Benzophenone

  • Phenyl ketone
  • Benzoylbenzene
  • Diphenyl ketone
Formula
C6H5COC6H5
Structure
Description
White solid with a flowery odor.
Uses
Fixative for heavy perfumes, such as geranium new-mown hay, especially when used in soaps. In the manufacture of antihistamines, hypnotics, insecticides.

Registry Numbers and Inventories.
CAS
119-61-9
EC (EINECS/ELINCS)
204-337-6
EC Class
dangerous for the environment
R 50/53
S 22 24/25
RTECS
DI9950000
RTECS class
Tumorigen; Mutagen
UN (DOT)
3077
Merck
13,1099
Beilstein/Gmelin
1238185
Beilstein Reference
4-07-00-0137
EPA OPP
315
Swiss Giftliste 1
G-1241
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C13H10O
Formula mass
182.22
Melting point, °C
47 - 49
Boiling point, °C
305.4
Vapor pressure, mmHg
0.004 (40 C)
Vapor density (air=1)
6.3
Critical temperature
821
Density
1.085 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
13.61 cp (25 C)
Surface tension
45.1 g/s2 at 20 C
Refractive index
1.5975 (20 C)
Heat of fusion
18.19 kJ/mol
Heat of vaporization
76.7 kJ/mol
Heat of combustion
-6523 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry area away from incompatible substances.
Handling
Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
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 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. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions.
Disposal code
3
Stability
Stable under normal shipping and handling conditions.
Incompatibilities
Strong oxidizing agents and strong reducing agents.
Decomposition
Carbon monoxide, carbon dioxide, acrid smoke and fumes.

Fire.
Flash Point,°C
150
Upper exp. limit, %
5.4
Lower exp. limit, %
0.7
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
Slight fire hazard when heated. Can react with oxidizing materials.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Animal feeding studies have resulted in liver and bone marrow damage.
   Ingestion
Ingestion of large amounts may cause gastrointestinal irritation. The toxicological properties of this substance have not been fully investigated.
   Inhalation
Causes respiratory tract irritation.
   Skin
Causes skin irritation. Animal feeding studies have resulted in liver and bone marrow damage.
   Eyes
Causes eye irritation.

First aid
 
   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
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. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
3077
Response guide
USCG CHRIS Code
BZP
 
HS Code
2914 39 00