| Product Name: | Calcium Carbide Lime |
| Chemical Name: | Calcium Hydroxide |
| Formula: | Ca(OH)2 |
| Chemical Family: | Metal Hydroxide |
| Use: | arious chemical and industrial uses such as pH control, industrial water and sewage treatment, stabilization and agricultural. |
| Synonyms: | Carbide sludge, generator slurry, lime slurry, carbide lime, lime sludge, lime hydrate, calcium hydrate, hydrated lime, lime water, slaked lime. |
| NFPA Fire: | 0 |
| NFPA Health: | 1 |
| NFPA Reactivity: | 0 |
| NFPA Special Hazard: | |
| HMIS Fire: | 0 |
| HMIS Health: | 1 |
| HMIS Reactivity: | 0 |
| Mixture: | Yes |
| Acute: | No |
| Chronic: | No |
| Fire: | No |
| Reactive: | No |
| Sudden Release Pressure: | No |
| Ingredients – Composition Information |
| Component: | Calcium hydroxide Calcium carbonate |
| CAS No. | 1305-62-0 1317-65-3 |
| Percent (by weight) | 92.5 92.5 |
| 1.8 1.8 |
| ACGIH – STEL | 5 mg/m3 10 mg/m3 |
| Emergency Overview |
| Danger: | May cause skin and eye irritation and burns. |
| Potential Health Effects Information |
| Inhalation: | Irritating to respiratory tract. Experienced as nausea, vomiting, cough, excess sputum, and chest discomfort. May cause pulmonary edema. |
| Eye: | Exposure may cause severe irritation, experienced as pain, excess tearing, conjunctival edema and hemorrhage, corneal edema and opacification. |
| Skin: | Exposure may cause irritation, seen as redness, with possible swelling |
| Ingestion: | Exposure can cause burns to mouth, throat, and digestive tract. |
| Chronic Effects: | None established. |
| Medical Conditions Aggravated By Overexposure | Inhalation may aggravate asthma and inflammatory or fibrotic pulmonary disease. |
| Carcinogenicity: | Calcium hydroxide is not listed by NTP, OSHA or IARC. |
| First Aid Measures |
| Inhalation: | Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get immediate medical attention |
| Eye: | Immediately flush with plenty of water and continue flushing for at least fifteen minutes. It may be necessary to physically remove solid particles with a swab. See a physician, preferably an ophthalmologist, immediately. |
| Skin: | Remove contaminated clothing. Wash skin twice with soap and water. Wash clothing before reuse. |
| Ingestion: | Give two glasses of water. Do not induce vomiting. Call a physician. |
| Notes To Physician: | Use of acidics to neutralize swallowed contents is contraindicated. Use of an EDTA (ethylenediamine tetraacetic acid) solution for rinsing the eyes may help to remove solid particles of the material and relieve some corneal opacification |
| Fire Fighting Measures |
| Flash Point: | Not applicable |
| Auto ignition: | Not applicable |
| Flammable Limits – Lower: | Not applicable |
| Flammable Limits – Upper: | Not applicable |
| Extinguishing Media: | Calcium hydroxide cannot catch fire. |
| Fire Fighting Instructions: | None |
| Fire And Explosion Hazards | This material is a co-product from acetylene generation. A limited amount of acetylene temporarily remains in solution in the carbide lime slurry at the time of discharge from the generation process. With subsequent agitation from handling and retention in open vessels, the acetylene evolves from solution. A combustible gas mixture could possibly form as a result of the acetylene released into the surrounding air. Acetylene is an extremely flammable gas, which forms explosive mixtures with air and oxidizing agents. |
| Hazardous Combustion Products: | None known. |
| Sensitivity To Static Discharge: Not applicable. |
| Sensitivity To Mechanical Impact: | Not applicable. |
| Handling and Storage |
| Storage: | Store in a clean, ventilated area. Isolate incompatible materials. Post “NO SMOKING” or “NO OPEN FLAMES” signs. Accumulations of acetylene after its release from the slurry, or from unreacted carbide which continues to generate acetylene, can be ignited by any ignition source. All electrical equipment used in or around carbide lime handling or storage areas should comply with the requirements of the National Electrical Codes. |
| Handling: | Consumption of food or beverages should be prohibited in the work area. Access to storage and handling areas should be limited to trained authorized, personnel only. Maintenance in carbide lime areas should only be started after the atmosphere has been checked to ensure that explosive conditions do not exist |
| When Used In Welding Or Cutting: | Read and understand the manufacturer’s instructions and the precautionary label on the products. See American National Standard Institute (ANSI) Z49.1 Safety in Welding and Cutting published by the American Welding Society, P.O. Box 351040, Miami, Florida 33135 and National Fire protection Association (NFPA) 51 Oxygen Fuel Gas Welding and Cutting. |
| Exposure Control – Personal Protection |
| Engineering Controls: |
| Ventilation: | Use local exhaust and/or forced ventilation to reduce dust concentrations, if any, to below the exposure limit. |
| Physical and Chemical Properties |
| Physical State: | Solid or Liquid |
| Color: | White-gray |
| Odor: | Odorless, dust inhalation may be irritating. Slightly bitter, alkaline taste. There maybe a slight garlic-like odor present in fresh carbide lime hydride due to minute amounts of dissolved acetylene. The odor dissipates quickly when exposed to air |
| Molecular Weight: | 74.1 |
| Boiling Point: | 1076°F (580°C) Disassociates to form water and calcium oxide. |
| Specific Gravity: | 2.24 |
| Freezing/Melting Point: | 4658°F (2570°C) for calcium oxide. |
| Vapor Pressure: | Not applicable |
| Vapor Density: | Not applicable |
| Water Solubility: | .185g/100 cc water |
| Expansion Ratio: | Not Applicable |
| pH: | 12.454 @ 25°C (77°F) |
| Odor Threshold: | Not applicable |
| Evaporation Rate: | Not Applicable |
| Coefficient Of Water/Oil Distribution: | Not applicable |
| Stability and Reactivity |
| Chemical Stability: | Stable |
| Conditions To Avoid: | None currently known. |
| Incompatibility With Other Materials: | Acidic material, organic nitro compounds, maleic anhydride, phosphorus, and copper. |
| Hazardous Decomposition Products: | Calcium oxide (formed when heated above 1076°F (580°C)). |
| Hazardous Polymerization: | Will not occur |
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| Disposal Considerations |
| Waste Disposal Method: | Recovered lime can be collected and reused for many applications such as water treatment, road stabilization, and acid neutralization. When disposal becomes necessary, dispose in accordance with federal, state, and local government regulations. Consult environmental regulatory agencies for guidance on acceptable disposal practices.Carbide Lime Data Sheet| Product Name: | Calcium Carbide Lime | | Chemical Name: | Calcium Hydroxide | | Formula: | Ca(OH)2 | | Chemical Family: | Metal Hydroxide | | Use: | arious chemical and industrial uses such as pH control, industrial water and sewage treatment, stabilization and agricultural. | | Synonyms: | Carbide sludge, generator slurry, lime slurry, carbide lime, lime sludge, lime hydrate, calcium hydrate, hydrated lime, lime water, slaked lime. | | NFPA Fire: | 0 | | NFPA Health: | 1 | | NFPA Reactivity: | 0 | | NFPA Special Hazard: | | | HMIS Fire: | 0 | | HMIS Health: | 1 | | HMIS Reactivity: | 0 | | Mixture: | Yes | | Acute: | No | | Chronic: | No | | Fire: | No | | Reactive: | No | | Sudden Release Pressure: | No | | Ingredients – Composition Information | | Component: | Calcium hydroxide Calcium carbonate | | CAS No. | 1305-62-0 1317-65-3 | | Percent (by weight) | 92.5 92.5 | | 1.8 1.8 | | ACGIH – STEL | 5 mg/m3 10 mg/m3 | | Emergency Overview | | Danger: | May cause skin and eye irritation and burns. | | Potential Health Effects Information | | Inhalation: | Irritating to respiratory tract. Experienced as nausea, vomiting, cough, excess sputum, and chest discomfort. May cause pulmonary edema. | | Eye: | Exposure may cause severe irritation, experienced as pain, excess tearing, conjunctival edema and hemorrhage, corneal edema and opacification. | | Skin: | Exposure may cause irritation, seen as redness, with possible swelling | | Ingestion: | Exposure can cause burns to mouth, throat, and digestive tract. | | Chronic Effects: | None established. | | Medical Conditions Aggravated By Overexposure | Inhalation may aggravate asthma and inflammatory or fibrotic pulmonary disease. | | Carcinogenicity: | Calcium hydroxide is not listed by NTP, OSHA or IARC. | | First Aid Measures | | Inhalation: | Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get immediate medical attention | | Eye: | Immediately flush with plenty of water and continue flushing for at least fifteen minutes. It may be necessary to physically remove solid particles with a swab. See a physician, preferably an ophthalmologist, immediately. | | Skin: | Remove contaminated clothing. Wash skin twice with soap and water. Wash clothing before reuse. | | Ingestion: | Give two glasses of water. Do not induce vomiting. Call a physician. | | Notes To Physician: | Use of acidics to neutralize swallowed contents is contraindicated. Use of an EDTA (ethylenediamine tetraacetic acid) solution for rinsing the eyes may help to remove solid particles of the material and relieve some corneal opacification | | Fire Fighting Measures | | Flash Point: | Not applicable | | Auto ignition: | Not applicable | | Flammable Limits – Lower: | Not applicable | | Flammable Limits – Upper: | Not applicable | | Extinguishing Media: | Calcium hydroxide cannot catch fire. | | Fire Fighting Instructions: | None | | Fire And Explosion Hazards | This material is a co-product from acetylene generation. A limited amount of acetylene temporarily remains in solution in the carbide lime slurry at the time of discharge from the generation process. With subsequent agitation from handling and retention in open vessels, the acetylene evolves from solution. A combustible gas mixture could possibly form as a result of the acetylene released into the surrounding air. Acetylene is an extremely flammable gas, which forms explosive mixtures with air and oxidizing agents. | | Hazardous Combustion Products: | None known. | | Sensitivity To Static Discharge: Not applicable. | | Sensitivity To Mechanical Impact: | Not applicable. | | Handling and Storage | | Storage: | Store in a clean, ventilated area. Isolate incompatible materials. Post “NO SMOKING” or “NO OPEN FLAMES” signs. Accumulations of acetylene after its release from the slurry, or from unreacted carbide which continues to generate acetylene, can be ignited by any ignition source. All electrical equipment used in or around carbide lime handling or storage areas should comply with the requirements of the National Electrical Codes. | | Handling: | Consumption of food or beverages should be prohibited in the work area. Access to storage and handling areas should be limited to trained authorized, personnel only. Maintenance in carbide lime areas should only be started after the atmosphere has been checked to ensure that explosive conditions do not exist | | When Used In Welding Or Cutting: | Read and understand the manufacturer’s instructions and the precautionary label on the products. See American National Standard Institute (ANSI) Z49.1 Safety in Welding and Cutting published by the American Welding Society, P.O. Box 351040, Miami, Florida 33135 and National Fire protection Association (NFPA) 51 Oxygen Fuel Gas Welding and Cutting. | | Exposure Control – Personal Protection | | Engineering Controls: | | Ventilation: | Use local exhaust and/or forced ventilation to reduce dust concentrations, if any, to below the exposure limit. | | Physical and Chemical Properties | | Physical State: | Solid or Liquid | | Color: | White-gray | | Odor: | Odorless, dust inhalation may be irritating. Slightly bitter, alkaline taste. There maybe a slight garlic-like odor present in fresh carbide lime hydride due to minute amounts of dissolved acetylene. The odor dissipates quickly when exposed to air | | Molecular Weight: | 74.1 | | Boiling Point: | 1076°F (580°C) Disassociates to form water and calcium oxide. | | Specific Gravity: | 2.24 | | Freezing/Melting Point: | 4658°F (2570°C) for calcium oxide. | | Vapor Pressure: | Not applicable | | Vapor Density: | Not applicable | | Water Solubility: | .185g/100 cc water | | Expansion Ratio: | Not Applicable | | pH: | 12.454 @ 25°C (77°F) | | Odor Threshold: | Not applicable | | Evaporation Rate: | Not Applicable | | Coefficient Of Water/Oil Distribution: | Not applicable | | Stability and Reactivity | | Chemical Stability: | Stable | | Conditions To Avoid: | None currently known. | | Incompatibility With Other Materials: | Acidic material, organic nitro compounds, maleic anhydride, phosphorus, and copper. | | Hazardous Decomposition Products: | Calcium oxide (formed when heated above 1076°F (580°C)). | | Hazardous Polymerization: | Will not occur | | | | Disposal Considerations | | Waste Disposal Method: | Recovered lime can be collected and reused for many applications such as water treatment, road stabilization, and acid neutralization. When disposal becomes necessary, dispose in accordance with federal, state, and local government regulations. Consult environmental regulatory agencies for guidance on acceptable disposal practices. |
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