Tetra Butyl Ammonium Hydroxide 25% solution in Methanol
- CAS Number
- 2052-49-5
- HSN Code
- 38229090
- Molecular Formula
- C16H37NO
- Catalogue Number
- AL1497H
- Purity
- 25% Tetra Butyl Ammonium Hydroxide
- Molecular Weight
- 258.48 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Tetra Butyl Ammonium Hydroxide 25% solution in Methanol is a concentrated methanol-based solution of tetrabutylammonium hydroxide, a quaternary ammonium compound. This product is notable for its strong basicity and is widely used in organic synthesis applications. The solution is particularly useful in non-aqueous reactions and as a catalyst in various chemical processes. Its unique properties make it an essential reagent in laboratories focused on organic chemistry and related fields.
Also known as TBAH, Tetrabutylammonium hydroxide.
- Catalogue No.
- AL1497H
- CAS Number
- 2052-49-5
- Molecular Formula
- C16H37NO
- Molecular Weight
- 258.48 g/mol
- HSN Code
- 38229090
- Grade
- 25% solution in methanol
- Product Form
- Mixture
The product appears as a clear, colorless to pale yellow liquid with a density of 0.830 g/mL. It has a boiling point of approximately 64 °C (147 °F) due to the methanol solvent. The solution is miscible with water and other polar solvents, making it versatile for various applications. The pH of the solution is highly alkaline, typically above 12, reflecting its strong basic nature. The flash point of methanol is 11 °C (52 °F), indicating flammability, and it should be handled with care.
- Appearance
- Clear, colorless to pale yellow liquid
- Shelf Life
- 12 months
- Packaging
- Available in 500 mL and 1 L bottles
- Storage
- Store in a cool, dry place away from heat sources and incompatible materials.
1.1 — Product identifier
- Chemical Name
- Tetra Butyl Ammonium Hydroxide 25% solution in Methanol
- Catalogue No.
- AL1497H
- Product form
- Mixture
- CAS Number
- 2052-49-5
- EC Number
- 218-999-1
- Grade
- 25% solution in methanol
- 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
- Used as a strong base catalyst in organic synthesis and non-aqueous titration research.
- 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 and flammable; may cause skin and eye irritation.
3.1 — Substance
- Name
- Tetra Butyl Ammonium Hydroxide 25% solution in Methanol
- 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
- Wash with soap and water. If irritation occurs, seek medical attention.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and 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 the respiratory tract, skin, and eyes; 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
- Flammable due to methanol content; 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. Wear appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Contain spill and absorb with inert material. 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
- Use in a fume hood with 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 a cool, dry place, away from heat and incompatible materials.
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
- Characteristic methanol odor
- Odour threshold
- Not established
- pH value
- >12
- Relative evaporation rate (butylacetate=1)
- Not established
- Melting point
- Not applicable
- Freezing point
- Not applicable
- Boiling point
- 64 °C (147 °F)
- Flash point
- 11 °C (52 °F)
- Auto-ignition temperature
- Not established
- Decomposition temperature
- Not established
- Flammability (solid, gas)
- Not applicable
- Vapour pressure
- Not established
- Relative vapour density at 20°C
- Not established
- Density
- 0.830 g/mL
- Solubility
- Miscible with water and polar solvents
- Log Pow
- Not established
- Viscosity, kinematic
- Not established
- Viscosity, dynamic
- Not established
- Explosive properties
- Not applicable
- Oxidising properties
- Not applicable
- Explosive limits
- Not established
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; reacts with acids and strong oxidizers.
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
- May be harmful if inhaled or ingested; causes skin and eye irritation.
- Skin corrosion/irritation
- Causes skin irritation; may cause burns on prolonged contact.
- Serious eye damage/irritation
- Causes serious eye irritation; may cause burns.
- 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 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 in Methanol)
- Proper Shipping Name (IMDG)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide in Methanol)
- Proper Shipping Name (IATA)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide in Methanol)
- Proper Shipping Name (ADN)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide in Methanol)
- Proper Shipping Name (RID)
- Corrosive liquid, basic, organic, n.o.s. (Tetra Butyl Ammonium Hydroxide in Methanol)
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 25% solution in Methanol is primarily used as a strong base catalyst in organic synthesis, facilitating various reactions such as alkylation, acylation, and deprotonation. It is also employed in non-aqueous titration research, where traditional aqueous methods are not applicable. Additionally, this compound finds applications in the synthesis of surfactants, pharmaceuticals, and agrochemicals, making it valuable in the chemical manufacturing and research industries.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1497H
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 258.48 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 25% Tetra Butyl Ammonium Hydroxide | 25.2% |
| Density | 0.830 g/mL | 0.828 g/mL |
| pH | >12 | >12.5 |
| Moisture Content | <5% | 4.8% |
| Residue on Ignition | <1% | 0.5% |
The above product is expected to comply with 25% solution in methanol grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 25% solution in methanol | 25% Tetra Butyl Ammonium Hydroxide | Not applicable | <5% | <1% | None detected | Miscible with water |
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