Hydrated Lime or Slaked Lime or Calcium Hydroxide SDS MSDS of Manufacturers & Exporters
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Hydrated Lime or Slaked Lime or Calcium Hydroxide CAS Number 1305-62-0
Calcium Hydroxide SDS, Safety Data Sheet
MSDS, Material Safety Data Sheet 01-July-22
1. Product Identification
Product Name & Other Names: Calcium hydroxide or Slaked lime or Calcium hydrate or Hydrated lime.
CAS No.: 1305-62-0
EINECS EC Number: 215-137-3
Molecular Weight: 74.09
Chemical Formula: Ca(OH)2
Relevant uses and uses advised against (if any): Laboratory and Industrial Manufacturing.
Suppliers: As per letterhead.
2. Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008
Skin corrosion/irritation Category (H315)
Serious eye damage/eye irritation Category 1 (H318)
Acute toxicity, inhalation Category 4 (H332)
Specific target organ toxicity - single exposure, respiratory (Category 3) (H335)
Hazardous to the aquatic environment, acute hazard Category 3 (H402)
Labeling according to GHS & Regulation (EC) No 1272/2008
GHS Label Elements
Corrosive |
Signal Words: Danger
Hazard Statements:
H315: Causes skin irritation.
H318: Causes serious eye damage.
H332: Harmful if inhaled.
H335: May cause respiratory irritation.
H402: Harmful to aquatic life.
Precautionary Statements:
P260: Do not breathe dust/fume/gas/mist/vapors/spray.
P264: Wash --- thoroughly after handling.
P262: Do not get in eyes, on skin, or on clothing.
P271: Use only outdoors or in a well-ventilated area.
P273: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P360: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P362: Take off contaminated clothing and wash before reuse.
P302+352: IF ON SKIN: Wash with soap and water.
P304+340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing.
P314: Get Medical advice/attention if you feel unwell.
P337+P313 If eye irritation persists: Get medical advice/ attention.
3. Composition/Information on Ingredients
Product Name & Other Names: Calcium hydroxide or Slaked lime or Calcium hydrate or Hydrated lime.
CAS No.: 1305-62-0
EINECS EC Number: 215-137-3
4. First Aid Measures
Always seek medical advice after the first aid treatment.
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Call a physician immediately.
Ingestion: DO NOT INDUCE VOMITING. Give large quantities of water. Never give anything by mouth to an unconscious person. Call a physician immediately.
Skin Contact: In case of contact with Calcium Hydroxide or Slaked Lime, wipe off excess material from skin then immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Wash clothing before reuse. Call a physician immediately.
Eye Contact: Immediately flush eyes with gentle but large stream of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Call a physician immediately.
5. Fire Fighting Measures
Fire: Not considered to be a fire hazard.
Fire Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide. Use any means suitable for extinguishing surrounding fire.
Extinguishing Media Not recommended: None specified.
Special hazards arising from the substance or mixture: Calcium oxide.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At high temperatures under fire conditions, it may produce toxic or irritating fumes. Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used. Uninvolved persons should evacuate to a safe place.
6. Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Ventilate area of leak or spill. Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Restrict unprotected personnel from the area. Prevent any contact with hot surfaces. Do not approach facing the wind. Do not touch the spilled material.
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment cleanup procedures and Storage:
Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g., sand, earth, diatomaceous earth, vermiculite). Vacuum or sweep-up and remove to an approved disposal container. Use method that does not generate dust. Do not flush caustic residues to the sewer. Carefully pick up solid with minimum of dusting and collect in metal container with covers with disposal.
7. Handling and Storage
Precautions for safe handling: Apply according to good manufacturing and industrial hygiene practices. Ensure proper ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Prevent any contact with hot surfaces.
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid contact with skin and eyes. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like strong oxidizing agents and acids. Avoid maleic anhydride, nitro ethane, nitro methane, nitro paraffin, nitro propane, phosphorus.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits: -OSHA Permissible Exposure Limit (PEL):
15 mg/m3 (total dust), 5 mg/m3 (respirable fraction)
-ACGIH Threshold Limit Value (TLV): 5 mg/m3
CALCIUM HYDROXIDE (LIME) WEL (Workplace Exposure Limit) 5 mg/m3
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne Exposure Limits.
Personal Respirators (NIOSH Approved): If the exposure limit is exceeded and engineering controls are not feasible, a full face piece 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. glycerin, 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-face piece positive-pressure, air-supplied respirator.
Skin Protection: Wear impervious protective clothing, including boots, gloves, lab coat, apron, or coveralls, as appropriate, to prevent skin contact.
Eye 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.
Other Control Measures: Maintain good housekeeping in work area. Dust deposits on floors and other surfaces may pick up moisture and cause the surfaces to become slippery and present safety hazards. Handle in accordance with good industrial hygiene and safety practice. Wash hands after handling.
9. Physical and Chemical Properties
Appearance: Calcium Hydroxide or Slaked Lime white crystals or powder.
Odor: Odorless.
Odor threshold: Not available.
pH: 12.4 (saturated solution)
Relative density: around 2.24
Boiling Point: Decomposes.
Melting Point: 580C (1076F)
Flash point: Not available.
Auto-ignition temperature: No information found.
Decomposition temperature: No information found.
Upper/lower flammability or explosive limits: No information found.
Vapor pressure: No information found.
Vapor density: No information found.
Evaporation rate: No information found.
Flammability (solid, gas): No information found.
Partition coefficient: n-octanol/water: No information found.
Solubility: 0.185 g/100 cc water @ 0C.
Viscosity: No information found.
Molecular Weight: 74.09
Chemical Formula: Ca(OH)2.
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: Decomposition (580C; 1076F) to form Calcium Oxide.
Hazardous Polymerization: Will not occur.
Incompatibilities: Violent reactions with maleic anhydride, nitro ethane, nitro methane, nitro paraffin, nitro propane, phosphorus. As a strongly alkaline material, it is incompatible with acids.
11. Toxicological Information
Oral Rat LD50: 7340 mg/kg; eye rabbit, Standard Draize, 10 mg, severe.
Carcinogenic Effects: Not a reported carcinogen by IARC, NTP, ACGIH, OSHA.
Mutagenic Effects: Investigated as a mutagen.
Teratogenic Effects: No information found.
Developmental Toxicity: No information found.
Reproductive Effects: No information found.
12. Ecological Information
LD50 Oral - Rat - female: > 2.000 mg/kg.
LC50 Inhalation - Rat - male and female - 4 h: > 6,04 mg/l
LD50 Dermal - Rabbit - male and female: > 2.500 mg/kg
Persistence and Degradability: Unlikely to persist.
Mobility: Likely to be mobile.
Bioaccumulation/ Accumulation: Not expected to significantly bio accumulate.
Results of PBT and vPvB assessment: No data available for assessment.
13. Disposal Considerations
Although not a listed RCRA hazardous waste, Calcium Hydroxide or Slaked Lime may exhibit one or more characteristics of a hazardous waste and require appropriate analysis to determine specific disposal requirements.
14. Transport Information
Land Transport DOT USA, TDG Canada & ADR/RID Europe: Not controlled.
Sea Transport IMDG/IMO: Not controlled.
Air Transport IATA/ICAO: Not controlled.
15. Regulatory Information
USA:
California Proposition 65: Not listed.
SARA 311/312: Acute health hazard. See section 2.
Section 16 - Additional Information
DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources, and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules, or insurance requirements applicable. This SDS MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a professionally trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. This shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship. In no case shall our company be liable to loss or damages by the product user.
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