Product Identification

Product Name

2-Pyridylhydrazine

Synonyms

(Pyridin-2-yl)hydrazine
2-Hydrazinopyridine
2-Hydrazinylpyridine
2-Pyridinylhydrazine

CAS

4930-98-7

Formula

C5H7N3

Molecular Weight

109.13

EINECS

225-566-8

Beilstein/Gmelin

109984

Physical and Chemical Properties

Appearance

Deep red, crystalline lumps.

Solubility in water

40 g/L (25 C)

Melting Point

46 - 47

Boiling Point

237

Vapor Pressure

0.046 (25 C)

pKa/pKb

9.72 (pKa)

Partition Coefficient

-.21

Heat Of Vaporization

47.36 kJ/mol

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.

Eyes

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage

Keep tightly closed. Store at 2-8 C

Hazards Identification

Inhalation

Material is irritating to mucous membranes and upper respiratory tract.

Hazards

Emits toxic fumes under fire conditions. Irritant. Harmful solid or liquid (physical state is temperature dependent).

EC Risk Phrase

36/37/38

EC Safety Phrase

26 36

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.

Respirators

Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a dust mask type N95 (US) or type P1 (EN 143) respirator.

Exposure Effects

Causes eye and skin irritation. May be harmful by inhalation, ingestion, or skin absorption.

Fire Fighting Measures

Flash Point

97

Fire Fighting

Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Incompatibilities

Strong oxidizing agents, Strong acids, Acid chlorides, Acid anhydrides.

Decomposition

Carbon monoxide, Carbon dioxide, Nitrogen oxides.