The nitroparaffins, nitromethane, nitropropane, etc. Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. 9.0 Physical and Chemical Properties 9.1 Characteristics 9.1.1 Appearance / Color / Physical state Fine, white powder 9.1.2 Odor Odorless 9.2 Important health, safety and environmental information 9.2.1 pH pH > 12 8.3. Give nothing to drink. Page 1 of 7. IARC (International Agency for Research on Cancer). 2005. Special Fire Fighting Procedures:Fire fighters should wear full protective clothing and self-contained breathing apparatus. supplier m-i drilling fluids uk ltd, pocra quay, footdee, aberdeen. Proposed thresholds may also be modified based on policy and other considerations as assessed during the public consultation period. Ulceration and scarring of skin are some of the most commonly observed hazards of NaOH. Calcium hydroxide SDS Safety Data Sheet for Calcium hydroxide 102047. Some potential for hazards to health or the environment. NIOSH: Pocket Guide to Chemical Hazards Components Type Value Form Calcium carbonate, TWA 5 mg/m3 Respirable. 1. fish kill) or not easily identifiable (e.g. H335 May cause respiratory irritation. Repeated or prolonged contact with skin may cause dermatitis. According to the National Enforcement and Emergencies Management Information System and Intelligence System (NEMISIS) database, hydrochloric acid and sulphuric acid were both on record as having a “moderate” impact on air, land and fresh water after a spill of 3 tonnes. safety data sheet lime (calcium hydroxide) 1 identification of the substance/preparation and company/undertaking product name lime (calcium hydroxide) synonyms, trade namescalcium hydroxide application ph modifier. benign, health . Dry skin. # EC# IUPAC Name WT % Calcium Hydroxide 1305-62-0 / 215-137-3 calcium dihydroxide 100 Refer to Section 16 for the full text of the GHS and H phrases and EUClassifications and R Phrases. Skin burns. You assume the entire risk of relying on this Information. Flash Point:N/A Flammable Limits:N/A Fire Extinguishing Media:Considered non-combustible. Even if the quantity of a substance in use is below the threshold quantity indicated in the Environmental Emergency Regulations, Environment Canada recommends that emergency planning be applied to this substance in order to minimize, or prevent, any impacts on humans or the environment in the event of a release of the substance. Repeated or prolonged inhalation of dust particles may cause effects on the lungs. form salts with inorganic bases such as CALCIUM HYDROXIDE. H318 Causes serious eye damage. No: N/A 1.PRODUCT IDENTIFICATION. Effects of short-term exposure Attacks many metals in the presence of water. Ketcheson K, Shrives J. 2011. Use media appropriate for surrounding fire. Calcium Hydroxide is harmful to aquatic environment at low concentrations. 8.2.2 Environmental exposure controls Avoid release into environment; calcium hydroxide may cause pH variation. After preliminary consultation, the proposed threshold for strong acids and bases has been increased to 3 tonnes with a concentration set at 0.1%. Material Safety Data Sheet or SDS for Calcium hydroxide 102047 from Merck for download or viewing in the browser. Washington (DC). Because calcium hydroxide, solution does not have an identified flash point (no flash point data were available during the data gathering process) and decomposes before reaching its boiling point (Genium, 2007), this substance does not have the possibility of a vapour cloud explosion. If not breathing, give artificial respiration. Unusual Fire and Explosion Hazards:Not combustible. CALCIUM HYDROXIDE can be found in 28 products. Bases are chemically similar to sodium hydroxide (NaOH) or sodium oxide (Na2O). 4. Therefore, no threshold is set for the inhalation toxicity to humans. 1.3 Details of the supplier of the safety data sheet Company : Central Drug House (P) Ltd 7/28 Vardaan House New Delhi-10002 INDIA Genium. This produces calcium oxide. Product name : Calcium Hydroxide CAS-No. This chemical is very corrosive, and it … Refer for medical attention. Human Health: substances that are toxic by inhalation, are carcinogenic, or are corrosive. Safety Data Sheet Calcium Hydroxide/Lime SDS Section 1. Roughness. Sweep spilled substance into covered containers. The solution in water is a medium strong base. supplier m-i drilling fluids uk ltd, pocra quay, footdee, aberdeen. UN proper shipping name : Corrosive liquid, basic inorganic, N.O.S. Transport hazard class(es) Hazard classification : 8 14.4. SECTION XIV - TRANSPORT INFORMATION SEA TRANSPORTATION: IMCO #: Not regulated UN #: Not regulated Substance(s) determined hazard: Not regulated Because calcium hydroxide, solution is not classified in any group of International Agency for Research on Cancer (IARC, 2014) or the U.S. Environmental Protection Agency (U.S. EPA, 2005), and because the substance does not have an identified half-life (no half-life data were available during the data gathering process), no threshold is set for the carcinogenicity of this substance. To determine if a substance is a candidate to be added to the Environmental Emergency Regulations, Environment Canada has developed a risk evaluation methodology based on the following hazard categories: For more information on the methodology for setting threshold quantities in the Environmental Emergency Regulations, please refer to Summary of Risk Evaluation Framework for Determining Quantity Thresholds and Concentrations for Substances under the Environmental Emergency Regulations. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. Use local exhaust or breathing protection. 4. calcium dihydroxide, calcium dihyrdroxide, calcium hydrate, calcium hydroxide, calcium hydroxide (ca(oh)2), hydrated lime, and lime water Cancer Cancer: Ingredients linked to cancer in government, industry or academic studies or assessments. U.S. EPA (U.S. Environmental Protection Agency). 58 / Monday, March 26, 2012 / Rules and Regulations 02/28/2015 EN (English) 3 First‐aid measures after inhalation : If breathed in, move person into fresh air. SAFETY DATA SHEET 1. Formula: Ca(OH)2 safety data sheet lime (calcium hydroxide) 1 identification of the substance/preparation and company/undertaking product name lime (calcium hydroxide) synonyms, trade namescalcium hydroxide application ph modifier. Calcium hydroxide SDS Safety Data Sheet for Calcium hydroxide 102047. Therefore, no threshold is set for the inhalation toxicity to humans. 2001. low . You assume the entire risk of relying on this Information. Following the risk evaluation of calcium hydroxide, solution and taking into consideration the quantities in use in Canada, Environment Canada recommends that this substance be proposed for addition to Schedule 1 of the Environmental Emergency Regulations under CEPA 1999 at a threshold quantity of 3 tonnes with a minimum concentration of 0.1% and at a pH ≥ 11.5. OSHA Table Z-1-A (29 CFR 1910.1000) (1989) CALCIUM HYDROXIDE - TWA 15 mg/m3 US. 2.3 Human Health Hazard: Inhalation Toxicity. Calcium hydroxide contains alkaline material potentially toxic to aquatic life at high concentrations. For enquiries, contact us. Reacts violently with acids. Likely hazards to health or the environment. Grade D. High Concern. ab11 5dq t -44 (0)1224-584336 f -44 (0)1224-576119 Bases are chemically similar to sodium hydroxide (NaOH) or sodium oxide (Na2O). * Breathing Calcium Hydroxide can irritate the nose, throat and lungs causing coughing, wheezing and/or shortness of breath. (Calcium hydroxide mixture) 14.3. The dry salts are explosive [Chem. In: Proceedings of the Thirty-third Arctic and Marine Oilspill Program Technical Seminar on Environmental Contamination and Response. FIRST-AID MEASURES Routes of Exposure First Aid Instructions Calcium hydroxide. Comparison of Threshold Quantities for Substances with Final AEGL-2 and IDLH Values under CEPA’s Environmental Emergency Regulations. Environmental exposure controls : Avoid release to the environment. CALCIUM HYDROXIDE TWA 5 mg/m3 US. FDA Calcium hydroxide is generally recognized as safe (GRAS) by FDA 21 CFR 184.1205. Dentsply Sirona Pty Ltd Chemwatch Hazard Alert Code: 2 Dycal Radiopaque Calcium Hydroxide - Base Paste Chemwatch: 4993-50 Version No: 2.1.1.1 Safety Data Sheet according to WHS and ADG requirements Issue Date: 27/06/2017 Print Date: 04/01/2018 S.GHS.AUS.EN SECTION 1 IDENTIFICATION OF THE SUBSTANCE / MIXTURE AND OF THE COMPANY / UNDERTAKING Calcium hydroxide . Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. The proposed threshold at 3 tonnes has been extended for bases as well. SPILLS Sweep up dry spillage where possible and minimize flushing with water. [Note: Readily absorbs CO2 from the air to form calcium carbonate.] Occupational Exposure Total dust. 1305-62-0 Calcium Hydroxide 39% Irritant (Xi) R 36 / 38 Skin irritation; 2 Eye irritation; 2 4.0 First Aid Measures 4.1 Special Instructions Show this safety data sheet to medical personnel. Safety Data Sheet Calcium Hydroxide/Lime SDS Section 1. Calcium hydrate, Caustic lime, Hydrated lime, Slaked lime White, odorless powder. Routes of exposure MATERIAL SAFETY DATA SHEET. Calcium Hydroxide (1305-62-0) DNEL DNEL 4 mg/m³ (Acute - local effects, inhalation) PNEC PNEC 0.49 mg/l (aqua, freshwater) 8.2. : 1. Risk Assessment Forum. HAZARD SUMMARY * Calcium Hydroxide can affect you when breathed in. Get medical attention in case of uncertainty. Synonyms: Calcium hydrate; Calcium Hydroxide or Slaked Lime CAS No. Implementation Guidelines for the Environmental Emergency Regulations 2011. 1305-62-0 Calcium Hydroxide 39% Irritant (Xi) R 36 / 38 Skin irritation; 2 Eye irritation; 2 4.0 First Aid Measures 4.1 Special Instructions Show this safety data sheet to medical personnel. Federal Register, 59(20). CALCIUM HYDROXIDE: ICSC: 0408: Calcium dihydroxide Calcium hydrate Hydrated lime Slaked lime: September 1997: CAS #: 1305-62-0 EC Number: 215-137-3 ACUTE HAZARDS PREVENTION FIRE FIGHTING; FIRE & EXPLOSION: Not combustible. Decomposes on heating. The new proposed threshold is set to 3 tonnes for the following reasons: A “moderate” classification in NEMISIS has some of the following characteristics: there is a risk to endangered or threatened species or their habitat, or a significant life threatening risk to other wildlife; the incident causes significant disruption of public services or property damage and community health is or will be threatened; impacts of the incident on the environment are significant (e.g. The inorganic compound is of ionic crystalline chemical character. The threshold quantity and its respective concentration will not be finalized until after public consultation. May also have poor ingredient disclosure. This product has been replaced by 239232|Sigma-Aldrich - Calcium hydroxide, ACS reagent, ≥95.0% | Ca(OH)2 Identification Product identifier Mississippi Lime Liquid Calcium Hydroxide (LCH) Other means of identification Product code Liquid Calcium Hydroxide, LCH, Liquid Calcium Hydroxide MP, LCH MP Industrial, Chemical, Construction, Environmental and Water Treatment applications of calcium ab11 5dq t -44 (0)1224-584336 f -44 (0)1224-576119 Tennessee. Solution . Calcium hydroxide-based preparations present minimal hazard in the quantities provided. news 30:2344 1952]. Calcium hydroxide, solution (CAS No. Health issue . The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. form salts with inorganic bases such as CALCIUM HYDROXIDE. Environmental hazards Marine pollutant #1 : NAP 14.6. The substance is irritating to the respiratory tract. 2010. Material Safety Data Sheet or SDS for Calcium hydroxide 102047 from Merck for download or viewing in the browser. OELs. SAFETY DATA SHEET (REGULATION (EC) n° 1907/2006 - REACH) Version 3.2 (04/03/2014) - Page 2/9 PRODUITS DENTAIRES SA Name : CALCIUM HYDROXIDE POWDER - ART.11025 Product identifiers : EC 215-137-3 HYDROXYDE DE CALCIUM Hazard statements : H315 Causes skin irritation. US DOT U.S. Dept. Washington (DC). © ILO and WHO 2017. FIRST-AID MEASURES Routes of Exposure First Aid Instructions In no event shall Supplier be responsible for damages of any nature whatsoever resulting Calcium dihydroxide is a … For example, the threshold will be compared to other provincial and federal legislation or voluntary programs that may already provide adequate management of the risk from an environmental emergency. In no event shall Supplier be responsible for damages of any nature whatsoever resulting The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Ecological Information. List of Regulated Toxic and Flammable Substances and Thresholds for Accidental Release Prevention. U.S. EPA (U.S. Environmental Protection Agency). They neutralize acids exothermically to … Get medical attention in case of uncertainty. Fresh air, rest. Therefore, no threshold is set for this substance as a result of its potential for flammability or combustibility. Calcium hydroxide is the exothermic product of calcium oxide and water, according to Darrell D. Ebbing and Steven D. Gammon's "General Chemistry." Calcium hydroxide has been used by dentists in the clinical practice for over a century [1]. 1994. Eng. COLOURLESS CRYSTALS OR WHITE POWDER. Level of Concern . Calcium hydroxide solutions can cause chemical burns. Calcium hydroxide. For more information regarding the determination of thresholds, please refer to the Implementation Guidelines for the Environmental Emergency Regulations 2011 (Environment Canada, 2011). Limewater is a saturated solution of calcium hydroxide, less than 0.02 M. IRRITANT. Calcium Hydroxide Hydrated Lime Slaked Lime SDS GHS, MSDS Sheet. Burning sensation. 31. The substance has a measured pH equal to or greater than 11.5, therefore a threshold of 3 tonnes applies. Print Share on: Evidence. Molecular mass: 74.1 Summary of Risk Evaluation Framework for Determining Quantity Thresholds and Concentrations for Substances under the Environmental Emergency Regulations, Implementation Guidelines for the Environmental Emergency Regulations 2011, Environment Canada. news 30:2344 1952]. Even a saturated solution of calcium hydroxide is so dilute that it is not classed as IRRITANT, despite pH = 12.4. Summary of Risk Evaluation Framework for Determining Quantity Thresholds and Concentrations for Substances under the Environmental Emergency Regulations set under the Canadian Environmental Protection Act, 1999 (CEPA 1999). 2007. Environment Canada. 1305-62-0) in use in Canada indicates that the substance exists in commerce. Government of Canada. This quantity for spills of 3 tonnes in NEMISIS is also the same as the quantity recommended by TDG for their ERAP for sulphuric acid, nitric acid, hydrobromic acid and perchloric acid (Environment Canada, 2015). Inhalation risk Appropriate engineering controls Appropriate engineering controls : Ensure good ventilation of the work station. Calcium dihydroxide is composed of one calcium cation and two hydroxide anions. OELs. Chemical dangers Because calcium hydroxide, solution does not have a vapour pressure greater than 10 mmHg (1.33 kPa) at 25°C (CHEMINFO, 2010), the substance does not have sufficient volatility to constitute an inhalation danger. Calcium hydroxide, solution is classified as beingpractically non-persistent in water according to our risk evaluation methodology (Environment Canada, 2015). One spill of sulfuric acid was identified as having a “major” impact at 4.5 tonnes. Environment Canada. Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 2014. Genium Group Inc. CAL5160. Refer for medical attention . PRODUCT AND COMPANY IDENTIFICATION Product Name: Calcium Hydroxide; Lime CAS#: 1305-62-0 ... environment, and for health and safety purposes. NIOSH: Pocket Guide to Chemical Hazards Components Type Value Form Calcium carbonate, TWA 5 mg/m3 Respirable. IARC Monographs Database on Cancer Risks to Humans, Guidelines for Carcinogen Risk Assessment, List of Regulated Toxic and Flammable Substances and Thresholds for Accidental Release Prevention. Hazard statement(s ) H315 Causes skin irritation. Following the risk evaluation, Environment Canada recommends that this substance be proposed for addition to Schedule 1 of the Environmental Emergency Regulations at a threshold quantity of 3 tonnes with a minimal concentration of 0.1% and at a pH ≥ 11.5. EUH070 Toxic by eye contact. At high pH value (see common ion effect ), its solubility drastically decreases. Medical observation is indicated. Managing Environmental Impact. They neutralize acids exothermically to … Wear safety goggles, face shield or eye protection in combination with breathing protection. with the financial assistance of the European Commission. Hazard classification & labelling Hazard classification and labelling. Calcium Hydroxide Safety Data Sheet according to Federal Register / Vol. Registered on December 8, 2011. H318 Causes serious eye damage. MSDS Sheet – Calcium Hydroxide. Contains Calcium Hydroxide 3. Calcium hydroxide is a white odourless powder with the chemical formula Ca(OH) 2 PROP 65 The new threshold has been harmonized with the Transportation of Dangerous Goods Regulations (TDG) for their Emergency Response Assistance Plan (ERAP) index of 3,000 liters or approximately 3 tonnes (Transport Canada, 2008). Document Number 94-1556. 77, No. However, limewater is usually made in schools by adding excess solid calcium hydroxide (or oxide) to water. Then store and dispose of according to local regulations. This methodology was not used because pH ≤ 2 or pH ≥ 11.5 are considered corrosive to aquatic life. CHEMINFO. You will not receive a reply. CDC - NIOSH Pocket Guide to Chemical Hazards - Calcium hydroxide Calcium Hydroxide CAS No 1305-62-0 MATERIAL SAFETY DATA SHEET SDS/MSDS. For additional information on toxicity from scientific journals or registration documents, see the "Additional Resources for Toxicity " section of the chemical detail page. 2011. Following the risk evaluation methodology developed under section 200 of CEPA 1999, the categories (flammability, combustibility, oxidizers, inhalation toxicity, aquatic toxicity, carcinogenicity, corrosiveness, pool fires) having the lowest scientific threshold will be compared against other risk management considerations. In case of fire in the surroundings, use appropriate extinguishing media. Remove contaminated clothes. Calcium hydroxide-based preparations present minimal hazard in the quantities provided. Indicates no available weight-of-the-evidence summary assessment. Indicates high toxicity in the given toxicological category. Fever, sneezing, runny nose, sore throat, and pneumonia are some of the severe consequences of coming in contact with this chemical. PREVENT DISPERSION OF DUST! A proposed threshold of 3 tonnes with a minimum concentration of 0.1% and at a pH ≥ 11.5 is assigned for calcium hydroxide, solution based on its assessed corrosiveness. In case of fire in the surroundings, use appropriate extinguishing media. Physical State; Appearance Guidelines for Carcinogen Risk Assessment. Contains Calcium Hydroxide 3. Tennessee. Packing group Packing group : III 14.5. CDC - NIOSH Pocket Guide to Chemical Hazards - Calcium hydroxide Registered on December 8, 2011, 2014. International Agency for Research on Cancer, World Health Organization. 2006. Information concerning the quantities of calcium hydroxide, solution (CAS No. Effects of long-term or repeated exposure of Transportation - Not Regulated. Limewater . COMPOSITION AND INFORMATION ON INGREDIENTS Hazardous Components C.A.S. 2010. 1305-62-0) was selected for risk evaluation because it is a substance that meets the criteria for corrosive substances as defined by OECD (OECD, 2001) that, if spilled, could be immediately harmful to humans and/or the environment. Environmental hazards Dangerous for the environment : No Marine pollutant : No Other information : No supplementary information available 14.6. Environmental Emergency Regulations, Canadian Environmental Protection Act, 1999. This produces flammable/explosive gas (hydrogen - see ICSC 0001). [Note: Readily absorbs CO2 from the air to form calcium carbonate.] The concentration at 0.1% will result in a pH ≤ 2 or pH ≥ 11.5 for strong bases or acids. In 1920, Herman introduced calcium hydroxide to dentistry as a pulp-capping ma-terial but today it is used widely in the field of endodontics [2] [3]. Cesium hydroxide, solution is not capable of causing a pool fire. Abdominal pain. Blisters. Redness. : 1305-62-0 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratorychemicals, Industrial & for professional use only. Decomposes at 580°CRelative density (water = 1): 2.2 Solubility in water: none. Vomiting. IDENTIFICATION Calcium Hydroxide is a soft, white, powdery material with a 3 Effective date : 12.14.2014 Page 2 of 7 Calcium Hydroxide, Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Pain. pp. At least some ingredient disclosure. EPA/630/P-03/001F. Physical: flammable and combustible or oxidizing substances, or those having a potential to cause vapour cloud explosions or pool fires. Mike Wye & Associates, Health & Safety September 2017 Page 2 of 13 Material Data Safety Sheet: Calcium Dihydroxide Version: September 2017 2 HAZARDS IDENTIFICATION 2.1 Classification of the substance 2.1.1 Classification according to Regulation (EC) 1272/2008 STOT Single Exp.3, Route of exposure: Inhalation Skin Irritation 2 Eye damage 1 The Environmental Emergency Regulations, developed under Part 8 of the Canadian Environmental Protection Act, CEPA), 1999 (Government of Canada, 2011) establishes a list of substances for which fixed facilities must notify Environment Canada that they store or use the substance on-site, by providing notices to Environment Canada, reporting when the substance is released into the environment, and developing an environmental emergency plan (E2 plan) for each substance stored or used at a fixed facility at or above specified threshold quantities. synthetic (CAS 471-34-1) 10 mg/m3 Total Calcium hydroxide (CAS TWA 5 mg/m3 1305-62-0) Biological limit values No biological exposure limits noted for the ingredient(s). Calcium hydroxide (CAS TWA 5 mg/m3 1305-62-0) US. The substance is corrosive to the eyes and skin. It has a strong base pH and is used for many purposes, often under its more common name, slaked lime. 843-861. One publication by the United States Environmental Protection … Rinse mouth. Environment Canada. # EC# IUPAC Name WT % Calcium Hydroxide 1305-62-0 / 215-137-3 calcium dihydroxide 100 Refer to Section 16 for the full text of the GHS and H phrases and EUClassifications and R Phrases. Ecological Toxicity: Toxicity to fish: LC50 - Clarias gariepinus - 33,884 mg/l - 96 h Toxicity to daphnia and other aquatic invertebrates: EC50 - Daphnia magna (Water flea) - 49,1 mg/l - 48 h (OECD Test Guideline 202) To minimize environmental impacts, many researchers and government agencies emphasize the importance of using smaller quantities of deicers to increase the efficiency of mechanical ice removal instead of melting ice completely in place and producing high volumes of deicer-saturated run off. Signal word Danger. Do NOT induce vomiting. OECD (Organisation for Economic Co-operation and Development). Abdominal cramps. Limits, Table Z1A (06 2008) CALCIUM HYDROXIDE - TWA 5 mg/m3 US. requires further investigation). COMPOSITION AND INFORMATION ON INGREDIENTS Hazardous Components C.A.S. Calcium hydrate, Caustic lime, Hydrated lime, Slaked lime White, odorless powder. Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. The nitroparaffins, nitromethane, nitropropane, etc. 2015. Environmental Directorate, Joint Meeting of the Chemicals Committee and the Working Party on Chemicals, Pesticides and Biotechnology, ENV/JM/MONO(2001)6. Refer for medical attention . * Contact can severely irritate and burn the skin and eyes with possible eye damage. : 1305-62-0 EINECS EC Number: 215-137-3. Calcium hydroxide (CAS TWA 5 mg/m3 1305-62-0) US. Product Identification. Record Number 10. Product Name: Hydrated Lime (Calcium Hydroxide) UN/MA#: N/A DOT Hazard Class: N/A TYPICAL CHEMICAL COMPOSITION At ambient temperature, calcium hydroxide ( portlandite) dissolves in pure water to produce an alkaline solution with a pH of about 12.4. 3 Effective date : 12.14.2014 Page 2 of 7 Calcium Hydroxide, Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com The dry salts are explosive [Chem. This behavior is relevant to cement pastes. Excessive dust generation creates a potential explosion hazard. synthetic (CAS 471-34-1) 10 mg/m3 Total Calcium hydroxide (CAS TWA 5 mg/m3 1305-62-0) Biological limit values No biological exposure limits noted for the ingredient(s). Be finalized until after public consultation also be modified based on policy and Other calcium hydroxide environmental hazards assessed! Salts with inorganic bases such as Calcium hydroxide or Slaked Lime form salts with inorganic bases such as Calcium Hydrated! Because pH ≤ 2 or pH ≥ 11.5 are Considered corrosive to life. And minimize flushing with water, World Health Organization Environmental hazards Dangerous for the environment over a century 1! Skin irritation it is not capable of causing a pool fire substance can be absorbed into the body by of., its solubility drastically decreases be reached quickly when dispersed for Calcium hydroxide 102047 from Merck for or... 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