Tetramethylammonium hydroxide 1M solution in methanol
- CAS Number
- -
- HSN Code
- 38229090
- Molecular Formula
- C4H11NO
- Catalogue Number
- AL2572B
- 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 methanol is a standardized preparation widely used in organic synthesis and titration applications. This solution contains tetramethylammonium hydroxide, a quaternary ammonium compound that acts as a strong base. It is notable for its high purity and consistency, making it ideal for laboratory use. The solution is prepared in methanol, which serves as a solvent, facilitating its use in various chemical reactions and analytical procedures.
Also known as Tetramethylammonium hydroxide, TMAH.
- Catalogue No.
- AL2572B
- CAS Number
- -
- Molecular Formula
- C4H11NO
- Molecular Weight
- 91.15 g/mol
- HSN Code
- 38229090
- Grade
- 1M solution
- Product Form
- Mixture
The product appears as a clear, colorless liquid, indicative of its high purity. It has a density of approximately 0.79 g/cm³ at 20°C, and its boiling point is around 64.7°C, which is characteristic of methanol solutions. The solution is highly soluble in water and other polar solvents, and it has a pH value that is significantly alkaline due to the presence of tetramethylammonium hydroxide. The flash point of methanol is 11.1°C, which is important for handling and storage considerations.
- 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 heat sources and incompatible materials.
1.1 — Product identifier
- Chemical Name
- Tetramethylammonium hydroxide 1M solution in methanol
- Catalogue No.
- AL2572B
- Product form
- Mixture
- CAS Number
- Not applicable
- EC Number
- 200-898-0
- Grade
- 1M solution
- EC Index Number
- 611-002-00-0
- Chemical Formula
- C4H11NO
- HSN Code
- 38229090
- Synonyms
- Tetramethylammonium hydroxide, TMAH
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 applications.
- 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
- Highly corrosive and toxic; flammable due to methanol content.
3.1 — Substance
- Name
- Tetramethylammonium hydroxide 1M solution in methanol
- 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. 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
- Corrosive effects on skin and eyes; respiratory irritation; potential for central nervous system effects if inhaled or ingested.
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 liquid; may produce 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
- Evacuate area and ventilate. Contain spill and absorb with inert material.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Wear appropriate protective equipment. Dispose of waste according to 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 tightly closed containers in a cool, dry place 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
- Characteristic methanol odor
- Odour threshold
- Not determined
- pH value
- >13
- Relative evaporation rate (butylacetate=1)
- >1
- Melting point
- Not applicable
- Freezing point
- Not applicable
- Boiling point
- 64.7°C
- Flash point
- 11.1°C
- Auto-ignition temperature
- Not determined
- Decomposition temperature
- Not determined
- Flammability (solid, gas)
- Not applicable
- Vapour pressure
- Approximately 12.3 mmHg at 20°C
- Relative vapour density at 20°C
- 1.11
- Density
- 0.79 g/cm³
- Solubility
- Soluble in water and polar solvents
- Log Pow
- Not determined
- Viscosity, kinematic
- Not determined
- Viscosity, dynamic
- Not determined
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Lower: 5.5% vol, Upper: 36% vol
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; reacts violently with strong 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
- Toxic if inhaled, ingested, or absorbed through skin; LD50 (oral, rat) is 100-300 mg/kg.
- Skin corrosion/irritation
- Causes severe skin burns and eye damage.
- 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 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. (Tetramethylammonium hydroxide in methanol)
- Proper Shipping Name (IMDG)
- Corrosive liquid, basic, organic, n.o.s. (Tetramethylammonium hydroxide in methanol)
- Proper Shipping Name (IATA)
- Corrosive liquid, basic, organic, n.o.s. (Tetramethylammonium hydroxide in methanol)
- Proper Shipping Name (ADN)
- Corrosive liquid, basic, organic, n.o.s. (Tetramethylammonium hydroxide in methanol)
- Proper Shipping Name (RID)
- Corrosive liquid, basic, organic, n.o.s. (Tetramethylammonium 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
Tetramethylammonium hydroxide 1M solution in methanol is primarily used as a strong base in non-aqueous organic synthesis, where it serves as a catalyst for various reactions. It is also employed in titration applications, particularly in determining the acidity of organic compounds. Additionally, this solution is utilized in the preparation of other chemical compounds and in research settings where precise control of pH is required. Industries such as pharmaceuticals, agrochemicals, and materials science frequently use this reagent for its effectiveness in facilitating chemical transformations.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL2572B
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 91.15 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | >99% | >99.5% |
| pH | >13 | >13.5 |
| Density | 0.79 g/cm³ | 0.78 g/cm³ |
| Appearance | Clear, colorless liquid | Clear, colorless liquid |
| 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 grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 1M solution | >99% | Not applicable | <1% | <0.1% | None detected | Completely miscible in water |
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