Ammonium tetrachlorozincate

  • Zinc ammonium chloride
Formula
(NH4)2ZnCl4
Structure
Description
Colorless to pale yellow crystals.
Uses
Galvanizing flux, pre-flux, flux.

Registry Numbers and Inventories.
CAS
14639-97-5
EC (EINECS/ELINCS)
238-687-6
Merck
12,596
Beilstein/Gmelin
45562 (G)
Swiss Giftliste 1
G-7733
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Cl4H8N2Zn
Formula mass
243.28
Melting point, °C
149-151
Density
1.23 g/cm3 (20 C)
Refractive index
1.597 (25 C)
Dielectric constant
11.4 (25 C)

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
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
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
Small Spill - Persons not wearing protective equipment should be excluded from area of spill. Material should be carefully swept onto paper. Area of spill should then be thoroughly washed to remove any residual contamination, capturing wash, and disposing of wash properly. Large Spill - Persons not wearing protective equipment should be excluded from area of spill until clean-up has been completed. Shovel material into containers. Thoroughly sweep area of spill to clean up any residual material.
Stability
Stable.
Incompatibilities
Cyanides, sulfides.
Decomposition
Ammonia, ammonium chloride fumes, hydrogen chloride, zinc oxide, zinc chloride fumes.

Fire.
Fire fighting
Extinguish fire using Use an extinguishing media appropriate for surrounding fire.. Wear a self-contained breathing apparatus with a full facepiece operated in the positive pressure demand mode with appropriate turn-out gear and chemical resistant personal protective equipment.

Health.
Poison_Class
3
Exposure effects
Symptoms of exposure to this material through breathing, swallowing, and/or passage of the material through the skin may include: mouth and throat irritation (soreness, dry or scratchy feeling, cough), irritation (nose, throat, airways), cough, headache, shortness of breath, difficult breathing, cyanosis (causes blue coloring of the skin and nails from lack of oxygen), lung edema (fluid buildup in the lung tissue), and death.
   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
This material is a dust or may produce dust. Breathing this material may be harmful or fatal.
   Skin
Can cause permanent skin damage. Symptoms may include redness, burning, and swelling of skin, burns, and other skin damage. Passage of this material into the body through the skin is possible, and may add to toxic effects from breathing or swallowing.
   Eyes
Can cause permanent eye injury. Symptoms include stinging, tearing, redness, and swelling of eyes. Can injure the cornea and cause blindness.

First aid
 
   Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
   Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
   Skin
Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
   Eyes
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Transport.