Pentaerythritol

  • 2,2-bis(Hydroxymethyl)-1,3-propanediol
  • Methane tetramethylol
  • Monopentaerythritol
  • Tetrahydroxymethylolmethane
  • Tetramethylolmethane
Formula
C5H12O4
Structure
Description
Colorless to white crystalline, odorless powder.
Uses
Chemical intermediate for alkylated resins, synth lubricants, pentaerythritol tetranitrate & resin & tall oil esters.

Registry Numbers and Inventories.
CAS
115-77-5
EC (EINECS/ELINCS)
204-104-9
RTECS
RZ2490000
RTECS class
Other
Merck
12,7245
Beilstein/Gmelin
1679274
Beilstein Reference
4-01-00-02812
Swiss Giftliste 1
G-8076
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H12O4
Formula mass
136.15
Melting point, °C
47 - 49
Boiling point, °C
380
Vapor pressure, mmHg
2E-7 (25 C)
Density
1.511 g/cm3
Solubility in water
60 g/L
Refractive index
1.548 (20 C)
pKa/pKb
13.55 (pKa)
Partition coefficient, pKow
-1.69
Heat of fusion
5.3 kJ/mol
Heat of vaporization
72.7 kJ/mol
Heat of combustion
-2769 kJ/mol

Hazards and Protection.
Storage
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 contact with eyes, skin, and clothing. 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 clothing 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
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents - strong acids - acid chlorides - acid anhydrides - thiophosphoryl chloride.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
200
Autoignition, °C
490
Upper exp. limit, %
12.5
Lower exp. limit, %
1.6
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 spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Moderate fire hazard, from heat or flame; or oxidizers.

Health.
Exposure limit(s)
NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp) OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
Poison_Class
5
Exposure effects
   Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
May cause skin irritation.
   Eyes
May cause 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. 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. Get medical aid.

Transport.
USCG CHRIS Code
PET
 
HS Code
2905 42 00