Tetrapropyl ammonium hydroxide
- CAS Number
- 4499-86-9
- HSN Code
- 38229090
- Molecular Formula
- C12H29NO
- Catalogue Number
- AL2567L
- Purity
- 40%
- Molecular Weight
- 203.36 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Tetrapropyl ammonium hydroxide (TPAOH) is a quaternary ammonium compound that serves as a highly concentrated (40%) aqueous solution. It is primarily utilized in zeolite synthesis applications, where it acts as a structure-directing agent. This compound is notable for its ability to influence the formation of zeolite frameworks, making it essential in the production of various zeolite types. The solution is characterized by its high purity and is suitable for demanding chemical processes in both research and industrial settings.
Also known as TPAOH, Tetrapropylammonium hydroxide.
- Catalogue No.
- AL2567L
- CAS Number
- 4499-86-9
- Molecular Formula
- C12H29NO
- Molecular Weight
- 203.36 g/mol
- HSN Code
- 38229090
- Grade
- 40% solution in water
- Product Form
- Mixture
The product is a clear, colorless liquid with a density of 1.012 g/mL at 20°C. It has a boiling point of approximately 100°C, and it is soluble in water, forming a strongly alkaline solution. The pH of the solution is typically around 13, indicating its strong basicity. The solution is highly viscous, with a dynamic viscosity of about 1.0 mPa·s at 20°C. 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 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
- Tetrapropyl ammonium hydroxide
- Catalogue No.
- AL2567L
- Product form
- Mixture
- CAS Number
- 4499-86-9
- EC Number
- 224-207-0
- Grade
- 40% solution in water
- EC Index Number
- N/A
- Chemical Formula
- C12H29NO
- HSN Code
- 38229090
- Synonyms
- TPAOH, Tetrapropylammonium hydroxide
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a structure-directing agent in zeolite synthesis and other chemical 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
- Corrosive to metals; may cause severe skin burns and eye damage.
3.1 — Substance
- Name
- Tetrapropyl ammonium hydroxide
- CAS No.
- 4499-86-9
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention if symptoms persist.
- First-aid measures after skin contact
- Remove contaminated clothing. Rinse skin with plenty of water for at least 15 minutes. 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. Seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Burning sensation, severe skin burns, eye damage, respiratory distress.
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 water to release heat.
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 personal protective equipment (PPE) such as gloves, goggles, and face shield. 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 tightly closed containers in a cool, dry place, away from incompatible materials such as acids and oxidizers.
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 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
- 1.012 g/mL
- Solubility
- Soluble in water
- Log Pow
- Not determined
- Viscosity, kinematic
- Not determined
- Viscosity, dynamic
- ~1.0 mPa·s
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions. Reacts with acids to form salts.
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 swallowed or inhaled; causes severe skin burns and eye damage.
- 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 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)
- Tetrapropyl ammonium hydroxide solution
- Proper Shipping Name (IMDG)
- Tetrapropyl ammonium hydroxide solution
- Proper Shipping Name (IATA)
- Tetrapropyl ammonium hydroxide solution
- Proper Shipping Name (ADN)
- Tetrapropyl ammonium hydroxide solution
- Proper Shipping Name (RID)
- Tetrapropyl ammonium 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
Tetrapropyl ammonium hydroxide 40% solution is primarily used in zeolite synthesis, where it serves as a structure-directing agent to facilitate the formation of specific zeolite frameworks. This compound is also utilized in various chemical synthesis processes, including the production of catalysts and ion-exchange materials. Additionally, it finds applications in the semiconductor industry for cleaning and etching processes, as well as in the formulation of specialty surfactants and emulsifiers. Its strong basic properties make it valuable in organic synthesis and analytical chemistry.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL2567L
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 203.36 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay (Purity) | 40% | 40.2% |
| Density | 1.012 g/mL | 1.010 g/mL |
| pH | ~13 | 12.8 |
| Moisture Content | <5% | 4.8% |
| Residue on Ignition | <0.5% | 0.3% |
| Related Substances | None detected | None detected |
The above product is expected to comply with 40% solution in water grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 40% solution in water | 40% | Not applicable | <5% | <0.5% | None detected | Completely soluble in water |
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