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Key Documents

8.20230

Sigma-Aldrich

3-Butyne-2-ol

(55% solution in water) for synthesis

Synonym(s):

1-Butyn-3-ol

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About This Item

UNSPSC Code:
12352104
NACRES:
NA.22

vapor pressure

30 hPa ( 20 °C)

Quality Level

autoignition temp.

340 °C

potency

57 mg/kg LD50, oral (Rat)
50-200 mg/kg LD50, skin (Rabbit)

expl. lim.

5-46 % (v/v)

pH

4-6 ( in H2O, ready-to-use solution)

bp

95-96 °C/1013 hPa

mp

-12 °C

transition temp

flash point 44 °C

density

0.95 g/cm3 at 20 °C

storage temp.

2-30°C

Analysis Note

Assay (iodometric): 50.0 - 55.0 %
Density (d 20 °C/ 4 °C): 0.950 - 0.955

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

111.2 °F

Flash Point(C)

44 °C


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