/L
Material Composition
ValueUnitsTest Method / Conditions
Carbon Content0.7-1.3 %(W/W)%(W/W)
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)600.0 °C°CVDI 2263
Bulk Density (SDS)2.0 g/cm³g/cm³at 20°C
Decomposition Temperature (SDS)300.0 °C°C
Density (SDS)2.0 g/cm³g/cm³at 20°C
Density (SDS)2.0 g/cm³g/cm³
Self Ignition Temperature (SDS)min. 600.0 °C°CVDI 2263
Solubility In Water (SDS)min. 1.0 mg/Lmg/L
pH (SDS)3.7-4.7-at 20°C, 40 g/l, 1:1 in suspension