1,3,5-Benzenetriol

  • Phloroglucinol
Formula
C6H3(OH)3
Structure
Description
White powder.
Uses
Substance is used in diazo-type printing, textile dyeing.

Registry Numbers and Inventories.
CAS
108-73-6
EC (EINECS/ELINCS)
203-611-2
EC Class
irritant
R 36/37/38
RTECS
SY1050000
RTECS class
Drug; Mutagen; Reproductive Effector
Merck
12,7482
Beilstein/Gmelin
1341907
Beilstein Reference
4-06-00-07361
Swiss Giftliste 1
G-6003
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H6O3
Formula mass
126.11
Melting point, °C
217 - 220
Boiling point, °C
400
Vapor pressure, mmHg
6E-7 (25 C)
Density
1.46 g/cm3
Solubility in water
10 g/L
pKa/pKb
9.06 (pKa)
Partition coefficient, pKow
0.06
Heat of vaporization
67.6 kJ/mol
Heat of combustion
-2634 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use. Dark room.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidants.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
215
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Health.
Poison_Class
4
Exposure effects
Irritating to eyes, respiratory system and skin. The toxicological properties of this material have not been investigated.

First aid
 
   Ingestion
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
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.

Transport.
HS Code
2907 29 00