Zinc ammonium chloride

  • Ammonium pentachlorozincate
  • Triammonium pentachlorozincate(3-)
Formula
ZnCl2.3NH4Cl
Structure
Description
A white crystalline solid.
Uses
Substance is used in production of dry cells.

Registry Numbers and Inventories.
CAS
14639-98-6
EC (EINECS/ELINCS)
238-688-1
UN (DOT)
9154
Merck
12,573
Beilstein/Gmelin
135514 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Cl5H12N3Zn
Formula mass
296.77
Sublimation point, °C
360
Density
1.81 g/cm3 (20 C)
Solubility in water
Very soluble

Hazards and Protection.
Storage
Keep tightly closed in a cool place in a tightly closed container.
Handling
Containers of this material may be hazardous when emptied. Since emptied containers retain product residues (vapor, liquid, and/or solid), all hazard precautions given in the data sheet must be observed.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
If overexposure has been determined or documented, a NIOSH/MSHA jointly approved air supplied respirator is advised in absence of proper environmental control. OSHA regulations also permit other NIOSH/MSHA respirators under specified conditions.
Small spills/leaks
Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Water spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Add soda ash (Na2CO3). Adjust pH to neutral (pH=7). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability
Stable.
Incompatibilities
Reacts as acid to neutralize bases.
Decomposition
Ammonia, ammonium chloride fumes, hydrogen chloride, zinc oxide, zinc chloride fumes.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
Fire potential
May burn but does not ignite readily.
Hazards
Some may burn but none ignite readily. May polymerize explosively when heated or involved in a fire. Containers may explode when heated. Some may be transported hot.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
Swallowing this material may be harmful or fatal. Symptoms may include severe stomach and intestinal irritation (nausea, vomiting, diarrhea), abdominal pain, and vomiting of blood. Swallowing this material may cause burns and destroy tissue in the mouth, throat, and digestive tract. Low blood pressure and shock may occur as a result of severe tissue injury.
   Inhalation
Inhalation of material may be harmful.
   Skin
Contact may cause burns.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Remove from exposure; begin artificial respiration if breathing has ceased.
   Skin
Flush with water.
   Eyes
Flush with water for at least 15 min.

Transport.
UN number
9154
Response guide
Hazard class
9
USCG CHRIS Code
ZAC
 
Std. Transport #
4962665