Structural formula
Business number | 01N8 |
---|---|
Molecular formula | C6H16O2Si |
Molecular weight | 148.28 |
label |
Dimethyldiethoxysilane, Diethoxydimethylsilane, diethoxy(dimethyl)silane, Dimethyl-diethoxysilan, Dimethylsilicondiethoxide, KBE 22, (CH3)2Si(OC2H5)2 |
Numbering system
CAS number:78-62-6
MDL number:MFCD00009068
EINECS number:201-127-6
RTECS number:VV3590000
BRN number:1736110
PubChem number:24850513
Physical property data
1. Properties: colorless transparent liquid [1]
2. Melting point (℃): -87[2]
3. Boiling point (℃): 114[3]
4. Relative density (water=1): 0.865 [4]
5. Relative vapor density (air=1): 5.1[5]
6. Saturated vapor pressure (kPa ): 1.33 (13.3℃)[6]
7. Octanol/water partition coefficient: 0.61[7]
8. Flash point (℃): 11.67[8]
9. Solubility: miscible in most organic solvents. [9]
Toxicological data
1. Skin/eye irritation:
Standard Draize test: rabbit, skin contact: 500mg/24H; severity of reaction: mild.
Standard Draize test: Rabbit, eye contact: 83 mg; Severity of reaction: Mild.
Standard Draize test: Rabbit, eye contact: 500mg/24H; severity of reaction: mild.
2. Acute toxicity: Rat oral LD50: 9280mg/kg; Rat inhalation LC50: 20mg/m3/8H;
3 , Other multiple dose toxicity: rats inhaled TCLo: 4000ppm/7H/10D-I.
4. Acute toxicity[10] LD50: 9280mg/kg (rat oral)
5. Irritation[11]
Rabbit transdermal: 500mg (24h), mild Stimulate.
Rabbit eye: 500mg (24h), mild irritation.
Ecological data
1. Ecotoxicity No data available
2. Biodegradability No data available
3 .Non-biodegradability No information available
Molecular structure data
1. Molar refractive index: 42.05
2. Molar volume (cm3/mol): 176.0
3. Isotonic specific volume (90.2K ): 369.3
4. Surface tension (dyne/cm): 19.3
5. Polarizability (10-24cm3): 16.67
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 2
4. Number of rotatable chemical bonds: 4
5. MutualNumber of isomers: None
6. Topological molecule polar surface area 18.5
7. Number of heavy atoms: 9
8. Surface charge: 0
9. Complexity: 65.5
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. The number of uncertain stereocenters of atoms: 0
13. The number of determined stereocenters of chemical bonds: 0
14. The number of uncertain stereocenters of chemical bonds: 0
15. Number of covalent bond units: 1
Properties and stability
1. Stability[12] Stable
2. Incompatible substances[13] Strong oxidants, strong acids, water vapor
3. Conditions to avoid contact[14] Heated, humid air
4. Polymerization hazard[15] No polymerization
5. Decomposition products[16] Silicon oxide
Storage method
Storage Precautions[17] Store in a cool, dry and well-ventilated warehouse. Keep away from fire and heat sources. The storage temperature should not exceed 37°C. The packaging must be sealed and protected from moisture. They should be stored separately from oxidants, acids, etc., and avoid mixed storage. It should not be stored in large quantities or for long periods of time. Use explosion-proof lighting and ventilation facilities. It is prohibited to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with emergency release equipment and suitable containment materials.
Synthesis method
None yet
Purpose
1. Used as chemical reagents and raw materials for the synthesis of polymeric organosilicon compounds. [18]