Zinc Powder









Product Name:    Zinc Powder

Formula:             Zn


Supplier:             ESPI Metals

                            1050 Benson Way

                            Ashland, OR 97520

Telephone:          800-638-2581

Fax:                     541-488-8313

Email:                  This email address is being protected from spambots. You need JavaScript enabled to view it.

Emergency:         Infotrac 800-535-5053 (US) or 352-323-3500 (24 hour)


Recommended Uses:   Scientific Research




GHS Classification (29 CFR 1910.1200):   Not classified as hazardous

GHS Label Elements:

Signal Word: N/A

Hazard Statements: N/A

Precautionary Statements:   N/A




Ingredient:        Zinc

CAS#:                 7440-66-6

%:                      100

EC#:                   231-175-3




General Measures: Remove patient from area of exposure.

INHALATION: Remove to fresh air, keep warm and quiet, give oxygen if breathing is difficult. Seek medical attention.

INGESTION: Rinse mouth with water. Do not induce vomiting. Seek medical attention. Never induce vomiting or give anything by mouth to an unconscious person.

SKIN: Remove contaminated clothing, brush material off skin, wash affected area with soap and water. Seek medical attention if irritation develops or persists.

EYES: Flush eyes with lukewarm water, including under upper and lower eyelids, for at least 15 minutes. Seek medical attention if irritation develops or persists.


Most Important Symptoms/Effects, Acute and Delayed: May cause irritation. See section 11 for more information.

Indication of Immediate Medical Attention and Special Treatment: No other relevant information available.




Extinguishing Media: Use Class D dry powder extinguishing agent or dry sand.

Unsuitable Extinguishing Media: Do not use water.

Specific Hazards Arising from the Material: Fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source, is a weak dust explosion hazard. May release zinc oxide fume if involved in a fire.

Special Protective Equipment and Precautions for Firefighters: Wear full face, self-contained breathing apparatus and full protective clothing.




Personal Precautions, Protective Equipment, and Emergency Procedures: Wear appropriate respiratory and protective equipment specified in section 8. Isolate spill area and provide ventilation. Avoid breathing dust or fume. Avoid contact with skin and eyes. Eliminate all sources of ignition.

Methods and Materials for Containment and Cleaning Up: Avoid dust formation. Use only non-sparking tools and natural bristle brushes. Sweep or vacuum up spill using a vacuum rated for combustible metal dusts equipped with a HEPA filter. Place in properly labeled closed containers. Wet zinc powder should be collected into an open container and set into an open, well-ventilated area to allow for drying.

Environmental Precautions: Do not allow to enter drains or to be released to the environment.




Precautions for Safe Handling: Handle in an enclosed, controlled process. Use non-sparking tools. Protect from sources of ignition. Avoid creating dust. Avoid breathing dust or fumes. Provide adequate ventilation if dusts are created. Avoid contact with skin and eyes. Wash thoroughly before eating or smoking. Protect from water/moisture. Do not create a dust cloud by using a brush or compressed air. See section 8 for information on personal protection equipment.

Conditions for Safe Storage: Store in a cool, dry area. Store material tightly sealed in properly labeled containers. Store away from heat and ignition sources. Do not store together with oxidizers. Protect from water/moisture. See section 10 for more information on incompatible materials.




Exposure Limits:     Zinc

OSHA/PEL:              No exposure limit established

ACGIH/TLV:             No exposure limit established

Engineering Controls: When working with finely divided powders, handle under argon in a controlled, enclosed environment if possible. Ensure adequate ventilation to maintain exposures below occupational limits. Whenever possible the use of local exhaust ventilation or other engineering controls is the preferred method of controlling exposure to airborne dust and fume to meet established occupational exposure limits. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating or smoking. Do not blow dust off clothing or skin with compressed air.

Individual Protection Measures, Such as Personal Protective Equipment:

Respiratory Protection: Use suitable respirator when high concentrations are present.

Eye Protection: Safety glasses

Skin Protection: Impermeable gloves, protective work clothing as necessary.





Form:                    Powder

Color:                    Gray

Odor:                     Odorless

Odor Threshold:    Not determined

pH:                                              N/A

Melting Point:                             419.58 oC

Boiling Point:                              907 oC

Flash Point:                                 N/A

Evaporation Rate:                       N/A

Flammability:                             No data

Upper Flammable Limit:             No data

Lower Flammable Limit:             No data


Vapor Pressure:                          1 mm Hg @ 487 oC

Vapor Density:                             N/A

Relative Density (Specific Gravity):     7.14 g/cc


Solubility in H2O:                         Insoluble

Partition Coefficient (n-octanol/water):   Not determined


Autoignition Temperature:         690 oC (cloud), 540 oC (layer)

Decomposition Temperature:     No data

Viscosity:                                     N/A




Reactivity: No data

Chemical Stability: Stable under recommended storage conditions.

Possibility of Hazardous Reactions: Zinc powder will react with acids and strong alkalis, and also with water but more slowly, to generate hydrogen gas. The heat of this reaction could ignite the hydrogen. Fine dust from processing may ignite if allowed to accumulate and subjected to an ignition source.

Conditions to Avoid: Avoid sources of ignition, dusting conditions, getting zinc dust or powder wet or damp.

Incompatible Materials: Strong oxidizing agents such as chlorine, fluorine, bromine, sodium potassium or barium peroxide, sodium or potassium chlorate, chromium trioxide and fused ammonium nitrate. Elemental sulfur dust, halogenated hydrocarbons or chlorinated solvents and chlorinated rubber.

Hazardous Decomposition Products: Zinc oxide fume, hydrogen gas.






Likely Routes of Exposure: Inhalation, skin and eyes.

Symptoms of Exposure: May cause irritation if dusts or fumes are inhaled or swallowed. Fines/dusts may irritate skin and eyes.

Acute and Chronic Effects: Zinc is an essential trace element and necessary for human health. It is involved in the synthesis and metabolism of nutrients, cell and organ structure and integrity, cell division, immune function and wound healing. Acute ingestion of high amounts of zinc may cause nausea, vomiting, loss of appetite, abdominal cramps, diarrhea and headaches. Chronic ingestion of high amounts may cause copper deficiency, altered iron function and reduced immune function. Pure zinc powder, dust and fume are relatively nontoxic to humans by inhalation. Inhalation of fumes containing zinc oxide may cause metal fume fever. Symptoms include cough, shortness of breath, sore throat, chest pain, headache and fever.

Acute Toxicity: No data

Carcinogenicity: NTP: Not identified as carcinogenic   IARC: Not identified as carcinogenic

To the best of our knowledge the chemical, physical and toxicological characteristics of the substance are not fully known.




Ecotoxicity: No data

Persistence and Degradability: No data

Bioaccumulative Potential: No data

Mobility in Soil: No data

Other Adverse Effects: Do not allow material to be released to the environment. No further relevant information available.




Waste Disposal Method:

Product: Dispose of in accordance with Federal, State and Local regulations.

Packaging: Dispose of in accordance with Federal, State and Local regulations.





UN Number:                            UN1436

UN Proper Shipping Name:    Zinc powder

Transport Hazard Class:        4.3 (4.2)

Packing Group:                       III

Marine Pollutant:                    No

Special Precautions:              Warning: Substances which, in contact with water, emit flammable gases.




TSCA Listed: All components are listed.

Regulation (EC) No 1272/2008 (CLP): Hazardous to the aquatic environment - acute hazard, category 1, Hazardous to the aquatic environment - chronic hazard, category 1.

Canada WHMIS Classification (CPR, SOR/88-66): N/A

HMIS Ratings: Health: 1     Flammability: 1     Physical: 1

NFPA Ratings: Health: 1     Flammability: 1     Instability: 1

Chemical Safety Assessment: A chemical safety assessment has not been carried out.




The information contained in this document is based on the state of our knowledge at the time of publication and is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI Metals makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information. ESPI Metals shall not be held liable for any damages resulting from handling or from contact with the above product. Users should satisfy themselves that they have all current data relevant to their particular use.


Prepared by:             ESPI Metals

Revised/Reviewed:   July 2015