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110-65-6 2-Butyne-1,4-diol C4H6O2
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Product Name: 2-Butyne-1,4-diol
Synonyms: 1,4-butinodiol;1,4-Dimethoxyacetylene;2-Butin-1,4-diol;2-butin-1,4-diol(czechoslovakia);2-Butine-1,4-diol;2-Butynediol;agrisynthb3d;Bis(hydroxymethyl)acetylene
CAS: 110-65-6
MF: C4H6O2
MW: 86.09
EINECS: 203-788-6
Product Categories: Pharmaceutical Intermediates;Acetylenes;Acetylenic Alcohols & Their Derivatives;Alkynes;Internal;Organic Building Blocks;Building Blocks;Chemical Synthesis;Organic Building Blocks
Mol File: 110-65-6.mol
2-Butyne-1,4-diol Structure
2-Butyne-1,4-diol Chemical Properties
mp 54 °C
bp 238 °C(lit.)
density 1.2
vapor pressure <0.1 mm Hg ( 55 °C)
refractive index 1.4804
Fp 306 °F
storage temp. Refrigerator
color slightly brown
Water Solubility 3740 g/L (20 ºC)
BRN 1071237
Stability: Stable. Highly flammable solid. Incompatible with strong oxidizing agents, acid chlorides, acid anhydrides, strong acids, strong bases.
CAS DataBase Reference 110-65-6(CAS DataBase Reference)
NIST Chemistry Reference 2-Butyne-1,4-diol(110-65-6)
EPA Substance Registry System 2-Butyne-1,4-diol(110-65-6)
Safety Information
Hazard Codes T,C
Risk Statements 21-23/25-34-43-48/22
Safety Statements 25-26-36/37/39-45-46
RIDADR UN 2716 6.1/PG 3
WGK Germany 2
RTECS ES0525000
F 23-10
HazardClass 6.1
PackingGroup III
HS Code 29053980
Hazardous Substances Data 110-65-6(Hazardous Substances Data)
MSDS Information
Provider Language
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2-Butyne-1,4-diol Usage And Synthesis
Chemical Properties yellow solid
Usage Basic brightener in nickel electroplating baths,also an important intermediate for organic synthesis
General Description White to light-brown solid or brownish-yellow aqueous solution. Solid sinks and mixes with water.
Air & Water Reactions Water soluble.
Reactivity Profile Pure 2-Butyne-1,4-diol is non-explosvie. Small amounts of certain impurities-alkali hydroxides, alkaline earth hydroxides, halides-may cause explosive decomposition upon distillation. 2-Butyne-1,4-diol should not be treated with basic catalysts in the absence of a solvent at room temperature, and its stability is less with elevated temperatures. In strong acids, contamination with mercury salts can also result in violent decomposition [NFPA 491M 1991].
Health Hazard May cause dermatitis.
2-Butyne-1,4-diol Preparation Products And Raw materials
Raw materials Formaldehyde-->Paraformaldehyde-->Calcium carbide-->Acetylene-->Propargyl alcohol
Preparation Products 3-FURANMETHANOL-->1,4-Butanediol-->ETHYL 3-FUROATE-->Propargyl alcohol-->3-Bromofuran-->2-Butene-1,4-diol-->1,2,4-Butanetriol-->Erythritol-->1,4-Dihydroxy-2-butanone-->BARBAN-->BE-strong efficient nickel plating brightener-->1,4-Bis(2-hydroxyethoxy)-2-butyne-->5-Oxa-2-octyne-1,7-diol
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