- 2-Methyl-1-butanol
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- $1.50 / 1g
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2023-07-27
- CAS:137-32-6
- Min. Order: 1g
- Purity: 99.0% Min
- Supply Ability: 100 Tons
- 2-Methyl-1-butanol
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- $0.00 / 25KG
-
2023-06-30
- CAS:137-32-6
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 50000KG/month
- 2-Methyl-1-butanol
-
- $10.00 / 1KG
-
2023-01-31
- CAS:137-32-6
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 10 mt
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| | 2-Methyl-1-butanol Basic information |
| | 2-Methyl-1-butanol Chemical Properties |
| Melting point | −70 °C(lit.) | | Boiling point | 130 °C mm Hg(lit.) | | alpha | -0.1～+0.1°(20℃/D)(neat) | | density | 0.819 g/mL at 20 °C(lit.) | | vapor density | 3 (vs air) | | vapor pressure | 3 mm Hg ( 20 °C) | | FEMA | 3998 | (+/-)-2-METHYL-1-BUTANOL | | refractive index | n20/D 1.411 | | Fp | 110 °F | | storage temp. | Store below +30°C. | | solubility | water: slightly soluble3.6g/a00g at 30°C | | form | Liquid | | pka | 15.24±0.10(Predicted) | | color | Clear colorless to very slightly yellow | | PH | 7 (H2O) | | Odor | at 100.00 %. ethereal fusel alcoholic fatty greasy winey whiskey leathery cocoa | | Odor Type | ethereal | | explosive limit | 1.2-10.3%(V) | | Water Solubility | 3.6 g/100 mL (30 ºC) | | Merck | 14,6030 | | JECFA Number | 1199 | | BRN | 1718810 | | LogP | 1.22 | | CAS DataBase Reference | 137-32-6(CAS DataBase Reference) | | NIST Chemistry Reference | 1-Butanol, 2-methyl-(137-32-6) | | EPA Substance Registry System | 2-Methyl-1-butanol (137-32-6) |
| Hazard Codes | Xn | | Risk Statements | 10-20-37-66 | | Safety Statements | 46-24/25 | | RIDADR | UN 1105 3/PG 3 | | WGK Germany | 3 | | RTECS | EL5250000 | | Autoignition Temperature | 725 °F | | TSCA | Yes | | HazardClass | 3 | | PackingGroup | III | | HS Code | 29051500 | | Hazardous Substances Data | 137-32-6(Hazardous Substances Data) | | Toxicity | LD50 orally in Rabbit: 4170 mg/kg LD50 dermal Rabbit 2900 mg/kg |
| | 2-Methyl-1-butanol Usage And Synthesis |
| Chemical Properties | Amyl alcohols (pentanols) have eight isomers.
All are flammable, colorless liquids, except the isomer 2,2-
dimethyl-1-propanol, which is a crystalline solid. | | Chemical Properties | clear colorless to very slighlty yellow liquid | | Chemical Properties | (+/–)2-Methyl-1-butanol has a cooked, roasted aroma with fruity or alcoholic undernotes. | | Occurrence | Reportedly present in over 120 natural food products, including apple, apricot, banana, orange, bilberry, black
currant, cranberry, papaya, strawberry, tomato and alcoholic beverages | | Uses | 2-Methyl-1-butanol is a whiskey-scented amyl alcohol that is naturally present in all fruits wine and beer. 2-Methyl-1-butanol is commercially used as a solvent in paints and oils and as flavorant in many processed foods. 2-Methyl-1-butanol has a characteristic redolence, which is thought to account for its active properties as an attractant for hornets and certain wasps, such as yellowjackets, in traps. As a biochemical active ingredient, it has a non-toxic mode of action – targeted pests are killed through physical entrapment. | | Uses | 2-Methyl-1-butanol is a volatile metabolite produced by a number of different plant species. Used as a solvent in organic synthesis (introduction of active amyl group), in lubricants, plasticizers, additives for oils & paints. It is also employed as a perfuming agent. | | Uses | Solvent, organic synthesis (introduction of
active amyl group), lubricants, plasticizers, additives for oils and paints. | | Definition | The
active alcohol from fusel oil. The synthetic product
is a racemic mixture of both dextroand levorotatory compounds and therefore not optically active. | | Production Methods | 2-methyl-1-butanol are refined from ethanol production as
fusel oil. Isoamyl alcohols are used as solvents
for oils, fats, resins, and waxes; in the plastics industry in
spinning polyacrylonitrile; and in manufacturing lacquers,
chemicals, and pharmaceuticals. | | Preparation | Prepared from hydroboration of 2-methyl-1-butene. (–)2-Methyl-1-butanol is isolated by fractional distillation of
fusel oil | | Aroma threshold values | Odor threshold in air: detection at 0.14 mg/m3; recognition at 0.83 to 1.7 mg/m3. | | General Description | S-(-)-2-Methyl-1-butanol is a precursor for the synthesis of chiral liquid crystals. It is a potential new-biofuel. | | Hazard | Moderate fire and explosion risk. Toxic by
ingestion, inhalation, and skin absorption. | | Flammability and Explosibility | Flammable | | Safety Profile | Moderately toxic by
skin contact and intraperitoneal routes.
Mddly toxic by ingestion. An eye, skin, and
mucous membrane irritant. Can cause
deafness, delirium, headache, nausea, and
vomiting. Flammable liquid when exposed
to heat, flame, or oxidizers. Explosive in the
form of vapor when exposed to heat or
flame. Incompatible with H2S3. To fight fire,
use alcohol foam, spray, mist, dry chemical.
When heated to decomposition it emits
acrid smoke and irritating fumes. See also
ALCOHOLS. | | Potential Exposure | (n-isomer); Suspected reprotoxic hazard,
Primary irritant (w/o allergic reaction), (iso-, primary):
Possible risk of forming tumors, Primary irritant (w/o allergic
reaction), (sec-, active primary-, and other isomers)
Primary irritant (w/o allergic reaction). Used as a solvent in
organic synthesis and synthetic flavoring, pharmaceuticals,
corrosion inhibitors; making plastics and other chemicals;
as a flotation agent. The (n-isomer) is used in preparation
of oil additives, plasticizers, synthetic lubricants, and as a
solvent. | | Shipping | UN2811 Pentanols, Hazard Class: 3; Labels: 3-
Flammable liquid. UN1987 Alcohols, n.o.s., Hazard Class:
3; Labels: 3-Flammable liquid. | | Purification Methods | Reflux the butanol with CaO, distil, reflux with magnesium and again fractionally distil it. A small sample of highly purified material is obtained by fractional crystallisation after conversion into a suitable ester such as the trinitrophthalate or the 3-nitrophthalate. The latter is converted to the cinchonine salt in acetone and recrystallised from CHCl3 by adding pentane. The salt is saponified, extracted with ether, and fractionally distilled. [Terry et al. J Chem Eng Data 5 403 1960, Beilstein 1 IV 1666.] | | Incompatibilities | Forms an explosive mixture with air.
Contact with strong oxidizers and hydrogen trisulfide may
cause fire and explosions. Incompatible with strong acids.
Violent reaction with alkaline earth metals forming hydrogen,
a flammable gas. | | Waste Disposal | Dissolve or mix the material
with a combustible solvent and burn in a chemical incinerator
equipped with an afterburner and scrubber. All federal,
state, and local environmental regulations must be
observed. |
| | 2-Methyl-1-butanol Preparation Products And Raw materials |
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