Chlorinated organic protective treatment
Impregnite CC-2
Also known as CC-2, CC2, XX-CC3, XXCC3
CC-2 was a reactive clothing treatment developed to protect against blister agents such as mustard. Army records describe its discovery in 1924, standardization in 1928, and wartime manufacture. It was a protective material, not evidence of finished poison-gas production at every plant that made it.
Regional record
Western New York history
- DuPont manufactured impregnite at 3163 Buffalo Avenue in Niagara Falls during WWII; Hooker reactivated the property for impregnite production in 1951-1953. See the Solvent Chemical place record for the court-supported site history.
- A historical technical monograph discussed in the Niagara Falls litigation described hazardous aniline-related production sludge and disposal in drums. The particular dump is not conclusively identified in that account.
These examples summarize the linked Atlas place records. Open those records for site-specific dates, findings, cleanup actions, and sources.
Environmental behavior
Persistence and movement
CC-2 contains chlorine rather than fluorine and is not a PFAS. The Army reports that protective effectiveness diminished during storage and use. That is not an environmental half-life and does not establish that degradation products or manufacturing wastes became harmless; their persistence requires compound- and site-specific evidence.
Pathways
How exposure may occur
- Potential worker contact with manufacturing raw materials, sludge, or dust
- Solvent vapor exposure during historical clothing impregnation
- Contact with improperly disposed production wastes where a pathway is established
People
Potential long-term human effects
- The strongest reviewed local toxicity evidence concerns raw materials and production sludge: the historical plant monograph described aniline-related hazards, including inhalation and skin absorption.
- The Army identifies tetrachloroethane used in the clothing-treatment process as a highly toxic solvent. Its hazards must be distinguished from the finished treatment itself.
- The reviewed sources do not establish a complete modern toxicological assessment of CC-2 itself or a site-specific present-day exposure.
Other living systems
Potential ecological effects
- Environmental effects of production wastes, solvents and degradation products must be evaluated by identified compound, concentration and exposure pathway.
- The reviewed sources do not establish a CC-2-specific ecological risk for the Niagara Falls property.
Limits
Important uncertainty
Historical protective use does not establish safety of manufacture or disposal. Do not infer finished-product toxicity solely from its raw materials, equate CC-2 with PFAS, or identify a waste destination without direct evidence.