4,6-Dichloropyrimidine

  • Pyrimidine, 4,6-dichloro-
Formula
C4H2Cl2N2
Structure
Description
Solid.

Registry Numbers and Inventories.
CAS
1193-21-1
EC (EINECS/ELINCS)
214-770-2
R 34 36/37
S 26 36/37/39 45
UN (DOT)
3261
Beilstein/Gmelin
111195
Beilstein Reference
5-23-05-00346
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H2Cl2N2
Formula mass
148.97
Melting point, °C
64 - 66
Boiling point, °C
176
Vapor pressure, mmHg
1.5 (25 C)
Density
1.734 g/cm3
Solubility in water
Slightly soluble
Partition coefficient, pKow
1.29
Heat of vaporization
39.5 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Corrosives area.
Handling
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
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.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
No data.
Incompatibilities
Strong oxidizing agents, acids, acetic anhydride, acid chlorides, carbon dioxide.
Decomposition
Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
105
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use foam, dry chemical, or carbon dioxide.

Health.
Exposure effects
   Ingestion
Causes gastrointestinal tract burns.
   Inhalation
Causes chemical burns to the respiratory tract.
   Skin
Causes skin burns.
   Eyes
Causes eye burns. Lachrymator.

First aid
 
   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.

Transport.
UN number
3261
Response guide