2-Methyl-1-propanol

$ 1.00 /1kg

Min. Order1kg
Purity99%
Cas No 78-83-1
Supply Ability100KG
Update time2019-07-06

career henan chemical co

7YR

China

Chemical Properties

Product Name	2-Methyl-1-propanol
CAS No	78-83-1
EC-No
Min. Order	1kg
Purity	99%
Supply Ability	100KG
Release date	2019/07/06

AD68

2-Methyl-1-propanol Basic information

Isobutanol Chemical properties Uses Production method Hazards & Safety Information

Product Name:	2-Methyl-1-propanol
Synonyms:	NATURAL ISO BUTYL ALCOHOL;2-METHYL-1-PROPANOL;2-Methyl propanol;2-METHYLPROPAN-1-OL;FEMA 2179;ISOBUTANOL;ISOBUTANOL, 2-METHYL-1-PROPANOL;ISOBUTYL ALCOHOL
CAS:	78-83-1
MF:	C4H10O
MW:	74.12
EINECS:	201-148-0
Product Categories:	Analytical Reagents;Analytical Reagents for General Use;Analytical/Chromatography;M-N;Plastic Bottles;Puriss p.a. ACS;Solvent Bottles;Solvent Packaging Options;Solvents;Amber Glass Bottles;CHROMASOLV for HPLC;Chromatography Reagents &;HPLC &;HPLC Grade Solvents (CHROMASOLV);HPLC/UHPLC Solvents (CHROMASOLV);Solvent by Application;UHPLC Solvents (CHROMASOLV);ACS and Reagent Grade Solvents;ACS Grade;ACS Grade Solvents;Carbon Steel Flex-Spout Cans;Semi-Bulk Solvents
Mol File:	78-83-1.mol

2-Methyl-1-propanol Chemical Properties

Melting point	−108 °C(lit.)
Boiling point	108 °C(lit.)
density	0.803 g/mL at 25 °C(lit.)
vapor density	2.55 (vs air)
vapor pressure	8 mm Hg ( 20 °C)
refractive index	n20/D 1.396(lit.)
FEMA	2179 \| ISOBUTYL ALCOHOL
Fp	82 °F
storage temp.	Flammables area
solubility	water: miscible70g/L at 20°C
form	Solid
color	APHA: ≤10
Relative polarity	0.552
PH	7 (80g/l, H2O, 20℃)
explosive limit	1.5-12%(V)
Water Solubility	95 g/L (20 ºC)
Merck	14,5131
BRN	1730878
Stability:	Stable. Flammable. Incompatible with strong oxidizing agents, aluminium.
CAS DataBase Reference	78-83-1(CAS DataBase Reference)
NIST Chemistry Reference	1-Propanol, 2-methyl-(78-83-1)
EPA Substance Registry System	1-Propanol, 2-methyl-(78-83-1)

Safety Information

Hazard Codes	Xi
Risk Statements	10-37/38-41-67
Safety Statements	13-26-37/39-46-7/9
RIDADR	UN 1212 3/PG 3
WGK Germany	1
RTECS	NP9625000
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29051990
Hazardous Substances Data	78-83-1(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 2.46 g/kg (Smyth)

MSDS Information

Provider	Language
ACROS	English
SigmaAldrich	English
ALFA	English

2-Methyl-1-propanol Usage And Synthesis

Isobutanol	Isobutanol, also known as isopropyl alcohol, 2-methyl propanol is a colorless alcohol flammable liquid. Isobutanol is one of the main ingredients of fresh tea leaves, black tea and green tea to produce the wonderful aroma with the molecular weight of 74.12, boiling point of 107.66 ℃, relative density of 0.8016 (20/4 ℃), refractive index of 1.3959 and a flash point of 37 ℃. Isobutanol is fully dissolved in alcohol and ether, slightly soluble in water. Its vapor can form an explosive mixture with air; the explosion limit is 2.4% (volume). It can form addition compounds (CaCl2 • 3C4H10O) with calcium chloride. Isobutanol can be obtained by the distillation of the by-product of methanol and can also be derived from distillation of crude fusel oil. Using Industrial carbonyl cobalt as a catalyst, making propylene and carbon monoxide and hydrogen mixture react at 110~140 ° C, 2.0265 × 107~3.0397 × 107Pa to generate butyraldehyde and isobutyraldehyde, and then via catalytic hydrogenation, separation can obtain isobutanol. Isobutanol is used in the manufacture of petroleum additives, antioxidants, plasticizers, synthetic rubber, artificial musk, fruit oil and synthetic drugs and also used as solvents and chemical reagents.
Chemical properties	It is a kind of colorless transparent liquid with a special smell, soluble in water, and fully dissolved in ethanol and ether.
Uses	(1) For analysis reagents, chromatography reagents, solvents and extraction agent. (2) As raw materials for the organic synthesis, and also act as a superior solvent. (3) Isobutanol is raw materials for organic synthesis. It mainly used in the synthesis of isobutyronitrile, an intermediate for diazinon. (4) As raw materials of organic synthesis, isobutanol is used in the manufacture of petroleum additives, antioxidants, 2, 6-butylated hydroxytoluene, isobutyl acetate (paint solvents), plasticizers, synthetic rubber, artificial musk, fruit oil and synthetic drugs. It can also be used to purify strontium, barium and lithium salts and other chemical reagents and used as a superior solvent. (5) Extraction solvent. Food flavors listed in GB 2760-96.
Production method	(1) In the presence of sodium amalgam or other catalysts, it is derived from the reduction of butyraldehyde；r it is derived from the distillation of the by-product obtained from the synthesis of methanol. (2) 1. Carbonyl synthesis (by-product of butanol production from propylene) : using propylene and synthesis gas as raw material, going through carbonyl synthesis in the system to get n-butyl and isobutyl aldehyde, after the catalyst, hydrogenating into alcohol, then undergoing dehydration and separation can obtain the product of n-butyl and isobutyl alcohol respectively. 2. Hydrogenation of isobutyraldehyde: isobutyraldehyde via the liquid hydrogenation reaction, obtained isobutanol in the catalytic nickel. 3. Recycle from isobutyl oil, a byproduct of synthetic methanol distillation: isobutanol is obtained by dehydration of methanol, salting out and then azeotropic distillation of isobutyl oil. (3) The preparation method is using synthesis gas and propylene as raw materials, obtaining isobutyraldehyde during the carbonyl synthesis of 2-ethylhexyl alcohol, and then by hydrogenation to acquire isobutanol.
Hazards & Safety Information	Category: Flammable liquids Toxic classification: Moderately hazardous Acute toxicity: Oral-Rat LD50: 2460 mg/kg; Abdominal-Mouse LD50: 1801 mg/kg Stimulation data: Eye-Rabbit 2 mg Severity Explosives hazardous characteristics: To be explosive when mix with air. Flammability hazard characteristics: Flammable in case of fire, high temperature, oxidant; stimulating the smoke when combustion. Storage and transportation characteristics: Ventilation and low-temperature drying in treasury; oxidants and acids stored separately. Extinguishing agent: Dry powder, dry sand, carbon dioxide, foam. Occupational Standard: TWA 50 PPM.
Chemical Properties	colourless oily liquid
Uses	Isobutyl Alcohol is a reagent used in organic reactions. It is used in the synthesis of new fluorinating reagents. It is also used in the lipase-catalyzed production of biodiesel as an energy source.
Definition	ChEBI: An alkyl alcohol that is propan-1-ol substituted by a methyl group at position 2.
Uses	manufacture of esters for fruit flavoring essences; solvent in paint, varnish removers.
General Description	A clear colorless liquid with a sweet odor. Flash point 85 - 100°F. Less dense than water. Vapors heavier than air.
Air & Water Reactions	Highly flammable. Soluble in water.
Reactivity Profile	2-Methyl-1-propanol is an alcohol. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. 2-Methyl-1-propanol is incompatible with strong oxidizers.
Hazard	Flammable, moderate fire risk. Strong irritant.
Health Hazard	Contact with eyes is extremely irritating and may cause burns. Breathing vapors will be irritating to the nose and throat. In high concentrations, may cause nausea, dizziness, headache, and stupor.
Fire Hazard	HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Purification Methods	Isobutanol is dried by refluxing with CaO and BaO for several hours, followed by treatment with calcium or aluminium amalgam, then fractional distilling it from sulfanilic or tartaric acids. More exhaustive purifications involve formation of phthalate or borate esters. Heating it with phthalic anhydride gives the acid phthalate which, after crystallisation to constant melting point (m 65o) from pet ether, is hydrolysed with aqueous 15% KOH. The alcohol is distilled off as the water azeotrope and dried (K2CO3, then anhydrous CuSO4), and finally magnesium turnings, followed by fractional distillation. [Hückel & Ackermann J Prakt Chem 136 15 1933.] The borate ester is formed by heating the dried alcohol for 6hours in an autoclave at 160-175o with a quarter of its weight of boric acid. After fractional distillation under vacuum, the ester is hydrolysed by heating for a short time with aqueous alkali and the alcohol is dried with CaO and distilled. [Michael et al. J Am Chem Soc 38 653 1916.] Alternatively dry the alcohol with K2CO3, CaSO4 or CaCl2, filter and fractionally distil it. For further drying, the redistilled alcohol can be refluxed with the appropriate alkyl phthalate or succinate as described under ethanol. [Beilstein 1 IV 1588.]