2-Butyne-1,4-diol

SECTION 2: Hazards identification

GHS Classification GHS classification of chemical product Acute toxicity (Oral) : Category 3 Acute toxicity (Inhalation) : Category 3 Acute toxicity (Dermal) : Category 3 Skin corrosion/irritation : Category 1B Serious eye damage/eye irritation : Category 1 Skin sensitization : Category 1 Specific target organ toxicity - : Category 1 (Systemic toxicity) single exposure Specific target organ toxicity - : Category 1 (Liver, hematopoietic system) repeated exposure Specific target organ toxicity - : Category 2 (Kidney) repeated exposure Short-term (acute) aquatic hazard : Category 3

Signal word

Danger

Hazard statements

Toxic if swallowed, in contact with skin or if inhaled. Causes severe skin burns and eye damage. May cause an allergic skin reaction. Causes damage to organs (Systemic toxicity). Causes damage to organs (Liver, hematopoietic system) through prolonged or repeated exposure. May cause damage to organs (Kidney) through prolonged or repeated exposure. Harmful to aquatic life.

Prevention

Do not breathe dust/ fume/ gas/ mist/ vapors/ spray. Wash skin thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Contaminated work clothing should not be allowed out of the work- place. Avoid release to the environment. Wear protective gloves/ protective clothing/ eye protection/ face pro- tection.

Response

IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediate- ly call a POISON CENTER/ doctor. IF exposed or concerned: Call a POISON CENTER/ doctor. If skin irritation or rash occurs: Get medical advice/ attention. Take off immediately all contaminated clothing and wash it before reuse.

Storage

Store in a well-ventilated place. Keep container tightly closed. Store locked up.

Disposal

Dispose of contents/ container to an approved waste disposal plant.

Other hazards which do not result in classification

None known.