Melting point :253-258 °C (lit.)
Boiling point :276 °C/30 mmHg (lit.)
Density :1.396
vapor pressure :<1 mm Hg ( 20 °C)
refractive index :1.548
Flash point :240 °C
storage temp. :Store below +30°C.
solubility :H₂O: 0.1 g/mL, clear, colorless
pka :13.55±0.10(Predicted)
form :Crystals
color :White
PH :3.5-4.5 (100g/l, H2O, 35℃)
Odor :odorless
Water Solubility :1 g/18 mL (15 ºC)
Sensitive :Hygroscopic
Merck :14,7111
BRN :1679274
Exposure limits :ACGIH: TWA 10 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: TWA 10 mg/m3; TWA 5 mg/m3 Stability :Stable. Incompatible with strong acids, strong oxidizing agents, acid chlorides, acid anhydrides. Combustible.
InChIKey :WXZMFSXDPGVJKK-UHFFFAOYSA-N
LogP :-1.7 at 22℃
CAS DataBase Reference :115-77-5(CAS DataBase Reference)
NIST Chemistry Reference :1,3-Propanediol, 2,2-bis(hydroxymethyl)-(115-77-5)
EPA Substance Registry System :Pentaerythritol (115-77-5)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.