Calcium Hydroxide

MSDS Number 475-40

Section 1: Product and Company Information
Product Name(s) Bianco di San Giovanni, Lime White, Calcium Hydroxide
Product Number(s) 475-40S, 475-40B
Company Natural Pigments LLC
PO Box 112
Willits, CA 95490
United States of America
Technical Phone 707-459-9998
Fax 707-275-6063
Section 2: Composition / Information on Ingredients
Product Name Bianco di San Giovanni, Lime White, Calcium Hydroxide
Synonyms Calcium hydrate, slaked lime
Component Name CAS No. % Composition Range OSHA PEL mg/m3 ACGIH TLV mg/m3 NIOSH mg/m3
Chemical Formula     TWA STEL TWA STEL TWA STEL
Calcium Hydroxide
1305-62-0 80-100 151 52 5 N.E.3 N.E. N.E.
1) Total dust. 2) Respirable fraction. 3) N.E. = None Established
Section 3: Hazards Identification
Acute Health Effects Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath. Can cause chemical bronchitis.
Chronic Health Effects No information available
Aggravation of
Pre-existing Conditions
Persons with respiratory function may be more susceptible to the effects of this substance.
Acute Health Effects Gastric irritant. Ingestion may be followed by severe pain, vomiting, diarrhea, and collapse. If death does not occur in 24 hours, esophageal perforation may occur, as evidenced by fall in blood pressure and severe pain. A narrowing of the esophagus may occur weeks, months, or years after ingestion, making swallowing difficult.
Chronic Health Effects No information available
Aggravation of
Pre-existing Conditions
Medical conditions that may be aggravated by exposure: None anticipated.
Eye Contact
Acute Health Effects Corrosive. May produce severe irritation and pain. May induce ulcerations of the corneal epithelium. Can cause blindness.
Chronic Health Effects Prolonged or repeated contact may produce severe irritation.
Aggravation of
Pre-existing Conditions
Medical conditions that may be aggravated by exposure: None anticipated.
Skin Contact
Acute Health Effects Corrosive. May cause severe burns and blistering, depending on duration of contact.
Chronic Health Effects Prolonged or repeated skin contact may produce severe irritation or dermatitis.
Aggravation of
Pre-existing Conditions
Persons with pre-existing skin problems may be more susceptible to the effects of this substance.
  Health effects described above are based on published scientific information available for review, and evaluated on behalf of this product. Actual signs and symptoms experienced may vary due to conditions at the time of exposure.
Section 4: First Aid Measures
After Inhalation Remove to fresh air. If conscious, have victim clear nasal passages. Restore breathing (e.g., artificial respiration, CPR). Seek medical attention, as necessary, if symptoms develop or persist.
After Skin Contact In case of contact, wipe off excess material from skin then immediately flush skin with plenty of water for at least 15 minutes. Wash clothing before reuse. Call a physician, if irritation occurs.
After Eye Contact Holding eyelids open, do not allow victim to rub their eyes. Gently flush eyes for 15 minutes with large quantities of water. Seek medical attention if irritation develops or persists.
After Ingestion Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2 to 4 cupfuls of milk or water.
Section 5: Fire Fighting Measures
Fire Not considered to be a fire hazard. Not flammable.
Explosion Not considered to be an explosion hazard.
Flash Points Not applicable
Auto-Ignition Not applicable
Flammable Limits Not applicable
Extinguishing Media This material is not combustible and is not anticipated to react with commercially employed extinguishing media. Use appropriate extinguishing media for surrounding fire.
Special Fire Fighting Procedure As part of responding to any fire, firefighters should wear full turnout gear with a positive pressure demand mode Self-Contained Breathing Apparatus (SCBA). Contain all fire suppression run-off.
Hazardous Thermal
Decomposition Byproducts
Caustic fumes of calcium oxide form when heated to decomposition.
Fire/Explosion Hazards None known
Section 6: Accidental Release Measures
Spill Procedures Protect against identified hazards through use of prescribed personal protection equipment, proper work and hygiene practices. Limit foot and vehicular traffic to minimize mechanical agitation and dispersion. Employ a vacuum, equipped with HEPA (High Efficiency Particulate Air) filter, for clean-up of the spill material. If no vacuum is available, use a broom and shovel to collect excess powder in the area. Residual material should then be cleared, utilizing the process of wet sweeping, to avoid dust generation.
Containment Techniques This is a solid material and will not travel far from the spill location unless mechanically agitated. Therefore, no specific containment techniques are recommended outside of restricting access to the spill location. During spill cleanup, residual wash waters should be contained and collected for proper disposal.
Spill Response Equipment The following equipment is recommended for spill response:
• vacuum, equipped with a HEPA filter
• broom, wet mop
• dustpan, shovel, or scoop
• bags, drums, or sacks for collection

Note: Non-sparking equipment may be selected, based on location specific requirements and individual work site evaluations.
Personal Protective Equipment Employees should utilize the following protective equipment when performing spill response activities:
• gloves (rubber or leather)
• cotton or Tyvek coveralls
• chemical/safety impact goggles
• respiratory equipment recommended in Section 8
Section 7: Handling and Storage
Handling When handling this product, all personnel are directed to:
• Wear all specified elements of PPE, as directed by this document, or under location specific requirements, whichever is more conservative.
• Avoid creating dust, where possible.
Storage The following information provides the appropriate and recommended methods for safe storage and maintenance of product integrity:
• Store in a cool, dry, well-ventilated area.
• Product containers (paper bags, nylon bags, drums, etc.) are prone to physical damage. Care should be taken in storage and handling in order to prevent damage.
• Avoid contact with oxidizers and chemically active metals, since violent reactions may occur.
Section 8: Exposure Controls / Personal Protection
Engineering Controls If user operations generate dusts or fumes, use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits.
Respiratory Protection If the exposure limit is exceeded and engineering controls are not feasible, a full facepiece particulate respirator (NIOSH type N100 filters) may be worn for up to 50 times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. If oil particles (e.g. lubricants, cutting fluids. glycerine, etc.) are present, use a NIOSH type R or P filter. 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 impervious protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact.
Eye/Face Protection Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Work Hygiene Practices To control potential exposures, avoid creating dust. Always wear appropriate protective equipment when handling. To avoid skin contact, gloves (leather or rubber) should be worn when handling containers of this substance. Do not eat, drink, smoke or apply cosmetics while using/handling. Always wash hands and face after handling.
• Avoid direct skin contact when possible.
• Do not eat, drink, smoke, or perform other hand-to-mouth activities in product use or handling area.
• Wash thoroughly after handling this product.
Section 9: Physical and Chemical Properties
Appearance Physical State: Solid
Color: White
Form: Powder or Crystal
Odor Odorless
Molecular Weight 74.09
Ph Value 12.4 (saturated solution)
Boiling Point (at 760 mm Hg) Not applicable.
Melting Point 580° C. (1076° F.) (decomposes)
Flash Point Not applicable.
Flammability Not applicable.
Autoignition Temperature Not applicable.
Explosive Properties Not applicable.
Explosion Limits Not applicable.
Vapor Pressure (mm Hg) Not applicable.
Vapor Density (Air=1) Not applicable.
Solubility 0.185g/100ml at 20° C.
Specific Gravity (Water=1) 2.5
Viscosity Not applicable.
Evaporation Rate (BuAc=1) Not applicable.
Section 10: Stability and Reactivity
Stability Stable under ordinary conditions of use and storage. Readily absorbs carbon dioxide from air to form calcium carbonate.
Hazardous Decomposition Products Caustic fumes of calcium oxide form when heated to decomposition at 580° C. (1076° F.).
Hazardous Polymerization Will not occur.
Incompatibilities Violent reactions with maleic anhydride, nitroethane, nitromethane, nitroparaffins, nitropropane, phosphorus. As a strongly alkaline material, it is incompatible with acids.
Conditions to Avoid Incompatible materials and excessive temperatures.
Section 11: Toxicological Information
Occupationally Relevant Routes of Exposure
Inhalation No quantitative information found.
Ingestion Rat, LD50: 7340 mg/kg
Skin No quantitative information found.
Eye Rabbit, standard Draize: 10 mg, severe; investigated as a mutagen
Section 12: Ecological Information
Environmental Fate No information found.
Distribution and Persistence
in the Environment
No information found.
Bioaccumulation in
Aquatic Organisms
No information found.
Permissible Concentration
in Water
No information found.
Section 13: Disposal Considerations
Physical/Chemical Properties This material is a stable solid. Although not a listed RCRA hazardous waste, this material may exhibit one or more characteristics of a hazardous waste and require appropriate analysis to determine specific disposal requirements. Processing, use or contamination of this product may change the waste management options.
Recommended Disposal Method Where possible, re-blend spilled, unused, or off-specification materials with other suitable materials in support of waste minimization. Where this is not possible, dispose of material according to Federal (country-specific), state, and local requirements.
Empty Containers This product may be shipped in paper or nylon bags, steel drums, plastic or steel pails, or intermediate bulk containers. All residual material must be emptied and the containers recycled where possible. Where recycling is not possible, containers must be disposed of in accordance with Federal (country-specific), state, and local regulations. If questions exist about disposal, please contact the manufacturer for additional information.
Section 14: Transportation Information
Not regulated.
Section 15: Regulatory Information
--------\Chemical Inventory Status - Part 1\--------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Calcium Hydroxide (1305-62-0) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\--------------------------------
Ingredient Korea DSL NDSL Phil.
-------------------------------------------------- ----- --- ---- -----
Calcium Hydroxide (1305-62-0) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\---------------
-SARA 302- ------SARA 313-----
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- -------------
Calcium Hydroxide (1305-62-0) No No No No

--------\Federal, State & International Regulations - Part 2\---------------
Ingredient CERCLA 261.33 8(d)
----------------------------------------------- ------ ------ ------
Calcium Hydroxide (1305-62-0) No No No

Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes Fire: No Pressure: No
Reactivity: No (Pure / Solid)
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.
Section 16: Labeling Information
Product Name Lime White
Ingredients Calcium Hydroxide
Signal Word DANGER!
Precautions Do not get in eyes, on skin, or on clothing. Wash thoroughly after handling. Do not breathe dust. Keep container closed. Use only with adequate ventilation.
First Aid
In case of contact, wipe off excess material from skin then immediately flush eyes or skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Wash clothing before reuse. If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never give anything by mouth to an unconscious person. In all cases call a physician immediately.
Fire Instructions This material is not flammable; however, it may contribute fumes of calcium oxide if involved in a fire. Select fire extinguishment media for surrounding materials.
Spill or Leak
Wear appropriate protective equipment. Limit foot and vehicular traffic to minimize agitation and dispersion. Employ a vacuum (equipped with a HEPA filter), broom and shovel, and wet sweeping for spill clean-up. Avoid creating dust. Do not allow this product or run-off to reach waterways.
Handling and
Storage Instructions
Wear specified elements of personal protective equipment, as defined in the Material Safety Data Sheet (MSDS), or follow location specific instructions for handling this product. Store in a cool, dry, well-ventilated area. Specific instructions concerning directions for use and handling may be found in the MSDS or may be supplied by the manufacturer.
Section 17: Other Information
HMIS Ratings Health: 2 (Moderate)
Flammability: 0 (None)
Reactivity: 2 (Moderate)
Personal Protection: E
NFPA Ratings Health: 3 (High)
Flammability: 0 (None)
Reactivity: 0 (None)
Date 24 August 2007
Disclaimer The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. Natural Pigments, LLC shall not be held liable for any damage resulting from handling or from contact with the above product.

Copyright 2005-2007 Natural Pigments, LLC. License granted to make unlimited paper copies for internal use only.
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