n-Butanol , >99.5%(GC) , 71-36-3
Synonym(s):
1-Butanol;Butyl alcohol;Degassed and low oxygen 1-butanol;1-Butanol ZerO2;Butan-1-ol, n-Butyl alcohol, BuOH
CAS NO.：71-36-3
Empirical Formula: C4H10O
Molecular Weight: 74.12
MDL number: MFCD00002964
EINECS: 200-751-6
PRODUCT Properties
| Melting point: | -90 °C (lit.) |
| Boiling point: | 116-118 °C (lit.) |
| Density | 0.81 g/mL at 25 °C (lit.) |
| vapor density | 2.55 (vs air) |
| vapor pressure | 6.7 hPa (20 °C) |
| refractive index | n |
| FEMA | 2178 | BUTYL ALCOHOL |
| Flash point: | 95 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | water: soluble |
| form | Liquid |
| pka | 15.24±0.10(Predicted) |
| color | APHA: ≤10 |
| Relative polarity | 0.586 |
| PH | 7 (70g/l, H2O, 20℃) |
| Odor | Alcohol-like; pungent; strong; characteristic; mildly alcoholic, non residual. |
| Odor Threshold | 0.038ppm |
| explosive limit | 1.4-11.3%(V) |
| Odor Type | fermented |
| Water Solubility | 80 g/L (20 ºC) |
| Sensitive | Moisture Sensitive |
| λmax | λ: 215 nm Amax: 1.00 λ: 220 nm Amax: 0.50 λ: 240 nm Amax: 0.10 λ: 260 nm Amax: 0.04 λ: 280-400 nm Amax: 0.01 |
| JECFA Number | 85 |
| Merck | 14,1540 |
| BRN | 969148 |
| Henry's Law Constant | 49.2 at 50 °C, 92.0 at 60 °C, 152 at 70 °C, 243 at 80 °C (headspace-GC, Hovorka et al., 2002) |
| Exposure limits | TLV-TWA 300 mg/m3 (100 ppm) (NIOSH),
150 mg/m3 (50 ppm) (ACGIH); IDLH 8000
ppm (NIOSH). |
| Dielectric constant | 17.1（25℃） |
| Stability: | Stable. Incompatible with strong acids, strong oxidizing agents, aluminium, acid chlorides, acid anhydrides, copper, copper alloys. Flammable. |
| LogP | 0.88 |
Description and Uses
n-Butyl alcohol is a colourless flammable liquid with strong alcoholic odour. n-Butyl alcohol is a highly refractive liquid and burns with a strongly luminous flame. It is incompatible with strong acids, strong oxidising agents, aluminium, acid chlorides, acid anhydrides, copper, and copper alloys. n-Butyl alcohol has an extensive use in a large number of industries. For instance, it is used as solvent in industries associated with the manufacturing of paints, varnishes, synthetic resins, gums, pharmaceuticals, vegetable oils, dyes, and alkaloids. n-Butyl alcohol finds its use in the manufacture of artificial leather, rubber, plastic cements, shellac, raincoats, perfumes, and photographic films.
As solvent for fats, waxes, resins, shellac, varnish, gums etc.; manufacture of lacquers, rayon, detergents, other butyl Compounds; in microscopy for preparing paraffin imbedding materials.
Safety
| Symbol(GHS) |    GHS02,GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H226-H302-H315-H318-H335-H336 |
| Precautionary statements | P210-P233-P280-P301+P312-P303+P361+P353-P305+P351+P338 |
| Hazard Codes | Xn,T,F |
| Risk Statements | 10-22-37/38-41-67-39/23/24/25-23/24/25-11 |
| Safety Statements | 13-26-37/39-46-7/9-45-36/37-16-7 |
| RIDADR | UN 1120 3/PG 3 |
| OEL | Ceiling: 50 ppm (150 mg/m3) [skin] |
| WGK Germany | 1 |
| RTECS | EO1400000 |
| Autoignition Temperature | 649 °F |
| TSCA | Yes |
| HS Code | 2905 13 00 |
| HazardClass | 3 |
| PackingGroup | III |
| Toxicity | LD50 orally in rats: 4.36 g/kg (Smyth) |
| IDLA | 1,400 ppm |
