Dimethoxymethylphenylsilane CAS 3027-21-2
Molecular formula: C9H14O2Si
Molecular weight: 182.29200
Precise quality: 182.07600
Appearance and character: colorless or light yellow transparent liquid.
Density: 1.005 g/mL at 20 degree C (lit.)
Boiling point: 199 degrees C (lit.)
Flash point: 80 degree C
Refractive index: n20/D 1.479 
Security information editing
Danger category code: R36/37/38
Safety instructions: S26-S36
Dangerous goods logo: Xi 
Molecular structure data
1, molar refractive index: 52.87
2, molar volume (m3/mol): 187.6
3, isotonic specific volume (90.2K): 424.5
4. Surface tension (dyne/cm): 26.1
Computational chemistry data
1. the number of hydrogen bond donors: 0
2. the number of hydrogen bond receptors: 2
3. the number of rotatable chemical bonds: 3
4. topological molecule polar surface area 18.5
The number of 5. heavy atoms: 12
6. surface charge: 0
7. complexity: 129
8. the number of isotopic atoms: 0
9. determine the number of atomic stereoscopic centers: 0
10. uncertainty in the number of atomic stereoscopic centers: 0
11. determine the number of chemical bond centers: 0
12. the number of uncertain chemical bond centers: 0
13. the number of covalent units: 1
Sealed in a cool and dry environment.
First aid measures
Inhalation: if inhaled, please move the patient to fresh air.
Skin contact: remove contaminated clothing and rinse skin thoroughly with soapy water and clear water. If you feel unwell, seek medical advice.
Eye contact: separate eyelids and rinse with flowing or normal saline. Seek medical advice immediately.
Food: gargle, no vomiting. Seek medical advice immediately.
Advice to protect rescuers:
Transfer patients to safe places. Consult a doctor. Show the safety instructions for the chemicals to the doctors at the scene.
Fire protection measures
Fire extinguishing agent:
Use water mist, dry powder, foam or carbon dioxide extinguishing agent to extinguish fire.
Avoid using direct current water to extinguish fire. DC water may cause flammable liquid splash and spread fire.
Precautions and protective measures for fire extinguishing:
Firefighters must wear breathing apparatus and wear a full body fire suit to extinguish the wind.
Remove the container from the fire to the open as far as possible.
Containers in the fire field must be evacuated immediately if they are discolourable or sound from the safety relief device.
Isolation of accident sites is prohibited. Accept and deal with fire water and prevent pollution.
Disclosure of emergency processing editors
Operational personnel protective measures, protective equipment and emergency response procedures:
It is suggested that emergency personnel should wear breathing apparatus, wear antistatic clothing and wear rubber gloves.
No contact or leaking across leaks.
All equipment used during operation should be grounded.
Cut off the leakage source as far as possible.
Eliminate all sources of ignition.
Warning zones are defined according to the areas affected by liquid flow, vapor or dust diffusion, and unrelated personnel are evacuated from the crosswind and upwind directions to safety zones.
Environmental protection measures:
Take out leaks and avoid polluting the environment. Prevent leakage into sewers, surface water and ground water.
The methods of storage and removal of leaked chemicals and the materials used:
Small leakage: collect leaking liquid as far as possible in a closed container. It is absorbed by sand, activated carbon or other inert materials and transferred to a safe place. No rush into the sewer.
A large number of leaks: build a dike or dig a hole for shelter. Close drainage pipes. Foam is used to cover evaporation. The explosion-proof pump is transferred to the tank car or special collector, and is recovered or transported to the waste disposal place for disposal.
Operation, disposal and storage
Operators should undergo special training and strictly observe the operation procedures.
Operation and disposal should be carried out in places with partial ventilation or comprehensive ventilation and ventilation facilities.
Avoid contact with eyes and skin and avoid inhaling steam.
Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace.
Use explosion-proof ventilation system and equipment.
If you want to canned, you should control the flow rate, and there is grounding device to prevent static accumulation.
Avoid contact with oxidant and other prohibited substances.
Light handling and unloading should be carried out to prevent packing and container damage.
Empty containers may contain harmful substances.
Wash hands after use and prohibit eating in the workplace.
Equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency handling equipment.
Store in cool, ventilated storeroom.
It should be kept separately from oxidants and food chemicals.
Keep the container sealed.
Keep away from fire and heat sources.
Storehouses must install lightning arresters.
The air exhaust system should be equipped with a grounding device to eliminate static electricity.
Use explosion-proof lighting and ventilation settings.
It is forbidden to use equipment and tools that are easy to generate sparks.
Emergency handling equipment and suitable storage materials should be provided in the storage area.