In large ingestions, nitrates may cause methemoglobinemia. Methemoglobinemia should be suspected if cyanosis occurs. Water fog, dry chemical, or carbon dioxide. Use suitable for surrounding fire. Use water spray to cool containers.
Nitrate salts can support combustion under certain conditions.
Do not allow product to evaporate to dryness. For fires beyone the incipient stage, emergency responders in the immediate hazard area should wear bunker gear. In addition, wear other appropriate protective equipment as conditions warrant. Isolate immediate hazard area. Keep unauthorized personnel out.