Sodium tert-butoxide
- CAS Number
- 865-48-5
- HSN Code
- 29051990
- Molecular Formula
- C4H9NaO
- Catalogue Number
- AL1362A
- Purity
- ≥ 98%
- Molecular Weight
- 96.11 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium tert-butoxide (extra pure, sodium tert-butylate) is a strong, hindered, non-nucleophilic base widely used in organic synthesis. It is particularly valued for its ability to deprotonate weak acids and facilitate various organic reactions without participating in nucleophilic attack. This compound is characterized by its high purity of 98%, making it suitable for sensitive applications in research and industrial settings. Its unique properties allow it to serve as an effective catalyst in elimination and condensation reactions, contributing to the synthesis of complex organic molecules.
Also known as Sodium tert-butylate.
- Catalogue No.
- AL1362A
- CAS Number
- 865-48-5
- Molecular Formula
- C4H9NaO
- Molecular Weight
- 96.11 g/mol
- HSN Code
- 29051990
- Grade
- 98% Extra Pure
- Product Form
- Substance
Sodium tert-butoxide appears as a white to off-white crystalline powder that is highly moisture-sensitive. It has a melting point of approximately 60 °C and a boiling point of around 150 °C. The compound is soluble in polar aprotic solvents such as dimethyl sulfoxide (DMSO) and tetrahydrofuran (THF), but it is insoluble in water. Its density is about 1.1 g/cm³, and it has a strong alkaline pH when dissolved in suitable solvents. The compound is known to be hygroscopic, absorbing moisture from the air, which necessitates careful storage under inert conditions.
- Appearance
- White to off-white crystalline powder
- Shelf Life
- -
- Packaging
- -
- Storage
- Store dry under inert atmosphere, away from moisture.
1.1 — Product identifier
- Chemical Name
- Sodium tert-butoxide
- Catalogue No.
- AL1362A
- Product form
- Substance
- CAS Number
- 865-48-5
- EC Number
- Not specified
- Grade
- 98% Extra Pure
- EC Index Number
- Not specified
- Chemical Formula
- C4H9NaO
- HSN Code
- 29051990
- Synonyms
- Sodium tert-butylate
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Strong base in organic synthesis
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.3 — Other hazards
- Other hazards
- Corrosive, can be pyrophoric/spontaneously combustible
3.1 — Substance
- Name
- Sodium tert-butoxide
- CAS No.
- 865-48-5
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- Wash skin thoroughly with soap and water. Seek medical attention if irritation develops.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Irritation of eyes, skin, and respiratory tract; potential burns on contact.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- May ignite spontaneously in air; use appropriate fire extinguishing media.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Evacuate area and ventilate. Avoid contact with moisture.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use dry sand or earth to absorb spills. Dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle under inert atmosphere. Use appropriate personal protective equipment (PPE).
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Store in a cool, dry place under inert gas.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if ventilation is inadequate.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to off-white
- Odour
- Odourless
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not specified
- Melting point
- 60 °C
- Freezing point
- Not specified
- Boiling point
- 150 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not specified
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Flammable solid
- Vapour pressure
- Not specified
- Relative vapour density at 20°C
- Not specified
- Density
- 1.1 g/cm³
- Solubility
- Soluble in polar aprotic solvents; insoluble in water
- Log Pow
- Not specified
- Viscosity, kinematic
- Not specified
- Viscosity, dynamic
- Not specified
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not specified
10.1 — Reactivity
- Reactivity
- Reacts violently with water and moisture, releasing tert-butanol and sodium hydroxide.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Water, acids, oxidizing agents, and moisture.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Not classified as acutely toxic; however, may cause irritation.
- Skin corrosion/irritation
- Causes skin irritation; may cause burns.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- Not classified as a sensitizer.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- Not classified as a specific target organ toxicant.
- Specific target organ toxicity (repeated exposure)
- Not classified
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- UN 3206
- UN-No. (IMDG)
- UN 3206
- UN-No. (IATA)
- UN 3206
- UN-No. (ADN)
- UN 3206
- UN-No. (RID)
- UN 3206
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium tert-butoxide
- Proper Shipping Name (IMDG)
- Sodium tert-butoxide
- Proper Shipping Name (IATA)
- Sodium tert-butoxide
- Proper Shipping Name (ADN)
- Sodium tert-butoxide
- Proper Shipping Name (RID)
- Sodium tert-butoxide
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 4.2
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Sodium tert-butoxide is extensively used in organic synthesis as a strong, hindered base catalyst. It plays a crucial role in elimination reactions, such as the formation of alkenes from alcohols, and in condensation reactions, including the synthesis of ethers and esters. This compound is particularly useful in the pharmaceutical industry for the synthesis of active pharmaceutical ingredients (APIs) and in the production of fine chemicals. Additionally, it is employed in polymer chemistry for the preparation of various polymeric materials and in research laboratories for developing new synthetic methodologies.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1362A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 96.11 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | White deliquescent crystalline powder | White deliquescent crystalline powder |
| Assay (T) | Min 98.0% | 98.52% |
The above product complies with EP grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% Extra Pure | ≥ 98% | 60 °C (melting) | ≤ 0.5% | ≤ 0.1% | None detected | Soluble in DMSO and THF |
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