| Product name: |
Tetraethyl Orthosilicate |
| CAS RN: |
78-10-4 |
| SAFETY DATA SHEET: |
| 1、HAZARDS IDENTIFICATION |
| Classification of the substance or mixture |
PHYSICAL HAZARDS |
Flammable liquids Category 3 |
| HEALTH HAZARDS |
Acute toxicity (Inhalation) Category 4
Skin corrosion/irritation Category 2
Serious eye damage/eye irritation Category 2A
Specific target organ toxicity
- Single exposure [Category 1]
Blood system
Specific target organ toxicity
- Single exposure [Category 3]
Respiratory tract irritation, Narcotic effects
Specific target organ toxicity
- Repeated exposure [Category 1]
Respiratory system
Specific target organ toxicity
- Repeated exposure [Category 2]
Kidney
|
| ENVIRONMENTAL HAZARDS |
Not classified |
| Label elements |
Pictograms or hazard symbol |
  
|
| Signal word |
Danger |
| Hazard statements |
Flammable liquid and vapour
Harmful if inhaled
Causes skin irritation
Causes serious eye irritation
Causes damage to organs : Blood system
Causes damage to organs through prolonged or repeated
exposure : Respiratory system
May cause damage to organs through prolonged or
repeated exposure : Kidney
May cause respiratory irritation
May cause drowsiness or dizziness |
Precautionary statements
[Prevention] |
Keep away from heat, sparks, open flames and hot surfaces. -No smoking.
Keep container tightly closed.
Ground and bond container and receiving equipment.
Use explosion-proof electrical, ventilating and lighting equipment. Use only
non-sparking tools. Take precautionary measures against static discharge.
Do not breathe mist, vapors or spray.
Use only outdoors or in a well-ventilated area.
Do not eat, drink or smoke when using this product.
Wash hands and face thoroughly after handling.
Wear protective gloves, eye protection. |
| [Response] |
IF ON SKIN: Wash with plenty of water. If skin irritation occurs: Get medical advice
or attention. Take off contaminated clothing and wash it before reuse.
IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call
a POISON CENTER or doctor if you feel unwell.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact
lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get
medical advice or attention.
If exposed or concerned: Call a POISON CENTER or doctor.
In case of fire: Use dry chemical, dry sand or foam to extinguish. |
| [Storage] |
Store in a well-ventilated place. Keep container tightly closed.
Store locked up. |
| [Disposal] |
Dispose of contents and container in accordance with local, regional, national
regulations. |
| 2、COMPOSITION/INFORMATION ON INGREDIENTS |
Substance/mixture: Substance
Components: Tetraethyl Orthosilicate
Percent: >97.0%(GC)
CAS RN: 78-10-4
Synonyms: TEOS , Tetraethoxysilane
Chemical Formula: C8H20O4Si |
| 3、 PHYSICAL AND CHEMICAL PROPERTIES |
Physical state (20°C): Liquid
Form: Clear
Colour: Colorless - Almost colorless
Odour: Mild Ester-like
Odour threshold: 17 ppm
pH: No data available
Melting point/freezing point: -82°C
Boiling point/range: 165°C
Flash point: 54°C
Flammability or explosive
limits:
Lower: 1.3%
Upper: 23%
Vapour pressure: 200Pa/20°C
Vapour density: 7.22
Relative density: 0.93
Solubility(ies):
[Water] Very slightly soluble
[Other solvents]
Miscible: Alcohols
Soluble: Ether
Slightly soluble: Benzene
Log Pow: 0.04 |
| 4、STABILITY AND REACTIVITY |
Chemical stability: Stable under proper conditions.
Possibility of hazardous
reactions:
No special reactivity has been reported.
Conditions to avoid: Spark, Open flame, Static discharge
Incompatible materials: Oxidizing agents, Acids, Water
Hazardous decomposition products:Carbon dioxide, Carbon monoxide, Silicon oxides |
The company mainly produces silane-based pharmaceutical raw materials and pharmaceutical intermediates 