Vijaychem Industries

ISO 9001:2008 Certified Company

Zinc Chloride - Fire Fighting Measures

Flash Point
Not combustible (does not burn) (33)
Lower Flammable (Explosive) Limit (LFL/LEL):
Not applicable
Upper Flammable (Explosive) Limit (UFL/UEL):
Not applicable
Auto ignition (Ignition) Temperature:
Not applicable
Sensitivity to Mechanical Impact
Probably not sensitive. Stable material.
Sensitivity to Static Charge
Zinc chloride is unlikely to accumulate static charge. Since it does not burn, it will not be ignited by a static discharge.
Electrical Conductivity
Not available
Minimum Ignition Energy
Not applicable.
Combustion and Thermal Decomposition Products
Hydrogen chloride gas, zinc oxide fume and zinc/zinc oxides may be evolved if zinc chloride is involved in a fire.(31)
Fire Hazard Summary
Zinc chloride does not burn or support combustion. During a fire, corrosive and toxic hydrogen chloride gas may be generated by thermal decomposition or combustion. Closed containers may rupture violently when exposed to fire or excessive heat for sufficient time.
Extinguishing Media
Zinc chloride is not combustible (does not burn). Use extinguishing media suitable for surrounding fire.
Fire Fighting Instructions
Evacuate area and fight fire from a safe distance or a protected location. Approach fire from upwind to avoid hazardous vapours and toxic decomposition products. Closed containers may rupture violently when exposed to the heat of the fire. If possible, isolate materials not yet involved in the fire, and move containers from the fire area if this can be done without risk, and protect personnel. Otherwise, fire-exposed containers, tanks or car/trailer loads should be cooled by application of hose streams. Application should begin as soon as possible (within the first several minutes) and should concentrate on any unwetted portions of the container. Apply water from the side and from a safe distance until well after the fire is out. Take care not to get water inside container. Cooling should continue until well after the fire is out. If this is not possible, use unmanned monitor nozzles and immediately evacuate the area. Withdraw immediately in case of rising sound from venting safety device or any discoloration of tank. ALWAYS stay away from the ends of tanks, but be aware that flying material (shrapnel) from ruptured tanks may travel in any direction. Tanks or drums should not be approached directly after they have been involved in a fire, until they have been completely cooled down.
Protection of Fire Fighters
The decomposition products of zinc chloride are corrosive and hazardous to health. Do not enter without wearing specialized protective equipment suitable for the situation. Firefighter's normal protective clothing (Bunker Gear) will not provide adequate protection. Chemical resistant clothing (e.g. chemical splash suit) and positive pressure self-contained breathing apparatus (NIOSH approved or equivalent) may be necessary.
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) HAZARD IDENTIFICATION
NFPA - Comments: NFPA has no listing for this chemical in Codes 49 or 325.