68611-44-9
Silicon dioxide
CAS: 68611-44-9
Molecular Formula: C2H6Cl2O2Si2
68611-44-9 - Names and Identifiers
68611-44-9 - Physico-chemical Properties
| Molecular Formula | C2H6Cl2O2Si2 |
| Molar Mass | 189.14 |
| Density | 0.18 g/cm 3 (loose weight)(lit.) |
| Solubility | Solubility is 1 in 6.7 parts of water (pH 7, 25°C). Practically insoluble in organic solvents(5) and |
| Storage Condition | Room Temprature |
68611-44-9 - Risk and Safety
| Risk Codes | R48/20 - R36/37 - Irritating to eyes and respiratory system. R49 - May cause cancer by inhalation |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
68611-44-9 - Nature
| EPA chemical information | Silane, dichlorodimethyl-, reaction products with silica (68611-44-9) |
Last Update：2024-04-10 22:29:15
68611-44-9 - Introduction
Silicon dioxide is a kind of nano-material with hydrophobic properties. After its surface is modified, it can form a stable dispersion system in water. Its main properties include the following:
1. Hydrophobicity: Silicon dioxide has high hydrophobic properties and can spontaneously form a micelle structure in water to form a dispersion system. Such characteristics make it useful in some applications for dispersing, wetting, enhancing, etc.
2. High specific surface area: Nano-silica has a large specific surface area, can provide more active surface sites, and has a strong adsorption capacity. It can be used to adsorb organic matter, metal ions, etc., and has a wide range of applications in environmental management, wastewater treatment, drug delivery and other fields.
3. Heat resistance: Silicon dioxide has certain heat resistance and can exist stably under high temperature conditions.
Silicon dioxide is mainly used in the following fields:
1. Functional Materials: can be used as paint, plastic, rubber and other materials filler, improve the performance of the material.
2. Biomedicine: It can be used in drug delivery systems, biosensors, medical materials, etc., with good biocompatibility and biodegradability.
3. Environmental treatment: It can be used for environmental treatment applications such as wastewater treatment, gas adsorption and separation.
There are two main methods for preparing silica dioxide: physical modification and chemical modification. Physical modification usually includes sol-gel method, high temperature melting method, etc., and hydrophobicity is achieved by changing the surface structure and size. Chemical modification mainly includes silane coupling agent method, surface modification method, etc., through chemical reaction with organic or other compounds to change its surface properties.
Note the following safety information when using Silicon dioxide:
1. Silicon dioxide powder has a large specific surface area, so it is necessary to avoid inhaling air. If nano-silica in powder form must be operated, protective measures should be taken, such as wearing a mask.
2. During the preparation and use of nano-silica, care should be taken to avoid long-term contact with skin and eyes, so as not to cause allergic reactions or other discomfort.
1. Hydrophobicity: Silicon dioxide has high hydrophobic properties and can spontaneously form a micelle structure in water to form a dispersion system. Such characteristics make it useful in some applications for dispersing, wetting, enhancing, etc.
2. High specific surface area: Nano-silica has a large specific surface area, can provide more active surface sites, and has a strong adsorption capacity. It can be used to adsorb organic matter, metal ions, etc., and has a wide range of applications in environmental management, wastewater treatment, drug delivery and other fields.
3. Heat resistance: Silicon dioxide has certain heat resistance and can exist stably under high temperature conditions.
Silicon dioxide is mainly used in the following fields:
1. Functional Materials: can be used as paint, plastic, rubber and other materials filler, improve the performance of the material.
2. Biomedicine: It can be used in drug delivery systems, biosensors, medical materials, etc., with good biocompatibility and biodegradability.
3. Environmental treatment: It can be used for environmental treatment applications such as wastewater treatment, gas adsorption and separation.
There are two main methods for preparing silica dioxide: physical modification and chemical modification. Physical modification usually includes sol-gel method, high temperature melting method, etc., and hydrophobicity is achieved by changing the surface structure and size. Chemical modification mainly includes silane coupling agent method, surface modification method, etc., through chemical reaction with organic or other compounds to change its surface properties.
Note the following safety information when using Silicon dioxide:
1. Silicon dioxide powder has a large specific surface area, so it is necessary to avoid inhaling air. If nano-silica in powder form must be operated, protective measures should be taken, such as wearing a mask.
2. During the preparation and use of nano-silica, care should be taken to avoid long-term contact with skin and eyes, so as not to cause allergic reactions or other discomfort.
Last Update：2024-04-10 22:41:03
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Product Name: Silane, dichlorodimethyl-, reaction products with silica Visit Supplier Webpage Request for quotation
CAS: 68611-44-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 68611-44-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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