HomeMy WebLinkAbout2000-01-06 Fly Ash Resource Center - Material Safety Data SheetRage I of 4
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Hazardous Nature: This product is potentially classified as hazardous depending on j ug isdiction and
use.
PRODUCT IDENTIFICATIO
Pazzolan, Fly Ash, Class F Fly Ash, Class C Fly Ash
Use
Supplementary cementitious material for concrete and concrete products. Also used in soil
stabilization and as a fine filler in asphalt and other products.
Hazardous Chem Code
Not Applicable
Poisons Schedule
Not Scheduled
Dangerous roods Class
Not Applicable
PHYSICAL DESCRIPTION 1 PROPERTIE
Appearance: Fine powder - light to dark grey or shades of brown or buff in color.
Boiling /Melting Point: belting point > 1400 o C
Vapour Pressure: Not applicable
Percent Volatiles: Not Applicable
Specific Gravity: 2.05 to 2.8
Flash Point: Not Applicable
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Flammability Limits: Not Applicable
Auto Ignition Temp. Not Applicable
Solubility In dater: Essentially insoluble. Some Class C fly ashes may have soluble sodium sulfate
(1 -8 %).
:Respirable Fraction: Approximately 20% - 40% of particles are below 7 micron in diameter (i.e. in
the respirable range).
Other :properties: Not Applicable
Ingredients
Chemical Entity Proportions
S ilica- Crystalline, as Quartz 1-5%
Mullite 1 - 5%
Note: Fly ash is a by product of coal combustion.. The material is composed primarily of coi n.plex
alumino silicate glass, mul.lite, hematite, magnetite spinel and quartz. The proportion of quartz
(crystalline sil ica) in the fly ash varies depending on the quartz content of the coal. Glass C fly ash
may have 1 -7% free CaO and calcium sulfate as well as calcium al urnino silicate glass.
Short Term Exposure
Swallowed: Unlikely under normal conditions of use. Swallowing fly ash may cause abdominal
discomfort.
Eyes: Irritating to eyes causing watering and redness.
Shin: Irritating to shin - can cause irritant /contact dermatitis from mechanical abrasion or alkaline
cornposition.(Class C fly ash).
Inhaled: Irritating to the nose, throat and respiratory tract causing coughing and sneezing.
Long 'berm Exposure
Swallowed: Not Applicable
Eyes: Not Applicable
Shin: Not Applicable
Inhaled: Repeated inhalation of dust containing crystalline silica can cause bronchitis, silicosis
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(scarring of the lung) and lung cancer. It may also increase the risk of scler oderma (a disease affecting
the connective tissue of the skin, joints, blood vessels and internal organs). Studies have shown that
smokin g increases the risk of bronchitis, silicosis and lung cancer~ in persons exposed to crystalline
silica. It is recommended that all storage and work areas should be smoke free zones. Inhalation of
high levels of fly ash dust may result in severe inflammation of the small airways of the lung and
asthma -like symptoms.
First Aid
Swallowed: Give plenty of water to drink, If any acute gastrointestinal distress, seek medical
attention.
Eyes: Flush thoroughly with flowing water for 15 minutes. If symptoms or irritation persist, seek:
medical attention.
Skin: wash thoroughly with mild soap and water. Some Class C fly ashes are quite hydraulic and
alkaline; contact with wet skin may result in burns.
Inhaled: Remove to fresh air, away from dusty area. If symptoms persist, seek medical attention.
Exposure Limits
Crystalline Silica (Quartz): 0.2 mg /m 3 TWA (time- weighted average) as respirable dust.
Dust (NOS - not otherwise specified): 10 mg /m 3 TWA as inspirable dust. However, where a state,
territory or local authority prescribes a lower exposure standard, the lower standard applies.
Recommendations. Keep exposure to dust as low as practicable. Respirable crystalline silica levels
should be kept below 0.1 rng /m 3 TWA, and respirable dust. below 5 mg /m 3 TWA.
Avoid generating dust. when handling fly ash, use local mechanical ventilation or extraction in areas
where dust could escape into the work environment. For bulk deliveries, closed pumping systems are
recommended. For handling of individual bags, follow instructions below if no local exhaust
ventilation is available. 'Work areas should be cleaned regularly by wet sweeping or vacuuming. If
generating dust cannot be avoided, follow personal protection recommendations below.
Personal Protection: Skin: wear loose comfortable clothing. Wash work clothes regularly. Apply
barrier cream to hands or wear cotton or light duty leather gloves or equivalent.
Eyes: Safety spectacles with side shields or safety goggles should be worn if dust likely to be
generated.
Respiratory: None required if engineering and handling controls are adequate. If dust is generated
gear a suitable particulate respirator . Use only respirators which bear the standards mark and are
fitted correctly. Dote that persons with facial hair will have difficulty in obtaining a satisfactory face
seal.
Ventilation Refer to Engineering Controls
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Flammability: Non-f .arnrnab e
Stora and Transport
Keep in a dry place. when handled pneumatically use standard dust filters on vehicles and silos.
Spills and Disposal: Follow above safety requirements under "Precautions for Use" and wet sweep or
vacuum dust with industrial vacuum cleaner. A fine water spray should be used to suppress dust
when sweeping. Collect in containers and dispose of as trade waste in accordance with local. authority
guidelines. Keep out of stormwater and sewer drains.
Fire /Explosion Hazard: Not flanunable. Does not decompose on heating.
Dote
The provision of this information should not be construed as a recommendation- to use this prodLICt in. violation of any
patent rights or in breach of any statute or regulation. users are advised to snake their own determination as to the
suitability of this information in. relation to their particular purposes and specific circ Lim stances, Each user should read this
MSDS and consider the information in the context of how the product will be handled and used in the workplace and in
conjunction with other substances or products. Individual responsibility must be taken as to proper use and handling of
product.
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