DL-Mandelic acid

  • a-Hydroxyphenylacetic acid
  • Benzeneacetic acid, a-hydroxy-
  • Almond acid
  • Amygdalic acid
  • Paramandelic acid
  • Phenylglycolic acid
Formula
C8H8O3
Structure
Description
White crystalline powder with a faint odor.

Registry Numbers and Inventories.
CAS
611-72-3
EC (EINECS/ELINCS)
210-277-1
RTECS
OO6300000
Beilstein/Gmelin
510011
Beilstein Reference
4-10-00-00565
Canada DSL/NDSL
DSL
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C8H8O3
Formula mass
152.15
Melting point, °C
117 - 120
Boiling point, °C
322
Vapor pressure, mmHg
0.0001 (25 C)
Vapor density (air=1)
1.3
Density
1.361 g/cm3
Solubility in water
150 g/L
Refractive index
1.5204
pKa/pKb
3.41 (pKa)
Partition coefficient, pKow
0.92
Heat of fusion
26.8 kJ/mol
Heat of vaporization
59.5 kJ/mol

Hazards and Protection.
Storage
Do not store in direct sunlight. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Keep container tightly closed. 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 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. Avoid generating dusty conditions.
Disposal code
4
Stability
No data.
Incompatibilities
Strong oxidizing agents
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
163
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 chemical foam.

Health.
Poison_Class
4 (Substances and products that must be considered harmful)
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
The toxicological properties of this substance have not been fully investigated.
   Inhalation
The toxicological properties of this substance have not been fully investigated. Inhalation of dust may cause respiratory tract irritation.
   Skin
No information regarding skin irritation and other potential effects was found. Continued absorption may cause kidney irritation.
   Eyes
No information regarding eye irritation and other potential effects was found.

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 immediately.
   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.

Transport.
4. Organic acids
HS Code
2918 19 80