Product Identification

Product Name

N-Methylpiperidine

Synonyms

N-methylpiperidine
Pipecoline

CAS

626-67-5

Formula

C6H13N

Molecular Weight

99.18

EINECS

210-959-9

RTECS

TN1225000

RTECS Class

Other

Beilstein/Gmelin

1073

Beilstein Reference

5-20-02-00021

EC Class

highly flammable, harmful, corrosive

Physical and Chemical Properties

Appearance

A colorless liquid with the odor of pepper.

Solubility in water

Miscible

Melting Point

-69

Boiling Point

106.5

Vapor Pressure

31 (20 C)

Density

0.821 g/cm3 (15 C)

pKa/pKb

10.08(at 25℃) (pKa)

Partition Coefficient

.98

Heat Of Vaporization

34.5 kJ/mol

Usage

Laboratory use. Catalyst. Reaction of phenyl isothiocyanate and diphenylphosphinic hydrazide.

Refractive Index

1.4355 (20 C)

First Aid Measures

Ingestion

Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

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

Skin

Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

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

Use only in a well ventilated area. Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Take precautionary measures against static discharges. Use only in a chemical fume hood.

Hazards Identification

Ingestion

Harmful if swallowed. Causes gastrointestinal tract burns.

Inhalation

Harmful if inhaled. Causes chemical burns to the respiratory tract. May cause burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.

Skin

Causes skin burns. May be harmful if absorbed through the skin.

Eyes

Causes eye burns.

Hazards

May be ignited by heat, sparks or flames. 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. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

EC Risk Phrase

R 11 34

EC Safety Phrase

S 16 26 36/37/39 45

UN (DOT)

2399

Exposure Controls/Personal Protection

Personal Protection

Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Poison Class

2

Fire Fighting Measures

Flash Point

3

Autoignition

205

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Extinguishing media: Use water spray to cool fire-exposed containers. Water may be ineffective. In case of fire, use carbon dioxide, dry chemical powder or appropriate foam.

Upper exp. limit

9.9

Lower exp. limit

1.1

Fire Potential

Flammable/combustible material.

Accidental Release Measures

Small spills/leaks

Avoid runoff into storm sewers and ditches which lead to waterways. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition. Use a spark-proof tool.

Stability and Reactivity

Disposal Code

5

Incompatibilities

Acids, acid chlorides, carbon dioxide, acid anhydrides, oxidizing agents, bases.

Stability

Stable under normal temperatures and pressures.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Combustion Products

Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2399

Hazard Class

3

Packing Group

II

HS Code

2933 39 99