CALCIUM CARBONATE MSDS
Dyersburg, Tennessee & New Iberia, Louisiana
1. IDENTIFICATION
Chemical Name: Calcium Carbonate
Chemical Formula: N/A
Molecular Weight: N/A
Trade Name: Crushed Stone
DOT Identification No: None
Product Codes: ExCAL 10, ExCAL 40, ExCAL 100, ExCAL 200, ExCAL 325, ExCAL 400
2. PRODUCT AND COMPONENT DATA
Component(s)
Chemical Name CAS Registry No. %(Approx) Exposure Limits
Limestone* 1317-65-3 100 See section 6
*Composition varies naturally 鈥? typically contains quartz (crystalline silica).
14808-60-7 <1
3 .PHYSICAL DATA
Appearance and odor: Angular gray, white and tan particles ranging in size from powder to boulders. No odor.
Specific Gravity: 2.6 鈥? 2.75
Boiling point (At 1 Atm.): N/A
Vapor Density in Air (Air =1): N/A
Vapor Pressure (mmHg @20 o C): N/A
%Volatile, By Volume (@100 o F): 0%
Evaporation Rate (at 1 Atm and 25 E C;n-butyl acetate =1): 0
Solubility in Water: 0
4. REACTIVITY DATA
Stability: Stable
Conditions to Avoid: Avoid contact with incompatible materials (see below).
Incompatibility (materials to avoid): Contact with powerful oxidizing agents such as fluorine, boron trifluoride, chlorine trifluoride, manganese trifluoride, and
oxygen difluoride may cause fire and/or explosions. Silica dissolves readily in hydrofluoric acid producing a corrosive gas 鈥? silicon tetrafluoride.
Hazardous Decomposition Products: Limestone ignites on contact with fluorine and is incompatible with acids, alum, ammonium salts, and magnesium.
Silica reacts violently with powerful oxidizing agents such as fluorine, boron trifluoride, chlorine trifluoride, manganese trifluoride, and oxygen difluoride yielding
possible fire and/or
explosions. Silica dissolves readily in hydrofluoric acid producing a corrosive gas 鈥? silicon tetrafluoride.
Hazardous Polymerization: Not known to polymerize
5. FIRE AND EXPLOSION HAZARD DATA
Flash Point/Range: Not Determined Flash Point Method: Not Determined
Autoignition Temperature: Not Determined Flammability Limits in Air - Lower (%): Not Determined
Flammability Limits in Air - Upper (%): Not Determined Fire Extinguishing Media: All standard firefighting media.
Special Exposure Hazards: Not applicable. Special Protective Equipment for Fire Fighters: Not applicable.
NFPA Ratings: Health 1, Flammability 0, Reactivity 0 HMIS Ratings: Flammability 0, Reactivity 0, Health 1
Unusual Fire and Explosion Hazards: Contact with powerful oxidizing agents may cause fire and/or explosions (see section 4 of this MSDS).
6.TOXICITY AND FIRST AID
Exposure Limits (When exposure to this product and other chemicals is concurrent, the exposure limit must be defined in the workplace.) Unless specified
otherwise, limits are expressed as eight-hour time-weighted averages (TWA). Limits for cristobalite and tridymite (other forms of crystalline silica)are equal to
one-half of the limits for quartz.
Abbreviations: TLV =threshold limit value of the American Conference of Governmental Industrial Hygienists (ACGIH); MSHA PEL =permissible exposure limit
of the Mine Safety and Health Administration.(MSHA); OSHA PEL =permissible exposure limit of the Occupational Safety and Health Administration (OSHA);
mg/m 3 =milligrams of substance per cubic meter of air.
Limestone (Calcium Carbonate): ACHIH TLV 庐 ==10mg/m 3 ; OSHA PEL =15mg/m 3 (total dust); OSHA PEL= 5mg/m 3 (respirable fraction), MSHA PEL
=10mg/m 3 (total dust).
Other Particulates: 2001 ACGIH TLV 庐 =10mg/m 3 (inhalable/total particulate, not otherwise specified), 2001 ACGIH TLV 庐 =3 mg/m 3 (respirable particulate,
not otherwise specified); OSHA PEL =15mg/m 3 (total particulate, not otherwise regulated), OSHA PEL =5mg/m 3 (respirable particulate, not otherwise
regulated).
Respirable Crystalline Silica (SiO2 /quartz): ACGIH TLV 庐 ==0.05mg/m 3 ; MSHA and OSHA PEL = 10mg/m 3 梅 (%SiO2+2), for respirable dust containing
crystalline silica.
Total dust, respirable and nonrespirable: 1973 ACGIH TLV 庐 ==30mg/m 3 梅 (%quartz +3).
Total Dust: MSHA PEL =10 mg/m 3 (for nuisance particulates listed in Appendix E of the 1973 ACGIH TLV 庐
booklet).
Per ACGIH, adverse effects are not likely to occur in the workplace provided exposure levels do not exceed the appropriate TLVs & PELs. However, because of
the wide variation in individual susceptibility, lower exposure limits may be appropriate for some individuals including persons with pre-existing medical
conditions such as those
described below.
Medical Conditions Aggravated by Exposure: Inhaling respirable dust and/or crystalline silica may aggravate existing respiratory system disease(s)and/or
dysfunctions. Exposure to dust may aggravate existing skin and/or eye conditions.
Primary Route(s)of Exposure
X Inhalation _Skin _Ingestion
Acute Toxicity
Eye Contact: Direct contact with dust may cause irritation by mechanical abrasion.
Skin Contact: Direct contact may cause irritation by mechanical abrasion.
Skin Absorption: Not expected to be a significant exposure route.
Ingestion: Expected to be practically non-toxic. Ingestion of large amounts may cause gastrointestinal irritation and blockage.
Inhalation: Dusts may irritate the nose, throat, and respiratory tract by mechanical abrasion. Coughing, sneezing, and shortness of breath may occur following
exposures in excess of appropriate exposure limits.
15425 North Freeway 鈼? Suite 370 鈼? Houston 鈼? Texas 鈼? 77090 鈼? P: 281-872-4539 鈼? F: 281-872-8241 鈼? www.excalibar.com
First Aid
Eyes: Immediately flush eye(s) with plenty of clean water for at least 15 minutes, while holding the eyelids) open. Occasionally lift the eyelids)to ensure
thorough rinsing. Beyond flushing, do not attempt to remove material from the eye(s). Contact a physician if irritation persists or later develops.
Skin: Wash with soap and water. Contact a physician if irritation persists or later develops.
Ingestion: If person is conscious, give large quantity of water and induce vomiting; however, never attempt to make an unconscious person drink or vomit. Get
immediate medical attention.
Inhalation: Move to fresh air. Dust in throat and nasal passages should clear spontaneously. Contact a physician if irritation persists or later develops.
Chronic Toxicity
Prolonged and repeated inhalation of respirable crystalline silica-containing dust in excess of appropriate exposure limits has caused silicosis, a lung disease.
Not all individuals with silicosis will exhibit symptoms (signs)of the disease. However, silicosis can be progressive, and symptoms can appear at any time, even
years. after exposure has ceased. Symptoms of silicosis may include, but are not limited to, the following: shortness of breath; difficulty breathing with or without
exertion; coughing; diminished work capacity; diminished chest expansion; reduction of lung volume; right heart enlargement and/or failure. Smoking may
increase the risk of developing lung disorders, including emphysema and lung cancer. Persons with silicosis have an increased risk of
pulmonary tuberculosis infection. Respirable dust containing newly broken silica particles has been shown to be more hazardous to animals in laboratory tests
than respirable dust containing older silica particles of similar size. Respirable silica particles
which had aged for sixty days or more showed less lung injury in animals than equal exposures of respirable dust containing newly broken particles of silica.
There are reports in the literature suggesting that excessive crystalline silica exposure may be associated with adverse health effects involving the kidney,
scleroderma (thickening of the skin caused by swelling and thickening of fibrous tissue) and other autoimmune disorders. However, this evidence has been
obtained primarily
from case reports involving individuals working in high exposure situations or those who have already developed silicosis; and therefore, this evidence does not
conclusively prove a causal relationship between silica or silicosis and these adverse health effects. Several studies of persons with silicosis also indicate an
increased risk of developing lung cancer, a risk that increases with the duration of exposure. Some of these studies of silicotics do not account for lung cancer
confounders, especially smoking.
Limestone is not listed as a carcinogen by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP), or the
Occupational Safety and Health Administration (OSHA). In October 1996, an IARC Working Group re-assessing crystalline silica, a component of this product,
designated respirable crystalline silica as carcinogenic (Group 1). The NTP's Report on Carcinogens 9th edition, lists respirable
crystalline silica as a "known human carcinogen. "In year 2000, the American Conference of Governmental Industrial Hygienists (ACGIH) listed respirable
crystalline silica (quartz) as a suspected human carcinogen (A-2).
These classifications are based on sufficient evidence of carcinogenicity in certain experimental animals and on selected epidemiological studies of workers
exposed to crystalline silica.
7.PERSONAL PROTECTION AND CONTROLS
Respiratory Protection
For respirable quartz levels that exceed or are likely to exceed an 8-hr TWA of 0.1mg/m 3, a NIOSH approved dust respirator is recommended. For respirable
quartz levels that exceed or are likely to exceed an 8-hr TWA of 0.5mg/m 3 , a NIOSH approved HEPA filter respirator is recommended. If respirable quartz
levels exceed or are likely to exceed an 8-hr TWA of 5mg/m 3 , a NIOSH approved positive pressure, full face respirator or equivalent is recommended.
Respirator use must comply with applicable MSHA or OSHA standards, which include provisions for a user training program, respirator repair and cleaning,
respirator fit testing, and other requirements.
Ventilation
Local exhaust or general ventilation adequate to maintain exposures below appropriate exposure limits.
Skin Protection
See "Hygiene" section below.
Eye Protection
Safety glasses with side shields should be worn as minimum protection. Dust goggles should be worn when excessively (visible)dusty conditions are present or
are anticipated.
Hygiene
Wash dust-exposed skin with soap and water before eating, drinking, smoking, and using toilet facilities. Wash work clothes after each use.
Other Control Measures
Respirable dust and quartz levels should be monitored regularly. Dust and quartz levels in excess of appropriate exposure limits should be reduced by all
feasible engineering controls, including (but not limited to)wet suppression, ventilation, process enclosure, and enclosed employee work stations.
8.STORAGE AND HANDLING PRECAUTIONS
Respirable crystalline silica-containing dust may be generated during processing, handling, and storage. The personal protection and controls identified in
Section 7 of the MSDS should be used as appropriate. Do not store near food and beverages or smoking material.
9.SPILL,LEAK AND DISPOSAL PRACTICES
Steps To Be Taken In Case Material Is Released Or Spilled
The personal protection and controls identified in Section 7 of the MSDS should be used as appropriate. Spilled material, where dust can be generated, may
overexpose cleanup personnel to respirable crystalline silica-containing dust. Wetting of spilled material and/or use of respiratory protective equipment may be
necessary. Do not dry sweep spilled material. Prevent spilled materials from inadvertently entering streams,
drains, or sewers.
Waste Disposal Method
Pick up and reuse clean materials. Dispose of waste materials only in accordance with applicable federal, state, and local laws and regulations.
10. TRANSPORTATION
DOT Hazard Classification: None
Placard Required: None
Label Required: Label as required by the OSHA Hazard Communication Standard [29 CFR 1910.1200 (f) and applicable state and local laws and regulations.
For Further Information Contact:
Excalibar Minerals Inc.
Risk Manager
15425 North Freeway
Houston, TX 77090
281-872-3732
Date of Revision: 11/2005
For Emergency Information Call: 281-872-3732 (24 hours)
NOTICE: Excalibar Minerals Inc. believes the information contained herein is accurate; however, Excalibar Minerals Inc. makes no guarantees with respect to
such accuracy and assumes no liability in connection with the use of the information contained herein by any party. The provision of the information contained
herein is not intended to be and should not be construed as legal advice or as ensuring compliance with any federal, state or local laws and regulations. Any
party using this product should review all such laws, rules or regulations prior to use.
NO WARRANTY IS MADE, EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE.
15425 North Freeway 鈼? Suite 370 鈼? Houston 鈼? Texas 鈼? 77090 鈼? P: 281-872-4539 鈼? F: 281-872-8241 鈼? www.excalibar.com
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