A1265312
2-Butanol , 99% , 78-92-2
Synonym(s):
sec-Butyl alcohol;2-Butanol;sec-Butyl alcohol
CAS NO.：78-92-2
Empirical Formula: C4H10O
Molecular Weight: 74.12
MDL number: MFCD00004569
EINECS: 201-158-5
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | −115 °C(lit.) |
| Boiling point: | 98 °C(lit.) |
| Density | 0.808 g/mL at 25 °C(lit.) |
| vapor density | 2.6 (vs air) |
| vapor pressure | 12.5 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 80 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | 125g/l |
| form | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| color | Colorless |
| Relative polarity | 0.506 |
| Odor | Strong, pleasant. |
| PH Range | 7 |
| Odor Type | fruity |
| Odor Threshold | 0.22ppm |
| explosive limit | 1.4-9.8%(V) |
| Water Solubility | 12.5 g/100 mL (20 ºc) |
| Sensitive | Hygroscopic |
| Merck | 14,1541 |
| BRN | 1718765 |
| Henry's Law Constant | 1.19 (static headspace-GC, Merk and Riederer, 1997) |
| Exposure limits | TLV-TWA 450 mg/m3 (150 ppm) (NIOSH),
305 mg/m3 (100 ppm) (ACGIH); IDLH
10,000 ppm. |
| Dielectric constant | 15.8（25℃） |
| Stability: | Stable. Flammable. Substances to be avoided include acids, acid chlorides, acid anhydrides, oxidizing agents and halogens. |
| InChIKey | BTANRVKWQNVYAZ-UHFFFAOYSA-N |
| LogP | 0.610 |
| CAS DataBase Reference | 78-92-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butanol(78-92-2) |
| EPA Substance Registry System | 2-Butanol (78-92-2) |
Description and Uses
2-Butanol is used in the production of methylethyl ketone and sec-butyl acetate, as asolvent in lacquers and alkyd enamels, in inhydraulic brake fluids, in cleaning compounds, and its xanthate derivatives in oreflotation. In addition, it is used to polish, clean materials, paint removers, fruit essences, perfumes, and dyestuffs.
Safety
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Warning |
| Hazard statements | H226-H319-H335-H336 |
| Precautionary statements | P210-P233-P240-P241-P242-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | 10-36/37-67 |
| Safety Statements | 13-24/25-26-46-7/9 |
| OEB | A |
| OEL | TWA: 100 ppm (305 mg/m3), STEL: 150 ppm (455 mg/m3) |
| RIDADR | UN 1120 3/PG 3 |
| WGK Germany | 1 |
| RTECS | EO1750000 |
| Autoignition Temperature | 761 °F |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29051490 |
| Hazardous Substances Data | 78-92-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 6480 mg/kg LD50 dermal Rat > 2000 mg/kg |
| IDLA | 2,000 ppm |
