III. HAZARDS IDENTIFICATION
HMIS Hazard Rating No. 2 (Moderate)
PRIMARY ROUTE OF ENTRY: INHALATION, DERMAL, EYES
EFFECTS OF OVER EXPOSURE:
Breathing dust may cause nose, throat or lung irritation and choking.
INHALATION:
May cause eye irritation, severe burns and damage to the cornea.
EYES:
May cause dry skin, redness, discomfort, irritation or severe burns. May
SKIN CONTACT:
produce allergic reaction. Thickening of the skin (scleroderma) may be
associated with exposure of high levels of crystalline silica.
No known information available.
SKIN ABSORPTION:
Ingestion of large amounts may cause intestinal distress.
INGESTION:
MASCOCRETE-MSDS
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Excessive inhalation of respirable crystalline silica dust may cause progressive,
CHRONIC:
disabling and sometimes fatal lung disease called silicosis. Symptoms include
cough, shortness of breath, wheezing, non-specific chest illness and reduced
pulmonary function.
The American Conference of Governmental Industrial hygenists classifies
crystalline silica, quartz, as a suspected human carcinogen. The International
Agency for Research on Cancer has determined that crystalline silica in the
form of quartz or cristobalite from occupational sources is carcinogenic in
humans (Group 1 ?carcinogenic to humans). Refer to IARC Monograph 68,
Silica and some Silicates and Organic Fibers ((published June 1997) in
conjunction with the use of these materials. The National Toxicology Program
classifies respirable crystalline silica as "known to be a human carcinogen".
IV. FIRST AID MEASURES
INHALATION: Remove victim from exposure to fresh air. Seek medical attention.
Rinse carefully with water. Seek medical attention.
EYES:
Wash thoroughly with soap and water. Use moisturizing creams for irritated skin. Seek
SKIN:
medical attention for burns or if irritation persists.
Do not induce vomiting, but drink plenty of water. Seek medical attention for discomfort.
INGESTION:
V. FIRE FIGHTING METHODS
HMIS Hazard Rating No. 0
Flash Point: Non Combustible METHOD: SETAFLASH
AUTO-IGNITION TEMP.: None
LIMITS OF FLAMMABILITY: Not combustible
EXTINGUISHING MEDIA: Use extinguishing media appropriate to the surrounding fire.
SPECIAL FIRE FIGHTING PROEDURES AND PRECAUTIONS: This product is not a fire hazard.
Self contained breathing apparatus is recommended to limit exposure to smoke from any combustion
source.
UNUSUAL FIRE AND EXPLOSION HAZARDS: None.
VI. ACCIDENTAL RELEASE MEASURES
ACTION TO TAKE FOR SPILLS/ LEAKS:Wind blown material may cause hazards described in SectionIII.
Use dry clean-up methods that do not disperse dust in the air. Avoid generating or breathing the dust.
WASTE DISPOSAL METHOD: Dispose of in accordance with federal, state and local regulations.
VII. HANDLING AND STORAGE
KEEP DRY
MASCOCRETE-MSDS
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VIII. EXPOSURE CONTROLS/PERSONAL PROTECTION
PERSONAL PROTECTION
RESPIRATORY: Wear a NIOSH approved respirator when dust may be above exposure limits.
EYE: Wear glasses or safety goggles to prevent contact with eyes. Wearing contact lenses when
using this product under dusty conditions is not recommended.
SKIN: Use rubber gloves and protective clothing to prevent skin contact.
ENVIRONMENTAL CONTROLS
Use exhaust ventilation to maintain dust levels below exposure limits in workplaces with poor
ventilation and dusty conditions.
IX. Physical And Chemical Properties
Water/Oil Distribution N/A
Coefficient:
Boiling Point: NONE, SOLID Solubility in Water: SLIGHT .1 ?1%
Percent Volatile: NONE, SOLID Specific Gravity: 3.5
Freezing Point : NONE, SOLID pH: 11 ?13 (IN WATER)
Vapor Pressure mmHg NOT Evaporation Rate: NOT MEASURABLE
@ 20o C MEASURABLE
Vapor Density >AIR Odor: NONE
Odor Threshold: N/A
Appearance: GRAY POWDER
N/AV = Not Available ca. = Approximate
X. STABILITY AND REACTIVITY
HMIS Hazard Rating No. 0
STABILITY: Product is stable, but must be kept dry. Reacts with water forming polymerized silicates and
calcium oxide.
CONDITIONS AND MATERIALS TO AVOID: Dissolves in hydrofluoric acid producing corrosive silicon
tetrafluoride gas. Silicates react with powerful oxidizers such as fluorine, chlorine trifluoride and oxygen
difluoride.
XI. TOXICITY INFORMATION
HMIS Hazard Rating No. 1 (SLIGHT)
PRIMARY ROUTE OF ENTRY: INHALATION, DERMAL, EYES
EFFECTS OF OVEREXPOSURE
May cause irritation to nose, lung and respiratory tract.
INHALATION:
May cause eye irritation, sever burns and damage to the cornea.
EYES:
May cause dry skin, irritation, and alkaline burns.
SKIN CONTACT:
MASCOCRETE-MSDS
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No information available.
SKIN ABSORPTION:
Not expected to be relevant route of entry.
INGESTION:
Respirable crystaline silica is a suspected cancer agent by NTP and IARC.
CHRONIC:
XII. ECOLOGICAL INFORMATION
Marine Pollutant: NL
(NL = Not Listed; P = Moderate; PP = Severe; ND = Not Determined)
XIII. DISPOSAL CONSIDERATIONS
Dispose in a manner which is compliant to Federal, State and Local regulations.
XV. REGULATORY INFORMATION
COMPONENTS ARE LISTED ON THE EPA/TSCA INVENTORY OF CHEMICAL SUBSTANCES
No reportable materials.
TITLE III SECTION 302:
Product contains Portland Cement (65997-15-1)
TITLE III SECTION 311/312:
which is considered a hazardous chemical and a
delayed health hazard.
No reportable materials.
TITLE III SECTION 313:
Crystalline Silica (14808-60-7) is considered to be a
CALIFORNIA PROPOSITION 65
carcinogen by the state of California.
XVI. OTHER INFORMATION
Information contained in this MSDS refers only to the specific material designated and does not relate to
any process or to use with any other materials. This information is based on data believed to be reliable as
of the date hereof. It is furnished without warranty of any kind express or implied. Since actual use is
beyond our control, no guarantee, express or implied, and no liability is assumed by MASONS SUPPLY
COMPANY in conjunction with the use of this information. Nothing herein is to be construed as a
recommendation to infringe any patents.