ChemicalBook >>Maleic hydrazide>>3,6-Pyridazinediol(123-33-1)

3,6-Pyridazinediol(123-33-1)

3,6-Pyridazinediol(123-33-1)
Product IdentificationBack to Contents
【Product Name】

3,6-Pyridazinediol
【Synonyms】

1,2-Dihydropyridazine-3,6-dione
3,6-Pyridazinediol
Antergon
Maleic acid hydrazide
Maleic hydrazide
Vondalhyde
【CAS】

123-33-1
【Formula】

C4H4N2O2
【Molecular Weight】

112.09
【EINECS】

204-619-9
【RTECS】

UR5950000
【RTECS Class】

Agricultural Chemical and Pesticide; Tumorigen; Mutagen
【Merck】

13,5728
【Beilstein/Gmelin】

112223
【Beilstein Reference】

5-24-06-00012
Physical and Chemical PropertiesBack to Contents
【Appearance】

Odorless white solid.
【Solubility in water】

Very soluble
【Melting Point】

292
【Density】

1.60 g/cm3 (20 C)
【pKa/pKb】

9.21 (pKa)
【Partition Coefficient】

-.84
【Heat Of Vaporization】

【Heat Of Combustion】

-2114 kJ/mol
【Usage】

Experimental use: in horticulture & agriculture, in synthesis of pyridazine.
【Odor threshold】

Odorless
First Aid MeasuresBack to Contents
【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 if irritation or symptoms occur.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
【Skin】

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.
Handling and StorageBack to Contents
【Storage】

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】

Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards IdentificationBack to Contents
【Inhalation】

Dust is irritating to the respiratory tract.
【Skin】

May cause skin irritation.
【Eyes】

Dust may cause mechanical irritation.
【Ingestion】

May cause irritation of the digestive tract. May cause central nervous system effects.
【EC Risk Phrase】

R 36/37/38 40
【EC Safety Phrase】

S 26 36/37/39
【UN (DOT)】

2811
Exposure Controls/Personal ProtectionBack to Contents
【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.
【Exposure Effects】

Chronic ingestion may cause liver damage.
【Poison Class】

4
Fire Fighting MeasuresBack to Contents
【Flash Point】

300
【Autoignition】

430
【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】

Combustible solid.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stability and ReactivityBack to Contents
【Disposal Code】

3
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents, strong acids, pesticides which are highly alkaline in reaction.
【Decomposition】

Nitrogen oxides, carbon monoxide, carbon dioxide.
【Combustion Products】

Toxic nitrogen oxides are produced.
Transport InformationBack to Contents
【UN Number】

2811
【HS Code】

2933 99 90
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