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: 2025-01-27 09:38:02
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) |
 Exclamation Mark Irritant GHS07  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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