ChemicalBook >>2,4-Dihydroxybenzaldehyde>>2,4-Dihydroxybenzaldehyde(95-01-2)

2,4-Dihydroxybenzaldehyde(95-01-2)

2,4-Dihydroxybenzaldehyde(95-01-2)
Product IdentificationBack to Contents
【Product Name】

2,4-Dihydroxybenzaldehyde
【Synonyms】

4-Formylresorcinol
beta-Resorcylaldehyde
【CAS】

95-01-2
【Formula】

C7H6O3
【Molecular Weight】

138.12
【EINECS】

202-383-1
【RTECS】

VH3600000
【RTECS Class】

Drug
【Merck】

12,8324
【Beilstein/Gmelin】

878548
【Beilstein Reference】

4-08-00-01753
【EC Class】

harmful, irritant
Physical and Chemical PropertiesBack to Contents
【Appearance】

Light yellow to beige flakes.
【Solubility in water】

Soluble
【Melting Point】

132 - 133
【Boiling Point】

351
【Vapor Pressure】

2E-5 (25 C)
【Density】

1.448 g/cm3 (-93 C)
【pKa/pKb】

7.41 (pKa)
【Partition Coefficient】

1.38
【Heat Of Vaporization】

61.9 kJ/mol
【Heat Of Combustion】

-3096 kJ/mol
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.
【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. 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 StorageBack to Contents
【Storage】

Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
【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
【Ingestion】

May cause irritation of the digestive tract.
【Inhalation】

May cause respiratory tract irritation.
【Skin】

May cause skin irritation.
【Eyes】

May cause eye irritation.
【Hazards】

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers.
【EC Risk Phrase】

R 22 36/37/38
【EC Safety Phrase】

S 26 36/37/39
【UN (DOT)】

1988
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.
【Poison Class】

3
Fire Fighting MeasuresBack to Contents
【Flash Point】

135
【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】

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
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
【Stability】

Stable under normal temperatures and pressures. Prolonged exposure to moist air converts this substance to a brown amorphous powder which is insoluable in ether.
【Incompatibilities】

Strong oxidizing agents, strong bases.
【Decomposition】

Carbon monoxide, carbon dioxide.
【Combustion Products】

Fire will produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

1988
【Hazard Class】

3
【Packing Group】

I; II; III
【HS Code】

2912 49 00
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