2, 5-Hexynedion with the CAS number 3031-66-1 under the brand name Malpanol NHD. We manufacture and export this product used to formulate brightener additives employed in the nickel electroplating industry and as an inhibitor for anodizing aluminium. Irs similar names are hex-3-yne-2,5-diol; hex-3-yn-2,5-diol; 3-hexyne-2,5-diol.
2, 5-Hexynedion 
Technical Data Sheet of 2, 5-Hexynedion
Revision No.: 1
Revision Date: 11 / 2018
| Product Name | 2, 5-Hexynedion |
| Trade Name | Malpanol NHD |
| Molecular Formula | C6H10O2 |
| Molecular Weight | 114.10g/mol |
| CAS No | 3031-66-1 |
* Product used to formulate brightener additives for the electroplating industry.
Synonyms
-3-diol-2,5; Malpanol NHD; Golpanol HD; 3-Hexyn-2,5-diol; 3-Hexin-2,5-diol; hex-3-yne-2,5-diol; hex-3-yn-2,5-diol; 3-hexyne-2,5-diol; Hx-3-yne-2,5-diol; Hex-3-in-2,5-diol; hex-3-yne-2,5-diol; Hex-3-yne-2,5-diol; 3-Hexyne-2,5-diol; 3-hexine-2,5-diol; Bis(1-hydroxyethyl)acetylene; 3-HEXYNE-2,5-DIOL,DL and MESO; CAS 3031-66-1.
| Appearance | Colorless to light yellow liquid |
| Odour | Product specific |
| Purity | 98% |
| Density | 1.01 - 1.03 g/cm3 (DIN 51757, ASTM D 1298, hydrometer, 23°C) |
| PH value | 3.5 - 6.5 (ISO 976, 10 %) |
| Boiling Point | 115 °C |
| Melting Point | Data not available |
| Flash Point | >110ºC |
| Refractive Index | 1.473 |
| Solubility | Malpanol HD is miscible with water in all proportions. |
| Stability | Stable under recommended storage conditions. |
| Malpanol NHD is used to formulate brightener additives employed in the Electroplating industry and as an inhibitor for anodizing aluminium. |
| It is used as a top brightener in bright and semi-bright nickel electroplating baths at a concentration of 100 - 300 mg/l. |
| Malpanol NHD has a shelf life of twelve months in sealed containers. |
| HDPE drum packaging (we can package depending upon customer requirements, e.g. 25, 50 or 200kg). |
Note: Information given in this technical data sheet is based on current knowledge and our laboratory evaluation; it is presented as per our opinion without any guarantee. Buyers must carry out their own tests and experiments to determine the suitability and completeness of our products for their use and application.
