Product Identification

Product Name

1,8-Diazabicyclo[5.4.0]undec-7-ene

Synonyms

1,8-Diazabicyclo[5.4.0]undec-7-ene
1,8-Diazabicyclo[5.4.0]undecene-7
2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepine
Polycat DBU
U-CAT SA 851

CAS

6674-22-2

Formula

C9H16N2

Molecular Weight

152.24

EINECS

229-713-7

Beilstein/Gmelin

508906

Beilstein Reference

5-23-05-00271

EC Class

harmful, corrosive, dangerous for the environment

Physical and Chemical Properties

Appearance

Clear very light yellow liquid.

Solubility in water

Very soluble

Melting Point

-70

Boiling Point

275

Vapor Pressure

0.15 (25 C)

Density

1.01 g/cm3

pKa/pKb

12.84 (pKa)

Partition Coefficient

2.06

Heat Of Vaporization

51.3 kJ/mol

Refractive Index

1.52 (20 C)

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. 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. Discard contaminated clothing in a manner which limits further exposure.

Eyes

Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Handling and Storage

Storage

Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Do not get water inside containers.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Discard contaminated shoes.

Hazards Identification

Ingestion

May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May be harmful if swallowed.

Inhalation

Mist or vapor is extremely irritating.

Skin

Causes skin burns. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.

Eyes

Causes eye burns. Lachrymator. Mist or vapor is extremely irritating.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 21/22 34 52/53

EC Safety Phrase

S 26 36/37/39 45 61

UN (DOT)

1760

Exposure Controls/Personal Protection

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 minimize contact with skin. 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.

Fire Fighting Measures

Flash Point

116

Autoignition

260

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. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.

Upper exp. limit

6.5

Lower exp. limit

1.1

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

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. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Disposal Code

1

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, acids, acid chlorides, acid anhydrides, chloroformates.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Combustion Products

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

Transport Information

UN Number

1760

Hazard Class

8

Packing Group

I; II; III

HS Code

2933 99 30