Calcium Hydroxide Safety Data Sheet (SDS)
SDS #: 199
Revision Date: June 24, 2015
Calcium Hydroxide
Flinn Scientific, Inc. P.O. Box 219, Batavia, IL 60510 (800) 452-1261 Chemtrec Emergency Phone Number: (800) 424-9565
Signal Word
DANGER
Hazard class: Skin corrosion or irritation (Category 2). Causes skin irritation (H315).
Hazard class: Serious eye damage (Category 1). Causes serious eye damage (H318).
Hazard class: Specific target organ toxicity, single exposure; respiratory tract irritation (Category 3). May cause respiratory irritation (H335). Avoid breathing dust or fumes (P261).
Component Name |
CAS Number |
Formula |
Formula Weight |
Concentration |
Calcium hydroxide
Synonyms: Slaked lime; Calcium hydrate
|
1305-62-0 |
Ca(OH)2 |
74.1 |
|
Immediately call a POISON CENTER or physician if you feel unwell (P310). If inhaled: Remove victim to fresh air and keep at rest in a position comfortable for breathing (P304+P340). If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do so. Continue rinsing (P305+P351+P338). If eye irritation persists eyes: Get medical advice or attention (P337+P313). If on skin: Wash with plenty of water (P302+P352). If skin irritation occurs: Get medical advice or attention (P332+P313). If swallowed: Rinse mouth. Call a POISON CENTER or physician if you feel unwell.
Nonflammable, noncombustible solid. When heated to decomposition, may emit toxic fumes. In case of fire: Use a tri-class dry chemical fire extinguisher.
NFPA Code
None established
Sweep up the spill, place in a sealed bag or container, and dispose. Ventilate area and wash spill site after material pickup is complete. See Sections 8 and 13 for further information.
Flinn Suggested Chemical Storage Pattern: Inorganic #4. Store with hydroxides, oxides, silicates and carbonates. Store in a cool, dry place. Store in a Flinn Chem-Saf™ bag. Keep container tightly closed (P233). Use only in a hood or well-ventilated area (P271).
Wear protective gloves, protective clothing, and eye protection (P280). Wash hands thoroughly after handling (P264). Use only in a hood or well-ventilated area (P271). Exposure guidelines: PEL 15 mg/m3 (as total dust) (OSHA); TLV 5 mg/m3 (ACGIH)
White powder. Odorless. Soluble: Acids and some organic liquids. Slightly in water.
Melting point: Loses water at 580 °C pH of water solution (25%) 12.4. Specific gravity: 2.34
Avoid contact with strong acids, maleic anhydride, and nitro compounds. Shelf life: Fair to poor. Absorbs carbon dioxide from air. See Section 7 for further information.
Acute effects: irritation eyes, skin, upper respiratory system; eye, skin burns; skin vesiculation; cough, bronchitis, pneumonitis Chronic effects: N.A. Target organs: Eyes, skin and respiratory system
ORL-RAT LD50: 7340 mg/kg IHL-RAT LC50: N.A. SKN-RBT LD50: N.A.
Please review all federal, state and local regulations that may apply before proceeding. Flinn Suggested Disposal Method #10 is one option.
Shipping name: Not regulated. Hazard class: N/A. UN number: N/A.
TSCA-listed, EINECS-listed (215-137-3), RCRA code D002.
This Safety Data Sheet (SDS) is for guidance and is based upon information and tests believed to be reliable. Flinn Scientific, Inc. makes no guarantee of the accuracy or
completeness of the data and shall not be liable for any damages relating thereto. The data is offered solely for your consideration, investigation, and verification. The
data should not be confused with local, state, federal or insurance mandates, regulations, or requirements and CONSTITUTE NO WARRANTY. Any use of this data and
information must be determined by the science instructor to be in accordance with applicable local, state or federal laws and regulations. The conditions or methods of
handling, storage, use and disposal of the product(s) described are beyond the control of Flinn Scientific, Inc. and may be beyond our knowledge. FOR THIS AND OTHER
REASONS, WE DO NOT ASSUME RESPONSIBILITY AND EXPRESSLY DISCLAIM LIABILITY FOR LOSS, DAMAGE OR EXPENSE ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE HANDLING, STORAGE, USE OR DISPOSAL OF THIS PRODUCT(S).
Consult your copy of the Flinn Science Catalog/Reference Manual for additional information about laboratory chemicals.
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