Tetra Butyl Ammonium Hydroxide
- CAS Number
- 2052-49-5
- HSN Code
- 38229090
- Molecular Formula
- C16H37NO
- Catalogue Number
- AL1497F
- Purity
- 40%
- Molecular Weight
- 259.50 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Tetra Butyl Ammonium Hydroxide 40% aqueous solution is a highly concentrated solution used primarily in organic synthesis applications. This compound is a quaternary ammonium hydroxide, notable for its strong basicity and ability to act as a phase-transfer catalyst. The solution is particularly useful in facilitating reactions that involve the transfer of reactants between immiscible phases, enhancing reaction rates and yields. Its high purity and concentration make it suitable for demanding laboratory environments where precision and effectiveness are critical.
Also known as TBAH, Tetrabutylammonium hydroxide.
- Catalogue No.
- AL1497F
- CAS Number
- 2052-49-5
- Molecular Formula
- C16H37NO
- Molecular Weight
- 259.50 g/mol
- HSN Code
- 38229090
- Grade
- 40% aqueous solution
- Product Form
- Mixture
The product appears as a clear, colorless to pale yellow liquid with a density of 0.995 g/mL. It has a boiling point of approximately 100 °C (at 1 atm) and is miscible with water, making it easy to incorporate into various aqueous reaction systems. The solution has a pH value greater than 13, indicating its strong basic nature. It is important to note that the solution is hygroscopic, absorbing moisture from the air, which can affect its concentration over time.
- Appearance
- Clear, colorless to pale yellow liquid
- Shelf Life
- 12 months
- Packaging
- Available in 1L and 5L HDPE bottles
- Storage
- Store in a cool, dry place away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Tetra Butyl Ammonium Hydroxide
- Catalogue No.
- AL1497F
- Product form
- Mixture
- CAS Number
- 2052-49-5
- EC Number
- 218-200-0
- Grade
- 40% aqueous solution
- EC Index Number
- N/A
- Chemical Formula
- C16H37NO
- HSN Code
- 38229090
- Synonyms
- TBAH, Tetrabutylammonium hydroxide
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Strong base, phase-transfer catalyst
- 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 to metals; may cause severe skin burns and eye damage.
3.1 — Substance
- Name
- Tetra Butyl Ammonium Hydroxide
- CAS No.
- 2052-49-5
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
- Remove contaminated clothing and rinse skin with plenty of water for at least 15 minutes. Seek medical attention if irritation persists.
- 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 immediately.
- 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
- Burning sensation, redness, and severe irritation of skin and eyes; respiratory distress if inhaled.
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
- Non-flammable, but may emit toxic fumes in a fire.
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
- Contain spill and absorb with inert material. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Wear appropriate PPE. Neutralize with dilute acid before disposal.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Use with adequate ventilation. Avoid contact with skin and eyes. Wear appropriate PPE including gloves and goggles.
- 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 tightly closed containers in a cool, dry place, away from acids and oxidizing agents.
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
- Liquid
- Colour
- Clear, colorless to pale yellow
- Odour
- Ammoniacal
- Odour threshold
- Not determined
- pH value
- >13
- Relative evaporation rate (butylacetate=1)
- Not determined
- Melting point
- Not applicable
- Freezing point
- Not applicable
- Boiling point
- 100 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not determined
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not determined
- Relative vapour density at 20°C
- Not determined
- Density
- 0.995 g/mL
- Solubility
- Miscible with water
- Log Pow
- Not determined
- Viscosity, kinematic
- Not determined
- Viscosity, dynamic
- Not determined
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions. Reacts violently with acids and oxidizing agents.
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
- Strong acids, strong oxidizers, 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, but may cause severe irritation and burns.
- Skin corrosion/irritation
- Causes severe skin burns.
- Serious eye damage/irritation
- Causes serious eye damage.
- Respiratory or skin sensitisation
- Not a skin 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 3267
- UN-No. (IMDG)
- UN 3267
- UN-No. (IATA)
- UN 3267
- UN-No. (ADN)
- UN 3267
- UN-No. (RID)
- UN 3267
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide)
- Proper Shipping Name (IMDG)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide)
- Proper Shipping Name (IATA)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide)
- Proper Shipping Name (ADN)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide)
- Proper Shipping Name (RID)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide)
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 8
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
Tetra Butyl Ammonium Hydroxide 40% aqueous solution is widely used in organic synthesis as a strong base and phase-transfer catalyst. It facilitates reactions such as alkylation, acylation, and various nucleophilic substitutions, particularly in systems where reactants are in different phases. This compound is also utilized in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals, where its ability to enhance reaction efficiency is highly valued. Additionally, it finds applications in the preparation of surfactants and in the extraction of metal ions in analytical chemistry.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1497F
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 259.50 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 40% | 40.2% |
| pH | >13 | >13.5 |
| Density | 0.995 g/mL | 0.995 g/mL |
| Moisture Content | <5% | 4.8% |
| Residue on Ignition | <0.5% | 0.3% |
The above product is expected to comply with 40% aqueous solution grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 40% aqueous solution | 40% | 100 °C | <5% | <0.5% | None detected | Miscible with water |
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