1,4-BUTYNEDIOL

White to light-brown solid or brownish-yellow aqueous solution. Solid sinks and mixes with water. (USCG, 1999)

none

Soluble in water.

Excerpt from 153 [Substances - Toxic and/or Corrosive (Combustible)]:

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form. (ERG, 2020)

May cause dermatitis. (USCG, 1999)

Pure 1,4-BUTYNEDIOL is non-explosive. Small amounts of certain impurities-alkali hydroxides, alkaline earth hydroxides, halides-may cause explosive decomposition upon distillation. Butynediol should not be treated with basic catalysts in the absence of a solvent at room temperature, and its stability is less with elevated temperatures. In strong acids, contamination with mercury salts can also result in violent decomposition. [NFPA 491M 1991].

• Alcohols and Polyols
• Alkynes, with No Acetylenic Hydrogen
• Water and Aqueous Solutions

Use caution: Liquids with this reactive group classification have been known to react with the absorbent listed below.

• Cellulose-Based Absorbents

Excerpt from 153 [Substances - Toxic and/or Corrosive (Combustible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2020)

Fire Extinguishing Agents: Water, alcohol foam, dry chemical, or carbon dioxide (USCG, 1999)

Excerpt from 153 [Substances - Toxic and/or Corrosive (Combustible)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2020)

Neoprene rubber gloves and safety goggles or face shield. (USCG, 1999)

No information available.

SKIN CONTACT: wash affected skin area thoroughly with water.

EYE CONTACT: immediately wash with water for at least 15 minutes and get medical attention. (USCG, 1999)

• BIS(HYDROXYMETHYL)ACETYLENE
• 2-BUTYNE-1, 4-DIOL
• BUTYNEDIOL
• 1,4-BUTYNEDIOL
• 2-BUTYNEDIOL
• 1,4-DIHYDROXY-2-BUTYNE