|CAS No.||76-09-5||Density||0.963 g/cm 3|
|Solubility||Melting Point||40-43 °C(lit.)
|Formula||C6H14O2||Boiling Point||174.4 °C at 760 mmHg|
|Molecular Weight||118.20||Flash Point||77.2 °C|
|Transport Information||UN 1325 4.1/PG 2||Appearance||white solid|
|Molecular Structure||Hazard Symbols||Xi|
1,1,2,2-Tetramethylethyleneglycol;2,3-Dihydroxy-2,3-dimethylbutane;2,3-Dimethyl-2,3-butanediol;2,3-Dimethyl-2,3-dihydroxybutane;NSC 25943;Pinacone;Tetramethylethylene glycol;2,3-Dimethyl-butane-2,3-diol;2,3-Butanediol,2,3-dimethyl-;
1. Introduction of Pinacol
Pinacol is a white solid organic compound. It is an alcohol that has -OH groups on adjacent carbon atoms on the same side.
2. Properties of Pinacol
The density of Pinacol(76-09-5) is 0.963 g/cm3 and it has a melting point of 40-43 °C(lit.). The boiling point is 174.4 °C at 760 mmHg. The refractive index is about 1.448. Its flash point is 77.2 °C.
3. Toxicity of Pinacol
CAS# 76-09-5: Draize test, rabbit, skin: 500 mg/24H Moderate;
Oral, mouse: LD50 = 3380 mg/kg;
Carcinogenicity: Pinacol - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
Other: The toxicological properties have not been fully investigated. See actual entry in RTECS for complete information.
4. Safety Information of Pinacol
R38:Irritating to skin.
R36/37/38:Irritating to eyes, respiratory system and skin.
S37:Wear suitable gloves.
S37/39:Wear suitable gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR UN: 1325 4.1/PG 2
WGK Germany: 2
5. Preparation of Pinacol
Pinacol may be produced by the pinacol coupling reaction from acetone.
6. Use of Pinacol
Pinacol can be use with borane and boron trichloride to produce useful synthetic intermediate such as pinacolborane, bis(pinacolato)diboron, and pinacolchloroborane
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