| Product Identification | Back to Contents | 【Product Name】
HD-M | 【Synonyms】
2,5-Dimethyl-3-hexyne-2,5-diol
2,5-dimethylhex-3-yne-2,5-diol
Tetramethyl-2-butynediol | 【CAS】
142-30-3 | 【Formula】
C8H14O2 | 【Molecular Weight】
142.19999999999999 | 【EINECS】
205-533-4 | 【RTECS】
MR0176000 | 【RTECS Class】
Drug | 【Beilstein/Gmelin】
969835 | 【Beilstein Reference】
4-01-00-02699 | 【EC Class】
harmful |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Very light yellow, crystalline flakes. | 【Solubility in water】
Soluble | 【Melting Point】
93 - 95 | 【Boiling Point】
205 | 【Vapor Pressure】
0.06 (25 C) | 【Density】
0.9469 g/cm3 (20 C) | 【pKa/pKb】
12.90 (pKa) | 【Partition Coefficient】
.26 | 【Heat Of Vaporization】
51.3 kJ/mol | 【Usage】
Wire-drawing lubricant, antifoaming agent, coupling agent in resin coatings, chemical intermediate. | 【Refractive Index】
1.4545 (20 C) |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. | 【Skin】
May cause skin irritation. | 【Eyes】
May cause eye irritation. | 【Ingestion】
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. | 【EC Risk Phrase】
R 21/22 43 | 【EC Safety Phrase】
S 36/37 | 【UN (DOT)】
3335 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | 【Exposure Effects】
The toxicological properties of this material have not been investigated. | 【Poison Class】
4 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
86 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam. | 【Lower exp. limit】
1.2 |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Incompatibilities】
Oxidizing agents. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
|
| Company Name: |
J & K SCIENTIFIC LTD. |
| Tel: |
010-82848833 400-666-7788 |
| Fax: |
86-10-82849933 |
| WebSite: |
http://www.jkchemical.com |
| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Fax: |
021-67582001/03/05 |
| WebSite: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical |
| Tel: |
021-021-58432009 400-005-6266 |
| Fax: |
021-58436166 |
| WebSite: |
http://www.energy-chemical.com |
|