Physical and Chemical Properties of Tetramethylpiperidine

Basic Information about Tetramethylpiperidine:

Common names: 2,2,6,6-Tetramethylpiperidine, TEMP, TMP

CAS NO: 768-66-1

Chromatographic purity: ≥99.0%

Molecular formula: C₉H₁₉N

Molecular weight: 141.25

Flash point: 76 °F

Density: 0.837 g/mL at 25 °C (lit.)

Main function: Used in the synthesis of hindered amine light stabilizers

About us: Over 15 years of experience in the production of 2,2,6,6-Tetramethylpiperidine

Tetramethylpiperidine (CAS No.: 768-66-1) is an organic compound with a unique structure and distinct physical and chemical properties, which make it valuable in various fields. Below are some of the basic physical and chemical properties of Tetramethylpiperidine:

I. Physical Properties

Appearance and Characteristics:

Tetramethylpiperidine is typically observed as a colorless to light yellow liquid or solid (depending on the temperature).

Boiling Point:

Tetramethylpiperidine has a relatively high boiling point, with the specific value depending on its purity and environmental conditions.

Melting Point:

The melting point is also affected by the purity and specific sample conditions, so the exact value may vary.

Solubility:

Its solubility in water is relatively low, but it dissolves well in most organic solvents such as ethanol, ether, and chloroform.

II. Chemical Properties

Stability:

Under normal temperature and pressure, Tetramethylpiperidine exhibits good chemical stability and is not prone to decomposition.

Reactivity:

As an organic base, tetramethylpiperidine can react with acids to form salts, and it can also participate in various organic synthesis reactions, such as N-alkylation, alkylation, and coupling reactions.

Acid-Base Nature:

Tetramethylpiperidineacts as a typical basic compound and can react with acids to produce the corresponding salts.

Optical Properties:

Its optical properties are rarely reported because it does not contain any chiral centers and, therefore, does not exhibit optical activity.

III. Safety Properties

Flammability:

Tetramethylpiperidine is flammable and should be stored away from open flames.

Toxicity:

It is somewhat toxic and may cause irritation to the eyes, skin, and respiratory system.

Environmental Impact:

Care should be taken to avoid its release into the environment, as it may be harmful to aquatic organisms.

IV. Applications

Due to its unique properties, tetramethylpiperidine has found wide applications in pharmaceutical synthesis, organic catalysis, pesticide development, and materials science. Its usage, particularly as an intermediate and catalyst in organic synthesis, is increasing.

The above summary of the physical and chemical properties and safety information for Tetramethylpiperidine provides a basis for further chemical research and industrial application. In practical applications, appropriate operating conditions and safety measures should be selected based on the specific situation.