Tetramethylammonium hydroxide
- CAS Number
- -
- HSN Code
- 38229090
- Molecular Formula
- (CH3)4N(OH)
- Catalogue Number
- AL2572E
- Purity
- ≥ 99%
- Molecular Weight
- 91.15 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Tetramethylammonium hydroxide 1M solution in water is a ready-to-use standardized aqueous preparation primarily utilized in organic synthesis and titration processes. This compound is a quaternary ammonium hydroxide, notable for its strong basicity and ability to act as a nucleophile in various chemical reactions. The solution is prepared to a concentration of 1M, ensuring consistent reactivity and performance in laboratory applications. Its molecular weight of 91.15 g/mol and molecular formula of (CH3)4N(OH) further characterize its chemical identity, making it a valuable reagent in synthetic organic chemistry.
Also known as Tetramethylammonium hydroxide solution.
- Catalogue No.
- AL2572E
- CAS Number
- -
- Molecular Formula
- (CH3)4N(OH)
- Molecular Weight
- 91.15 g/mol
- HSN Code
- 38229090
- Grade
- 1M solution in water
- Product Form
- Substance
The product appears as a clear, colorless liquid, indicative of its high purity and lack of impurities. It has a density of approximately 0.9 g/cm³, which is typical for aqueous solutions of quaternary ammonium compounds. The boiling point of tetramethylammonium hydroxide is around 100 °C, while it has a freezing point of approximately -10 °C. This solution is highly soluble in water, reflecting its ionic nature, and has a pH value of around 13, confirming its strong basicity. The solution is stable under normal conditions but should be stored away from acids and oxidizing agents.
- Appearance
- Clear, colorless liquid
- Shelf Life
- 12 months
- Packaging
- Available in 500 mL and 1 L bottles
- Storage
- Store in a cool, dry place, away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Tetramethylammonium hydroxide
- Catalogue No.
- AL2572E
- Product form
- Substance
- CAS Number
- Not applicable
- EC Number
- 200-898-2
- Grade
- 1M solution in water
- EC Index Number
- Not applicable
- Chemical Formula
- (CH3)4N(OH)
- HSN Code
- 38229090
- Synonyms
- Tetramethylammonium hydroxide solution
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a strong base in organic synthesis and titration
- 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
- Tetramethylammonium hydroxide
- CAS No.
- Not applicable
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 plenty of soap and water. Remove contaminated clothing. 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 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, respiratory distress, skin irritation, and eye damage.
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 react with acids to produce heat and toxic gases.
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 protective equipment. 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 personal protective equipment (PPE) such as gloves and goggles. Avoid contact with skin and eyes.
- 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, in a tightly closed container, away from 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
- Colorless
- Odour
- Ammoniacal
- Odour threshold
- Not determined
- pH value
- 13
- Relative evaporation rate (butylacetate=1)
- Not determined
- Melting point
- Not determined
- Freezing point
- -10 °C
- Boiling point
- 100 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not determined
- Flammability (solid, gas)
- Not applicable
- Vapour pressure
- Not determined
- Relative vapour density at 20°C
- Not determined
- Density
- 0.9 g/cm³
- Solubility
- Soluble in water
- Log Pow
- Not determined
- Viscosity, kinematic
- Not determined
- Viscosity, dynamic
- Not determined
- Explosive properties
- Not applicable
- Oxidising properties
- Not applicable
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions, but reacts violently with acids.
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, oxidizing agents, and metals.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if swallowed, inhaled, or absorbed through skin.
- 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)
- May cause respiratory irritation.
- 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 3423
- UN-No. (IMDG)
- UN 3423
- UN-No. (IATA)
- UN 3423
- UN-No. (ADN)
- UN 3423
- UN-No. (RID)
- UN 3423
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Tetramethylammonium hydroxide solution
- Proper Shipping Name (IMDG)
- Tetramethylammonium hydroxide solution
- Proper Shipping Name (IATA)
- Tetramethylammonium hydroxide solution
- Proper Shipping Name (ADN)
- Tetramethylammonium hydroxide solution
- Proper Shipping Name (RID)
- Tetramethylammonium hydroxide solution
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
Tetramethylammonium hydroxide 1M solution is widely used in organic synthesis as a strong base and catalyst, particularly in reactions requiring nucleophilic attack. It is commonly employed in the synthesis of various organic compounds, including pharmaceuticals and agrochemicals. Additionally, this solution is utilized in titration methods to determine the concentration of acidic substances in various samples. Its applications extend to the semiconductor industry, where it is used in the cleaning and etching processes of silicon wafers. Furthermore, it serves as a reagent in analytical chemistry for the determination of certain metal ions and in the preparation of other chemical derivatives.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL2572E
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 91.15 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 99% | 99.5% |
| pH | 13 | 13.2 |
| Density | 0.9 g/cm³ | 0.89 g/cm³ |
| Moisture content | < 1% | 0.5% |
| Residue on ignition | < 0.1% | 0.05% |
| Related substances | None detected | None detected |
The above product is expected to comply with 1M solution in water grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 1M solution in water | ≥ 99% | Not applicable | < 1% | < 0.1% | None detected | Completely soluble in water |
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