Sodium tert-butoxide (CAS No. 865-48-5) msds detailed information are provided by Hangzhou Chemfar Ltd., which has more than 20 years' experience focused on providing integrated development and manufacturing service to the pharmaceutical and fine chemical industry.

1. Product and Company Identification

Product Name: Sodium tert-butoxide
Synonyms: Sodium 2-methylpropan-2-olate; NatB

2. Hazards Identification

Emergency Overview:
Highly flammable. Reacts violently with water. Causes severe burns.Moisture sensitive.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye: Causes eye burns.
Skin: Causes skin burns.
Ingestion: Causes gastrointestinal tract burns.
Inhalation: Causes chemical burns to the respiratory tract. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
Chronic: May cause burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.

3. Composition/Information on Ingredients

Chemical Name: Sodium tert. butoxide
Molecular Formula: C4H9NaO
Molecular Weight: 96.1
 Content: 97%
CAS Number: 865-48-5
EINECS NO. [EC No]: 212-741-9

4. First Aid Measures

Eye: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed.
Skin: Get medical aid immediately. If water-reactive products are embedded in the skin, no water should be applied. The embedded products should be covered with a light oil.
Ingestion: Do NOT induce vomiting and seek IMMEDIATE MEDICAL ADVICE. Give milk of magnesia.
Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.

5. Fire Fighting Measures

General Information:
Extinguishing:
As in any fire, wear a self-contained breathing apparatus in pressure-demand,
MSHA/NIOSH (approved or equivalent), and full protective gear. Water Reactive.
Material will react with water and may release a flammable and/or toxic gas. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Flammable solid.
Do NOT use halogenated agents. Do NOT use water, carbon dioxide, or foam. Use dry sand, dry chemical, soda ash or lime.

6. Accidental Release Measures

General Information:
Spills/Leaks:
Use proper personal protective equipment as listed in Section 8.
Do not flush into a sewer. Avoid generating dusty conditions. Remove all sources of ignition. Isolate area and deny entry. Provide ventilation. With a clean shovel, carefully pick up the material and place it into a clean dry container and cover for disposal.

7. Exposure Controls/Personal Protection

Engineering Controls:
Personal Protective Equipment
Eyes:
Skin:
Clothing:
Repirators:
Facilities storing or utilizing this material should be equipped with an eyewash and a safety shower facility.
Wear chemical safety goggles.
Wear appropriate protective gloves.
Wear appropriate protective clothing.
Wear NIOSH/MSHA - approved respirator

8. Physical and Chemical Properties

Physical State: Crystalline powder
Color:
Odor:

9. Stability and Reactivity

Chemical Stability: 
Stable
Incompatible materials, exposure to moist air or water.
Conditions to Avoid:
Incompatibilities with Other:
Hazardous Decomposition
Water, oxidizing agents, reducing agents, acids, alcohols, carbon dioxide, chlorinated solvents, halogenated agents, halogens, oxygen, ketones.
Carbon monoxide, carbon dioxide, oxides of potassium, potassium fume.

10. Toxicological Information

RTECS#:
Toxicity Data[LD50/LC50]:
Carcinogenicity:
Other:

11. Ecological Information

Ecotoxicity:
Other:
13. Disposal Considerations
Disposal considerations:

12. Transport Information

Shipping Name:
Hazard Class:
UN Number:
Packing Group:

13. Regulatory Information

European/International
Regulations:
CORROSIVE SOLID, WATER-REACTIVE, N.O.S.
8 (4.3)
3096
I
European Labeling in Accordance with EC Directives
Hazard Symbols:
1.C
2.F+
R-Phrases:
1.Highly flammable.
2.Reacts violently with water.
3.Causes severe burns.
S-Phrases:
1.Keep away from sources of ignition - No smoking.
2.In case of contact with eyes, rinse immediately with plenty of water and seek medical
advice.
3.Wear suitable protective clothing.
4.Wear suitable gloves.
5.Wear eye/face protection.
6.In case of accident or if you feel unwell, seek medical advice immediately (show the
lable where possible).
7.Keep container dry.