8.18801

2,3-Butanediol

(mixture of meso- D- and L-form) for synthesis

• Synonym(s): 2,3-Butanediol, 2,3-Butylene glycol
• Linear Formula: CH₃CH(OH)CH(OH)CH₃
• CAS Number: 513-85-9
• Molecular Weight: 90.12
• MDL number: MFCD00004523
• UNSPSC Code: 12352104
• EC Index Number: 208-173-6
• NACRES: NA.22

Properties

• vapor pressure: <1 hPa ( 20 °C)
• Quality Level: 200
• form: liquid
• autoignition temp.: 395 °C (DIN 51794)
• potency: >5000 mg/kg LD₅₀, oral (Rat)
• expl. lim.: 3.1-11.4 % (v/v)
• pH: 7 (20 °C in H₂O, Aqueous solution)
• bp: 180-182 °C/1013 hPa
• mp: 18-20 °C
• transition temp: flash point 96 °C (DIN 51758)
• density: 1.00 g/cm³ at 20 °C
• storage temp.: 2-30°C
• InChI: 1S/C4H10O2/c1-3(5)4(2)6/h3-6H,1-2H3/t3-,4+
• InChI key: OWBTYPJTUOEWEK-ZXZARUISSA-N

Description

Analysis Note

Assay isomers (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.000 - 1.005
Water (K. F.): ≤ 2.0 %
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 185.0 °F - closed cup
• Flash Point(C): 85 °C - closed cup