ChemicalBook Product Catalog Organic Chemistry Alcohols,Phenols,Phenol alcohols Alcohol derivatives 3-Methyl butynol

3-Methyl butynol

3-Methyl butynol Basic information
Product Name:3-Methyl butynol
Synonyms:3-HYDROXY-3-METHYL-1-BUTYNE;2-METHYL-3-BUTYNE-2-0L;DIMETHYL ETHYNYL CARBINOL;2-METHYL-3-BUTYN-2-OL 98%;3-Methyl-1-butyn-3-ol (=2-Methyl-3-butyn-2-ol);2-Methylbutynol;2-methylbut-3-in-2-ol;1,1-Dimethyl-2-propynol
CAS:115-19-5
MF:C5H8O
MW:84.12
EINECS:204-070-5
Product Categories:Chemistry;Acetylenes;Acetylenic Alcohols & Their Derivatives;Alkynes;Building Blocks;Chemical Synthesis;Organic Building Blocks;Terminal;bc0001
Mol File:115-19-5.mol
3-Methyl butynol Structure
3-Methyl butynol Chemical Properties
Melting point 3 °C
Boiling point 104 °C(lit.)
density 0.868 g/mL at 25 °C(lit.)
vapor pressure 15 mm Hg ( 20 °C)
refractive index n20/D 1.42(lit.)
Fp 77 °F
storage temp. Store below +30°C.
solubility Fully miscible.
form Powder or Crystals
pka13.34±0.29(Predicted)
color White to yellow-beige to brown
PH7 (H2O, 20℃)
explosive limit1.8-16%(V)
Water Solubility miscible
Merck 14,6034
BRN 635746
Stability:Stable. Flammable. Incompatible with strong oxidizing agents.
LogP0.318 at 20-25℃
CAS DataBase Reference115-19-5(CAS DataBase Reference)
NIST Chemistry Reference3-Butyn-2-ol, 2-methyl-(115-19-5)
EPA Substance Registry System2-Methyl-3-butyn-2-ol (115-19-5)
Safety Information
Hazard Codes Xn
Risk Statements 10-22-41
Safety Statements 26-39-16
RIDADR UN 1987 3/PG 2
WGK Germany 1
RTECS ES0810000
Autoignition Temperature662 °F
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29052990
ToxicityLD50 orally in Rabbit: 1420 mg/kg LD50 dermal Rat > 2000 mg/kg
MSDS Information
ProviderLanguage
2-Methylbut-3-yn-2-ol English
SigmaAldrich English
ACROS English
ALFA English
3-Methyl butynol Usage And Synthesis
Chemical Propertiescolourless to light yellow liquid
Uses2-Methyl-3-butyn-2-ol is used as an intermediate in the manufacture of products for the agrochemical and specialty chemical industry.
UsesStabilizer in chlorinated solvents, viscosity reducer and stabilizer, electroplating brightener, intermediate.
General DescriptionColorless to straw yellow liquid.
Air & Water ReactionsHighly flammable.
Reactivity Profile3-Methyl butynol 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.
HazardFlammable, dangerous fire risk.
Health HazardContact will cause eye and skin irritation. Vapor exposure may cause eye and respiratory tract irritation.
Fire HazardSpecial Hazards of Combustion Products: Irritating and toxic gases, such as carbon dioxide and carbon monoxide, may be produced in fire.
Flammability and ExplosibilityHighlyflammable
3,5-DIMETHYL-1-HEXYN-3-OL 4-(2-CHLORO-4-NITROPHENYL)-2-METHYL-3-BUTYN-2-OL 2-Methyl-3-butyn-1-ol Methyl 4,4''[2,5-BIS(UNDECYLOXY)-1,4-PHENYLENE]BIS[2-METHYL-3-BUTYN-2-OL] 2,7-DIMETHYL-3,5-OCTADIYN-2,7-DIOL 1-(4-METHYLPHENYL)-3-HYDROXY-3-METHYL-1-BUTYNE 4,4''[2,5-BIS(HEXYLOXY)-1,4-PHENYLENE]BIS[2-METHYL-3-BUTYN-2-OL] 3-Methyl-1-pentyn-3-ol 1,1,3-Triphenylpropargyl alcohol 4-Chloro-2-methyl-3-butyn-2-ol 4-PHENYL-2-METHYL-3-BUTYN-2-OL 4-(3,4-DIFLUOROPHENYL)-2-METHYL-3-BUTYN-2-OL 4-(3-FLUOROPHENYL)-2-METHYL-3-BUTYN-2-OL 1-Methyl-2-butyn-1-ol 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether 3-Butyn-2-ol 4-(3-BROMOPHENYL)-2-METHYL-3-BUTYN-2-OL
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