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Date of Issue : Mar 2002 1. IDENTIFICATION
General Product Name : ZINC OXIDE Other Names : CHINESE WHITE ; ZINC WHITE FLOWERS OF ZINC UN No. : N/A Dangerous Goods Class : None Allocated Subsidiary Risk : None Allocated Hazchem Code : N/A Pack Group : 0 EPG : N/A Poisons Schedule : N/A Uses : Accelerator activator, pigment and reinforcing agent in rubber, ointments, pigment and mould-growth inhibitor in paints, UV absorber in plastics, ceramics, floor tile, glass, zinc salts, feed additive, dietary supplement, seed treatment cosmetics, photoconductor in office copying machines and in colour photography, piezoelectric devices, artists' colourant.
1.1 Physical Description / Properties
Appearance : White to yellowish- white amorphous powder, odourless. Formula : ZnO Boiling Point : N/A deg C Melting Point : 1975 deg C Vapour Pressure : 12 mm Hg (1 atmosphere) Specific Gravity : 5.67 (water = 1) Flash Point : N/A pH : N/A () Solubility in water : Insol g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Solubility in water - Insoluble in water and alcohol. Soluble in dilute acids. Boiling point = Sublimes. 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Large doses may cause irritation to the gastrointestinal tract. Eye
Irritation resulting from loose foreign body. Skin
Not expected to be a health hazard from skin exposure. Inhaled
May cause irritation to the respiratory tract. Symptoms may include coughing and shortness of breath. Inhalation can cause flu-like illness (metal fume fever). This 24 to 48 hours illness is characterised bu shills, fever, aching muscles, dryness in the mouth and throat and headache. 2.2 Health Effects - Chronic
Aggravation of Pre-existing conditions - Persons with pre-existing heart conditions or impaired respiratory function may be more susceptable to the effects of this substance.
2.3 First Aid
Swallowed
Not expected to require first aid measures. If large amounts were swallowed, give water to drink and get medical advice.
Eye
Not expected to require first aid measures. Wash eye thoroughly with running water. Get medical advice if irritation develops.
Skin
Not expected to require first aid measures. Wash exposed area with soap and water. Get medical advice if irritation develops.
Inhaled
Remove to fresh air. Get medical attention for any breathing difficulty.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
Investigated as a mutagen and reproductuve effector. Carcinogenicity - None (IARC Category)
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
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)
3.2 Engineering Controls
A system of local and/or general exhaust is recommended to keep employee exposures below 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.
3.3 Personal Protection
Respiratpry protection - 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, which- ever is lowest. For emergencies or instances where the exposure levels are not known, use a full face-piece 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.
3.4 Flammability
Non-flammable SAFE HANDLING INFORMATION
4.1 Storage / Transport
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate from incompatible substances such as heat, chlorinated rubber, magnesium and linseed oil. 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.
4.2 Packaging / Labelling UN No. N/A Class None Allocated Sub Risk None Allocated Hazchem Code N/A Pack Group 0 EPG No. N/A Shipping Name ZINC OXIDE Hazard
Risk Phrases
Safety Phrases
4.3 Spills and Disposal
Spills
Clean up personnel should wear protective clothing and respiratory protection in dusty environments.
Ventilate area of leak or spill. Sweep up and containerise for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal.
Disposal
Whatever cannot be save for recovery should be managed in an appropriate and apporved 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.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Not considiered to be a fire hazard. Finely divide powder presents an explosion hazard. When heated to high temperatures, zinc oxide sublimes to produce toxic fumes. Has exploded when mixed with chlorinated rubber. Reacts violently with magnesium, linseed oil. Zinc oxide and magnesium canreact explosively when heated.
Extinguishing Media
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. Use any means suitable for extinguishing surrounding fire. 5 OTHER INFORMATION
Other Information
No data available
5.1 Contact Points
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The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
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