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1,4-BUTANEDIOL

1,4-Butylene glycol; 1,4-Tetramethylene glycol; Tetramethylene glycol; 1,4-Dihydroxybutane; Butane-1,4-diol; Butanediol; 1,4-BD; Tetramethylene-1,4-dio

CAS NO:

110-63-4

  • Türü                :
  • Formülü          : HO(CH2)4OH
  • EINECS NO.  : 203-786-5
  • Mol Agırlığı    : 90.12
  • H.S. CODE     : 29053.90
  • Zehililik          :
  • Türevleri        :
  • Kütlesi           :
  • Ekleyen          : Kimyahane Editr

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE clear viscous liquid
MELTING POINT 19 - 20 C
BOILING POINT 228 - 230 C
SPECIFIC GRAVITY 1.017
SOLUBILITY IN WATER Soluble
pH  

VAPOR DENSITY

3.1
AUTOIGNITION  
NFPA RATINGS Health: 1; Flammability: 1; Reactivity: 0

REFRACTIVE INDEX

 

FLASH POINT

121 C

STABILITY

Stable under ordinary conditions

APPLICATIONS

 

Alcohols are very weak acids as they loseH+ in the hydroxyl group. Alcohols undergoes dehydration reaction which means the elimination of water molecule replaced by a pi bond between two adjacent carbon atoms to form alkenes under heating in the presence of strong acids like hydrocloric acid or phosphoric acid. Primary and secondary alcohols can be oxidized to aldehydes and ketones respectively. Carboxylic acids are obtained from oxidation of aldehydes. Oxidation in organic chemistry can be considered to be the loss of hydrogen or gain of oxygen and reduction to gain hydrogen or loss of oxygen. Tertiary alcohols do not react to give oxidation products as they have no H attached to the alcohol carbon. Alcohols undergoes important reactions called nucleophilic substitution in which an electron donor replaces a leaving group, generally conjugate bases of strong acids, as a covalent substitute of some atom. One of important reaction of alcohol is condensation. Ethers are formed by the condensation of two alcohols by heating with sulfuric acid; the reaction is one of dehydration. Almost infinite esters are formed through condensation reaction called esterification between carboxylic acid and alcohol, which produces water. Alcohols are important solvents and chemical raw materials. Alcohols are intermediates for the production of target compounds, such as pharmaceuticals, veterinary medicines, plasticizers, surfactants, lubricants, ore floatation agents, pesticides, hydraulic fluids, and detergents.
1,4-Butanediol is produced based on the method of reacting acetylene with formaldehyde (Reppe process). Lyondell's feedstock is propylene oxide. Most end use applications, such as spandex fibers and engineering plastics, are maturing. But as the industry shifts from the acetylene-based Reppe process to cheaper routes based on propylene, butadiene or butane, better process economics should improve operating margins, they are still growing faster. 1,4-Butanediol is used in as a solvent and in coatings. It is used as a raw material to produce tetrahydrofuran (THF), polybutylene terephthalate (PBT) resins, gamma-butyrolactone (GBL), polyurethanes and other target compounds and pharmaceuticals

SALES SPECIFICATION  

APPEARANCE

clear viscous liquid

PURITY

99.5% min

MELTING POINT

19 - 20 C

PEROXIDE CONTENT

20ppm max

COLOR, APHA

10 max

WATER

0.05% max

TRANSPORTATION  
PACKING 200kgs in Drum
HAZARD CLASS  
UN NO.  
OTHER INFORMATION  
Hazard Symbols: XN N, Risk Phrases: 22, Safety Phrases: 24/25

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