2,2,6,6-Tetramethylpiperidine 768-66-1 The best in China CAS NO.768-66-1

2,2,6,6-Tetramethylpiperidine Basic information
Product Name: 2,2,6,6-Tetramethylpiperidine
Synonyms: HTMP;2,2,6,6-TETRAMETHYLPIPERIDINE;2,2,6,6-tetramethyl-piperidin;Norpempidine;2,2,6,6-TETRAMETHYLPIPERIDINE, 99+%;2,2,6,6-Tetramethylpiperidien;TETRAMETHYLPIPERIDINE;Piperidine, 2,2,6,6-tetramethyl-
CAS: 768-66-1
MF: C9H19N
MW: 141.25
EINECS: 212-199-3
Product Categories: Industrial/Fine Chemicals;Piperidines, Piperidones, Piperazines;Piperidine;API intermediates;Organic BasesBuilding Blocks;Chemical Synthesis;Heterocyclic Building Blocks;Piperidines;Synthetic Reagents;Fine Chemical
Mol File: 768-66-1.mol
2,2,6,6-Tetramethylpiperidine Structure
2,2,6,6-Tetramethylpiperidine Chemical Properties
mp  -59°C
bp  152 °C(lit.)
density  0.837 g/mL at 25 °C(lit.)
refractive index  n20/D 1.445(lit.)
Fp  76 °F
storage temp.  Flammables area
solubility  MISCIBLE
Water Solubility  MISCIBLE
BRN  103296
CAS DataBase Reference 768-66-1(CAS DataBase Reference)
NIST Chemistry Reference Piperidine, 2,2,6,6-tetramethyl-(768-66-1)
EPA Substance Registry System Piperidine, 2,2,6,6-tetramethyl-(768-66-1)
Safety Information
Hazard Codes  Xn,F,C
Risk Statements  10-22-36/37/38
Safety Statements  26-37/39-16
RIDADR  UN 1992 3/PG 3
WGK Germany  2
RTECS  TN4220000
HazardClass  3
PackingGroup  III
HS Code  29333999

【Product Name】

HTMP
【Synonyms】

Norpempidine
TEMP
【CAS】

768-66-1
【Formula】

C9H19N
【Molecular Weight】

141.26
【EINECS】

212-199-3
【RTECS】

TN4220000
【RTECS Class】

Drug
【Beilstein/Gmelin】

103296
【Beilstein Reference】

5-20-04-00237
【EC Class】

flammable
Physical and Chemical Properties Back to Contents
【Appearance】

Clear light yellow liquid. Aminous odor.
【Solubility in water】

Very soluble
【Melting Point】

10 - 11
【Boiling Point】

152
【Vapor Pressure】

3 (25 C)
【Density】

0.8367 g/cm3 (16.2 C)
【pKa/pKb】

11.49 (pKb)
【Partition Coefficient】

3
【Heat Of Vaporization】

44.46 kJ/mol
【Heat Of Combustion】

-6050 kJ/mol
【Usage】

Used in chemistry as a hindered base because it can dissolve in organic solvents unlike ordinary bases such as potassium hydroxide.
【Vapor Density】

4.87
【Refractive Index】

1.4455 (20 C)
First Aid Measures Back to Contents
【Ingestion】

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and Storage Back to Contents
【Storage】

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
【Handling】

Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Hazards Identification Back to Contents
【Inhalation】

Causes respiratory tract irritation. May cause narcotic effects in high concentration. Aspiration may lead to pulmonary edema. Vapors may cause dizziness or suffocation. Can produce delayed pulmonary edema. May cause burning sensation in the chest.
【Skin】

May cause irritation and dermatitis. May cause cyanosis of the extremities.
【Eyes】

Causes eye irritation. May cause chemical conjunctivitis and corneal damage.
【Ingestion】

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause a narcotic effect with possible coma. Ingestion of large amounts may cause CNS depression.
【Hazards】

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
【EC Risk Phrase】

R 10 22 36/37/38
【EC Safety Phrase】

S 16 26 36/37/39
【UN (DOT)】

1993
Exposure Controls/Personal Protection Back to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
【Exposure Effects】

Effects may be delayed.
Fire Fighting Measures Back to Contents
【Flash Point】

24
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.
【Fire Potential】

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Accidental Release Measures Back to Contents
【Small spills/leaks】

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Stability and Reactivity Back to Contents
【Disposal Code】

5
【Stability】

Stable at room temperature in closed containers under normal storage and handling conditions.
【Incompatibilities】

Strong acids, strong bases, strong oxidizing agents.
【Decomposition】

Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
Transport Information Back to Contents
【UN Number】

1993
【Hazard Class】

3
【Packing Group】

I; II; III
【HS Code】

2933 39 99