LUDOX(R) AM-30 COLLOIDAL SILICA
White carbon black
CAS: 10279-57-9
Molecular Formula: H2O3Si
LUDOX(R) AM-30 COLLOIDAL SILICA - Names and Identifiers
LUDOX(R) AM-30 COLLOIDAL SILICA - Physico-chemical Properties
| Molecular Formula | H2O3Si |
| Molar Mass | 78.1 |
| Density | 2.6g/mLat 25°C(lit.) |
| Melting Point | 1610°C(lit.) |
| Boling Point | >100°C(lit.) |
| Water Solubility | Insoluble in water. |
| Appearance | tablets (~0.5 g each) |
| Exposure Limit | NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3 |
| Storage Condition | no restrictions. |
| Refractive Index | n20/D 1.544(lit.) |
| Physical and Chemical Properties | melting point 1610°C(lit.)
|
| Use | Used as paint filler, rubber reinforcing agent, plastic tackifier and thixotropic agent, thickening agent of synthetic grease silicone grease |
LUDOX(R) AM-30 COLLOIDAL SILICA - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Safety Description | 22 - Do not breathe dust. |
| WGK Germany | 3 |
| RTECS | VV7340000 |
| FLUKA BRAND F CODES | 3 |
| HS Code | 2811 22 00 |
| Toxicity | LD50 orally in Rabbit: > 10000 mg/kg LD50 dermal Rabbit > 5000 mg/kg |
LUDOX(R) AM-30 COLLOIDAL SILICA - Nature
Open Data Verified Data
The precipitated silica is a white amorphous fine powder composed of secondary particles in which primary particles are aggregated into branched chains. The primary particles are generally between 10 and 15 nm, and the precipitated silica aggregated therefrom has a large internal surface area. The silicon atoms in the surface layer form surface hydroxyl groups due to unsaturated valence bonds, and the types of the silicon atoms include dihydroxyl groups, adjacent hydroxyl groups, and Isolation hydroxyl groups. Light weight, relative density of 2.32~2. 65. Melting point 1750 °c. Soluble in caustic and hydrofluoric acid, insoluble in other acids, water and various solvents. High temperature resistance, non-flammable, water absorption, good electrical insulation. It shows chemical inertness to The Matrix and active components and additives. Good compatibility with vitamins, hormones, fluorides, antibiotics, enzymes and many active ingredients commonly used in cosmetics. Due to the porosity and large specific surface area, there is a large dispersion force in the raw rubber. Filling in rubber shows high reinforcement.
Last Update：2024-01-02 23:10:35
LUDOX(R) AM-30 COLLOIDAL SILICA - Preparation Method
Open Data Verified Data
sulfuric acid two-stage (three-stage) acid method is a more general production process of precipitated silica.
Last Update：2022-01-01 11:03:25
LUDOX(R) AM-30 COLLOIDAL SILICA - Use
Open Data Verified Data
used as a reinforcing agent for natural rubber and synthetic rubber. The reinforcing effect of rubber mainly depends on the strength of the actual joint and force between the filler and the rubber and the effective area of the filler. The hydroxyl group on the surface of the precipitated silica has affinity with the rubber, which makes the rubber molecule form a certain bond with the surface of the filler particle, and therefore has a good reinforcing property. Mainly used in color rain shoes, sports shoes, travel shoes, transparent rubber soles and other rubber shoes manufacturing, rubber tire manufacturing and off-Valley rubber roller. In addition, fillers for synthetic resins, thickeners for Inks, pharmaceuticals and cosmetics, Matting agents for toothpaste thickeners, main aids for weight reduction of newsprint, and the like can be used.
Last Update：2022-01-01 11:03:24
LUDOX(R) AM-30 COLLOIDAL SILICA - Safety
Open Data Verified Data
no risk. Lined with polyethylene plastic bag, double-layer brown paper bag or plastic woven bag for packaging. The net weight of each bag is 15kg, 20kg and 25kg. Store in a ventilated, dry place to avoid moisture and contamination.
Last Update：2022-01-01 11:03:25
LUDOX(R) AM-30 COLLOIDAL SILICA - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | used as paint filler, rubber reinforcing agent, plastic tackifier and thixotropic agent, thickener for synthetic grease silicone grease |
Last Update：2024-04-09 21:04:16
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