Carbon Suboxide

Name:
Carbon Suboxide
Detailed information:

M Formula:	C3O2
Properties:
Colorless gas or liquid; strong, pungent odor. Bp 7C, fp −110C, refr index 1.45, d 1.12. Forms malonic acid with water. Polymerizes on storage, even under pressure of 7 atm.
Derivation:
From malonic acid by destructive distillation.
Hazard:
Explosive limits in air 6–30%. Strong irritant to eyes and mucous membranes, cause lachrymation and impaired breathing.
Use:
Dyeing auxiliary, chemical intermediate.