1. Product Identification

Synonyms: Zinc Chloride, Zinc Dichloride, Zinc Butter
CAS No.: 7646-85-7
Molecular Weight: 136.30
Chemical Formula: ZnCl2
Product Codes:
J.T. Baker: 4320, 4321, 4322, 4324, 4326
Mallinckrodt: 8772, 8780

2. Composition/Information on Ingredients

 Ingredient                                CAS No         Percent        Hazardous                                  

 ---------------------------------------   ------------   ------------   ---------  

 Zinc Chloride                             7646-85-7        97 - 100%       Yes                                                                   

3. Hazards Identification

Emergency Overview
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DANGER! CORROSIVE. CAUSES BURNS TO ANY AREA OF CONTACT. HARMFUL IF SWALLOWED OR INHALED. AFFECTS THE CARDIOVASCULAR SYSTEM.

SAF-T-DATA^(tm) Ratings (Provided here for your convenience)
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Health Rating: 3 - Severe (Life)
Flammability Rating: 1 - Slight
Reactivity Rating: 2 - Moderate
Contact Rating: 3 - Severe (Corrosive)
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT & APRON; VENT HOOD; PROPER GLOVES
Storage Color Code: White (Corrosive)
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Potential Health Effects
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Inhalation:
Extremely destructive to tissues of the mucous membranes and upper respiratory tract. Symptoms may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting.
Ingestion:
Toxic. May cause irritation or corrosion to the gastrointestinal tract with abdominal pain, nausea, and vomiting. May cause delayed death occurring from strictures of the esophagus and pylorus.
Skin Contact:
May cause severe irritation, skin burns and ulcerations. Solutions are corrosive. Symptoms include redness and pain.
Eye Contact:
May cause redness, pain, and blurred vision. Splashes from solutions may cause eye damage.
Chronic Exposure:
Repeated skin contact can cause varying degrees of problems ranging from dermatitis to ulcerations. Repeated Inhalation can cause occupational asthma.
Aggravation of Pre-existing Conditions:
Dermatitis, cardiac and respiratory disorders.

4. First Aid Measures

Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention immediately.
Ingestion:
If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never give anything by mouth to an unconscious person. Get medical attention immediately.
Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical attention immediately. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.

5. Fire Fighting Measures

Fire:
Not considered to be a fire hazard.
Explosion:
Not considered to be an explosion hazard.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire.
Special Information:
Use protective clothing and breathing equipment appropriate for the surrounding fire.

6. Accidental Release Measures

Ventilate area of leak or spill. Keep unnecessary and unprotected people away from area of spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Pick up and place in a suitable container for reclamation or disposal, using a method that does not generate dust. Avoid release to the environment. US Regulations (CERCLA) require reporting spills and releases to soil, water and air in excess of reportable quantities. The toll free number for the US Coast Guard National Response Center is (800) 424-8802.

7. Handling and Storage

Keep in a well closed container stored under cold to warm conditions, 2 to 40 C, (36 to 104F). Protect against physical damage. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.

8. Exposure Controls/Personal Protection

Airborne Exposure Limits:
Zinc chloride:
OSHA Permissible Exposure Limit (PEL):
1 mg/m3 (TWA) 8H, as fume.
ACGIH Threshold Limit Value (TLV):
1 mg/m3 (TWA); 2 mg/m3 (STEL) for fume
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne Exposure Limits. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area. Please refer to the ACGIH document, Industrial Ventilation, A Manual of Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved):
If the exposure limit is exceeded, a full facepiece respirator with dust/mist filter may be worn up to 50 times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. For emergencies or instances where the exposure levels are not known, use a full-facepiece positive-pressure, air-supplied respirator. WARNING: Air purifying respirators do not protect workers in oxygen-deficient atmospheres.
Skin Protection:
Wear impervious protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact.
Eye Protection:
Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.

9. Physical and Chemical Properties

Appearance:
White crystalline granules.
Odor:
Odorless.
Solubility:
423 g/l00 g water @ 25C (77F)
Density:
2.91
pH:
ca. 4 Aqueous solution
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
732C (1350F)
Melting Point:
290C (554F)
Vapor Density (Air=1):
Not applicable.
Vapor Pressure (mm Hg):
1 @ 428C (802F)
Evaporation Rate (BuAc=1):
Not applicable.

10. Stability and Reactivity

Stability:
Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
When heated to decomposition it emits toxic fumes of chlorine and zinc oxide.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Cyanides and sulfides, powdered zinc. When mixed with potassium, a weak explosion will occur on impact.
Conditions to Avoid:
Incompatibles.

11. Toxicological Information

Oral rat LD50: 350 mg/kg. Investigated as a tumorigen, mutagen, reproductive effector.

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                                         ---NTP Carcinogen---

 Ingredient                             Known    Anticipated    IARC Category

 ------------------------------------   -----    -----------    -------------

 Zinc Chloride (7646-85-7)               No          No            None

12. Ecological Information

Environmental Fate:
No information found.
Environmental Toxicity:
Dangerous to the environment. Very toxic to aquatic organisms; may cause long term adverse effects in the aquatic environment.

13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.