Home > 4,4'-Dipyridyl > 4,4'-Dipyridyl(553-26-4)

4,4'-Dipyridyl(553-26-4)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
4,4'-Dipyridyl

Synonyms
4-(4-Pyridyl)pyridine
4,4'-Dipyridine
4,4'-Dipyridyl
4-Pyridin-4-ylpyridine

CAS
553-26-4

Formula
C10H8N2

Molecular Weight
156.19

EINECS
209-036-3

RTECS
DW1760000

RTECS Class
Other

Merck
13,3383

Beilstein/Gmelin
113176

Beilstein Reference
5-23-08-00028

EC Class
toxic

Physical and Chemical Properties

Appearance
Off-white solid.

Solubility in water
Slightly soluble

Melting Point
78

Boiling Point
305

Vapor Pressure
0.0015 (25 C)

pKa/pKb
10.73 (pKb)

Partition Coefficient
1.2

Heat Of Vaporization
52.3 kJ/mol

Usage
Intermediate product.

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.

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 immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes
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
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.

Inhalation
Inhalation of dust may cause respiratory tract irritation.

Skin
May cause skin irritation.

Eyes
May cause eye irritation.

Hazards
Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase
R 20/21 25 36/37/38

EC Safety Phrase
S 22 26 36/37/39 45

UN (DOT)
2811

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 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
3

Fire Fighting Measures

Flash Point
104

Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

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