ZINC OXIDE
MSDS Number: Z3705 --- Effective Date: 03/05/97
1. Product Identification
Synonyms: Chinese white; zinc white; flowers of zinc; calamine
CAS No.: 1314-13-2
Molecular Weight: 81.38
Chemical Formula: ZnO
Product Codes:
J.T. Baker:
4358, 4360, 5070
Mallinckrodt:
3419, 4032, 7030, 8824, 8825, 8832, 8843
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------- ---------
Zinc Oxide 1314-13-2 90 - 100% Yes
3. Hazards Identification
Emergency Overview
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CAUTION! MAY IRRITATE RESPIRATORY TRACT.
J.T. Baker SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 2 - Moderate
Flammability Rating: 0 - None
Reactivity Rating: 0 - None
Contact Rating: 1 - Slight
Lab Protective Equip: GOGGLES; LAB COAT
Storage Color Code: Orange (General Storage)
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Potential Health Effects
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Inhalation:
May cause irritation to the respiratory tract. Symptoms may include
coughing and shortness of breath. Inhalation can cause a flu-like illness
(metal fume fever). This 24- to 48-hour illness is characterized by chills,
fever, aching muscles, dryness in the mouth and throat and headache.
Ingestion:
Large oral doses may cause irritation to the gastrointestinal tract.
Skin Contact:
Not expected to be a health hazard from skin exposure.
Eye Contact:
Not expected to be a health hazard.
Chronic Exposure:
No information found.
Aggravation of Pre-existing Conditions:
Persons with a pre-existing heart condition or impaired respiratory
function may be more susceptible to the effects of this substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. Get medical attention for any breathing difficulty.
Ingestion:
Not expected to require first aid measures. If large amounts were
swallowed, give water to drink and get medical advice.
Skin Contact:
Not expected to require first aid measures. Wash exposed area with soap and
water. Get medical advice if irritation develops.
Eye Contact:
Not expected to require first aid measures. Wash thoroughly with running
water. Get medical advice if irritation develops.
5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard.
Explosion:
Finely divided powder presents an explosion hazard.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved
self-contained breathing apparatus with full facepiece operated in the
pressure demand or other positive pressure mode. Zinc oxide fume may be
released when heated.
6. Accidental Release Measures
Clean-up personnel require protective clothing and respiratory protection
from dust. Ventilate area of leak or spill. Wear appropriate personal
protective equipment as specified in Section 8. Spills: Sweep up and
containerize for reclamation or disposal. Vacuuming or wet sweeping may be
used to avoid dust dispersal.
7. Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated area.
Protect against physical damage. Isolate from incompatible substances.
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 oxide:
-OSHA Permissible Exposure Limit (PEL):
fume: 5 mg/m3 (TWA)
respirable fraction: 5 mg/m3 (TWA)
total dusts: 15 mg/m3 (TWA)
-ACGIH Threshold Limit Value (TLV):
dusts: 10 mg/m3 (TWA), for inhalable (total) particulate
matter containing no asbestos and < 1% crystalline silica.
fumes: 5 mg/m3 (TWA); 10 mg/m3 (STEL)
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 half-face dust/mist respirator may be
worn for up to ten times the exposure limit or the maximum use
concentration specified by the appropriate regulatory agency or respirator
supplier, whichever is lowest. A full-face piece dust/mist respirator 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 protective gloves and clean body-covering clothing.
Eye Protection:
Use chemical safety goggles. Maintain eye wash fountain and quick-drench
facilities in work area.
9. Physical and Chemical Properties
Appearance:
White to yellowish-white amorphous powder.
Odor:
Odorless.
Solubility:
Insoluble in water, alcohol; soluble in dilute acids.
Specific Gravity:
5.67
pH:
No information found.
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
Sublimes.
Melting Point:
1975C (3587F)
Vapor Density (Air=1):
No information found.
Vapor Pressure (mm Hg):
No information found.
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage. Absorbs carbon dioxide
from air.
Hazardous Decomposition Products:
When heated to very high temperatures, zinc oxide sublimes to produce toxic
fumes.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Has exploded when mixed with chlorinated rubber. Reacts violently with
magnesium, linseed oil. Zinc oxide and magnesium can react explosively when
heated.
Conditions to Avoid:
Heat, incompatibles.
11. Toxicological Information
Investigated as a mutagen, reproductive effector.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Zinc Oxide (1314-13-2) No No None
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
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.
14. Transport Information
Not regulated.
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Zinc Oxide (1314-13-2) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Zinc Oxide (1314-13-2) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Zinc Oxide (1314-13-2) No No No Zinc compoun
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Zinc Oxide (1314-13-2) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: No Fire: No Pressure: No
Reactivity: No (Pure / Solid)
Australian Hazchem Code: No information found.
Poison Schedule: No information found.
WHMIS:
This MSDS has been prepared according to the hazard criteria of
the Controlled Products Regulations (CPR) and the MSDS contains
all of the information required by the CPR.
16. Other Information
NFPA Ratings:
Health: 1 Flammability: 0 Reactivity: 0
Label Hazard Warning:
CAUTION! MAY IRRITATE RESPIRATORY TRACT.
Label Precautions:
Avoid breathing dust.
Keep container closed.
Use with adequate ventilation.
Label First Aid:
If inhaled, remove to fresh air. Get medical attention for any breathing
difficulty.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 8. New 16
section MSDS format, all sections have been revised.
Disclaimer:
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Mallinckrodt Baker, Inc. provides the information contained herein in
good faith but makes no representation as to its comprehensiveness or accuracy.
This document is intended only as a guide to the appropriate precautionary
handling of the material by a properly trained person using this product.
Individuals receiving the information must exercise their independent judgment
in determining its appropriateness for a particular purpose. MALLINCKRODT
BAKER, INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE
PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, MALLINCKRODT BAKER, INC.
WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS
INFORMATION.
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Prepared by: Strategic Services Division
Phone Number: (314) 539-1600 (U.S.A.)