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HomeProduct name list2,5-Dimethyl-3-hexyne-2,5-diol

2,5-Dimethyl-3-hexyne-2,5-diol

Synonym(s):2,5-Dimethyl-3-hexyne-2,5-diol

  • CAS NO.:142-30-3
  • Empirical Formula: C8H14O2
  • Molecular Weight: 142.2
  • MDL number: MFCD00004468
  • EINECS: 205-533-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-01-19 13:48:20
2,5-Dimethyl-3-hexyne-2,5-diol Structural

What is 2,5-Dimethyl-3-hexyne-2,5-diol?

Description

2,5-Dimethyl-3-hexyne-2,5-diol is a white to yellowish powder or agglomerated alkyne compound commonly used in the manufacture of chemical products and preparations. It is used as a chemical intermediate in spices and peroxide catalysts, and as a drawing lubricant, defoamer, and coupling agent in resin coatings. In addition, it can also be applied as surfactant component and electroplating auxiliary.

Chemical properties

white to light yellow crystalline flakes or powder

The Uses of 2,5-Dimethyl-3-hexyne-2,5-diol

Ethoxylated acetylene-based diols are highly effective as surfactants and used in many applications.

Synthesis

2,5-Dimethyl-3-hexyne-2,5-diol is produced by addition of acetone to acetylene.

Properties of 2,5-Dimethyl-3-hexyne-2,5-diol

Melting point: 90-94 °C (lit.)
Boiling point: 121-123 °C/7 mmHg (lit.)
Density  0,949 g/cm3
vapor pressure  0.025 hPa (40.3 °C)
refractive index  1.4179 (estimate)
Flash point: 102°C
storage temp.  Store below +30°C.
solubility  240g/l
form  Crystalline Flakes or Powder
pka 12.91±0.29(Predicted)
color  White to light yellow
Water Solubility  240 g/L (20 ºC)
BRN  969835
CAS DataBase Reference 142-30-3(CAS DataBase Reference)
NIST Chemistry Reference 3-Hexyne-2,5-diol, 2,5-dimethyl-(142-30-3)
EPA Substance Registry System 3-Hexyne-2,5-diol, 2,5-dimethyl- (142-30-3)

Safety information for 2,5-Dimethyl-3-hexyne-2,5-diol

Signal word Danger
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
GHS Hazard Statements H317:Sensitisation, Skin
H334:Sensitisation, respiratory
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P272:Contaminated work clothing should not be allowed out of the workplace.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P321:Specific treatment (see … on this label).
P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention.
P342+P311:IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P501:Dispose of contents/container to..…

Computed Descriptors for 2,5-Dimethyl-3-hexyne-2,5-diol

InChIKey IHJUECRFYCQBMW-UHFFFAOYSA-N

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