A6757412
n-Pentane , Waterless grade, ≥99% , 109-66-0
Synonym(s):
acs solvents;high purity solvents;Pentane
CAS NO.：109-66-0
Empirical Formula: C5H12
Molecular Weight: 72.15
MDL number: MFCD00009498
EINECS: 203-692-4
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -130 °C |
| Boiling point: | 36 °C |
| Density | 0.626 g/mL at 25 °C(lit.) |
| vapor density | 2.48 (vs air) |
| vapor pressure | 26.98 psi ( 55 °C) |
| refractive index | n |
| Flash point: | −57 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | ethanol: soluble(lit.) |
| form | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| color | Colorless |
| Specific Gravity | 0.63 |
| Relative polarity | 0.009 |
| Odor | Like a gasoline. |
| Odor Threshold | 1.4ppm |
| explosive limit | 1.4-8%(V) |
| Water Solubility | insoluble |
| λmax | λ: 200 nm Amax: ≤0.70 λ: 210 nm Amax: ≤0.20 λ: 220 nm Amax: ≤0.07 λ: 230 nm Amax: ≤0.02 λ: 250 nm Amax: ≤0.004 |
| Merck | 14,7116 |
| BRN | 969132 |
| Henry's Law Constant | 1.20 at 25 °C (J?nsson et al., 1982) |
| Exposure limits | TLV-TWA 600 ppm (～1800 mg/m3)
(ACGIH), 1000 ppm (～3000 mg/m3)
(OSHA), 500 ppm (～1500 mg/m3) (MSHA);
STEL 750 ppm (～2250 mg/m3) (ACGIH). |
| Dielectric constant | 1.8（20℃） |
| InChIKey | OFBQJSOFQDEBGM-UHFFFAOYSA-N |
| LogP | 3.390 |
Description and Uses
Fuel; solvent; chemical synthesis
Safety
| Symbol(GHS) |     GHS02,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H225-H304-H336-H411 |
| Precautionary statements | P210-P273-P301+P310+P331 |
| Hazard Codes | F+,Xn,N,F |
| Risk Statements | 12-51/53-65-66-67 |
| Safety Statements | 9-16-29-33-61-62 |
| RIDADR | UN 1265 3/PG 2 |
| OEB | A |
| OEL | TWA: 120 ppm (350 mg/m3), Ceiling: 610 ppm (1800 mg/m3) [15-minute] |
| WGK Germany | 2 |
| RTECS | RZ9450000 |
| F | 3-10 |
| Autoignition Temperature | 500 °F |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29011090 |
| Toxicity | LC (in air) in mice: 377 mg/l (Fühner) |
| IDLA | 1,500 ppm [10% LEL] |
