3-Hexyne-2,5-diol

  • 3-Hexyn-2,5-diol
Formula
C6H10O2
Structure

Registry Numbers and Inventories.
CAS
3031-66-1
EC (EINECS/ELINCS)
221-209-5
26 36/37/39 45
RTECS
MR0175000
RTECS class
Other
UN (DOT)
2811
Beilstein/Gmelin
1720667
Beilstein Reference
3-01-00-02271
Swiss Giftliste 1
G-6217
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H10O2
Formula mass
114.16
Melting point, °C
42
Boiling point, °C
222
Vapor pressure, mmHg
0.02 (25 C)
Density
1.023 g/cm3 (13 C)
Solubility in water
Very soluble
Refractive index
1.4698 (13 C)
pKa/pKb
12.8 (pKa)
Heat of vaporization
53.3 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Rubber gloves. Chemical safety goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Incompatibilities
Strong oxidizing agents, Strong acids, Acid chlorides, Acid anhydrides.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
104
Autoignition, °C
280
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
3
Exposure effects
Irritant. Irritating to eyes, respiratory system and skin.
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
2811
Response guide
Hazard class
6.1