Basic information
- Name:
Pinacol
- CAS No.:
76-09-5
- Molecular Structure:
- Formula:
- C6H14O2
- Molecular Weight:
- 118.20
- Deleted CAS:
- 52400-10-9
- Synonyms:
- 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-;
- EINECS:
- 200-933-5
- Density:
- 0.963 g/cm 3
- Melting Point:
- 40-43 °C(lit.)
- Boiling Point:
- 174.4 °C at 760 mmHg
- Flash Point:
- 77.2 °C
- Appearance:
- white solid
- Hazard Symbols:
Xi- Risk Codes:
- 38-36/37/38
- Safety Description:
- 37-37/39-26 Details
- Transport Information:
- UN 1325 4.1/PG 2
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Specification
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
LD50/LC50: RTECS:
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
Hazard Codes:
Xi
Risk Statements:
R38:Irritating to skin.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements:
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
RTECS EK:1720000
F: 3
5. Preparation of Pinacol
Pinacol may be produced by the pinacol coupling reaction from acetone.
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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