Tetrahydrofuran

Melting point :-108°C
Boiling point :66 °C
Density :0.887 g/mL at 20 °C
vapor density :2.5 (vs air)
vapor pressure :<0.01 mm Hg ( 25 °C)
refractive index :n20/D 1.465
Flash point :>230 °F
storage temp. :Store at +5°C to +30°C.
solubility :water: soluble
form :Liquid
Specific Gravity :0.89
color :<10(APHA)
Odor :Ethereal, detectable at 2 to 50 ppm
PH :7-8 (200g/l, H2O, 20℃)
PH Range :7
Relative polarity :0.207
explosive limit :1.5-12.4%(V)
Water Solubility :miscible
Thermal Conductivity :0.145 W/(m·K) at 25 ℃
FreezingPoint :-108℃
λmax :λ: 245 nm Amax: ≤0.26
λ: 275 nm Amax: ≤0.046
λ: 315 μm Amax: ≤0.0044 Sensitive :Air Sensitive & Hygroscopic
Merck :14,9211
BRN :102391
Henry's Law Constant :1.54 (static headspace-GC, Welke et al., 1998)
Exposure limits :TLV-TWA 200 ppm (590 mg/m³) (ACGIH, MSHA, and OSHA); STEL 250 ppm (ACGIH); IDLH 20,000 ppm (NIOSH).
Dielectric constant :11.6（-70℃）
Stability :Stable. Incompatible with halogens, strong oxidizing agents, strong reducing agents, strong bases, oxygen. May generate explosive peroxides in storage if in contact with air. Highly flammable. Store at room temperature under nitrogen. Hazardous polymerisation may occur. Light sensitive. May contain 2,6-di-tertbutyl-4-methylphenol (BHT) as a stabilizer.
InChI :1S/C4H8O/c1-2-4-5-3-1/h1-4H2
InChIKey :WYURNTSHIVDZCO-UHFFFAOYSA-N
SMILES :C1CCOC1
LogP :0.45 at 25℃
Surface tension :27.31mN/m at 293.15K
CAS DataBase Reference :109-99-9(CAS DataBase Reference)
NIST Chemistry Reference :Furan, tetrahydro-(109-99-9)
IARC :2B (Vol. 119) 2019
EPA Substance Registry System :Tetrahydrofuran (109-99-9)
Absorption :≤0.0044 at 315nm
≤0.005 at 350nm
≤0.005 at 400nm
≤0.02 at 300nm
≤0.046 at 275nm
≤0.18 at 250nm
≤0.26 at 245nm
≤1.0 at 212nm

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 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 H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H371 May cause damage to organs Specific target organ toxicity, single exposure Category 2 Warning P260, P264, P270, P309+P311, P405,P501 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501
Precautionary statements:	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting/…/equipment. P242 Use only non-sparking tools. P243 Take precautionary measures against static discharge. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P337+P313 IF eye irritation persists: Get medical advice/attention. P370+P378 In case of fire: Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P403+P235 Store in a well-ventilated place. Keep cool. P405 Store locked up. P501 Dispose of contents/container to..…