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The JPCHEMICAL
The JPChemical legendThe JPChemical cleaning servicesLinks in GreeceLinks in the Far East Region(ELLHNIKA) Articles in Greek LanguageMARINE BOILERS REPAIRS LTDMARINE BOILER REPAIRSRULES AND REGULATIONSFIELDS
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Which materials & equipment?Acid CleanersAlkaline CleanersPassivation ChemicalsPumpsTesting and MonitoringSAFETY FIRSTSafety in Chemical CleaningSpill Cleanup RespondMSDS Hydrochloric AcidMSDS of Citric acidMSDS Ammonium bifluorideMSDS of Nitric AcidMSDS Caustic sodaMSDS Ammonium Hydroxide (10-35% )MSDS Trisodium phosphateMSDS of Sodium CarbonateMSDS of Sodium MetasilicateMSDS of Sodium NitriteCHEMICAL CLEANING TUTOR
Chemical Cleaning terminologySpecificationsCommon MistakesTo clean or not to cleanThe sequenceThe ChemistryGlossaryCHEMICAL CLEANING PARAMETERSChemistry UnitsConcentration unitsPhysics and chemistry unitsFlow RatesMathematics unitsWater Treatment|
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| SPILL CLEANUP RESPOND |
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SPILL RESPONSE GUIDE (1) Waste Handling Absorbent pads, pillows, or loose sorbent, OR Acid neutralizer such as Spill-X-A, Neutrasorb, sodium carbonate (soda ash), sodium bicarbonate, or calcium carbonate (2) PPP. Protective equipment Splash goggles Lab coat or apron Shoe Covers (optional) Chemical-resistant gloves Sealable container Plastic mixing tools Heavy duty waste bags Tape to seal bags Hazardous waste labels (3) Response Actions/Cleanup Methods Alert others in the spill area. Don’t touch or walk through the spilled material. Shut off ignition sources. Wear eye and skin protection. Use gloves compatible with acids such as a thick nitrile or neoprene. Avoid breathing vapors. As quickly as possible, dike the spilled liquid to prevent spreading. o Spill pillows, pads, or a general absorbent material may be used. o Use only inert non-combustible absorbents with oxidizing acids. If acid is neutralizable**, use a weak base such as sodium carbonate (soda ash), sodium bicarbonate, or calcium carbonate. o Add neutralizer slowly and work from edges of spill inward. Use caution because the reaction can cause splattering. o Mix the neutralizer with a plastic spatula or other tool. Be sure to mix well to assure material is neutralized. o Test pH or use product’s color indicator to determine level of neutralization. o When pH is 6-8, it is no longer considered hazardous waste. The neutralized material may be carefully dissolved in water and washed down the sink. o Any items used to absorb or dike non-neutralized acid should be considered corrosive and disposed of as hazardous waste. o After the neutralized spill material has been picked up, spray the area lightly with water; test with pH paper to ensure all corrosive material has been removed. Clean up spill with absorbent if it’s not recommended to neutralize the acid** or if a neutralizer is not used. If solid, you do not need to neutralize or absorb. Pick up spill cleanup materials with plastic tools and place into a plastic or glass container with a sealable lid. The material may also be double-bagged and placed into a sealable cardboard box. Label material for collection by HPO. Thoroughly ventilate the area after cleanup. Clean the area with detergent and water after the spill cleanup. **Acids that may be neutralized include hydrochloric acid, sulfuric acid, nitric acid, and phosphoric acid. Do not neutralize acids that contain heavy metals or are oxidizing acids. Examples of acids that you should not neutralize include chromic acid, perchloric acid, and fuming nitric acid. Do not neutralize hydrofluoric acid. Note – some acids may not be washed down the drain even if neutralized because they have other characteristics that make them hazardous; for example, neutralized chromic acid cannot be sewered because it contains the toxic heavy metal chromium. For these acids, simply absorb the material, rather than neutralize it. Waste material should be stored in a safe area and clearly marked for special disposal by a recycling contractor. Record how much of the chemical was spilled and the method of clean up and proper disposal, as required by hazardous waste regulations. Contingency Spills and Response During operational use, transportation, and wherever an accidental spill is likely to occur, each laboratory and field unit should have, as part of their required emergency equipment, sufficient absorbent materials, such as sodium bicarbonate, soda ash or lime, to handle small spills. Shovel chemical waste into a container and properly label as "used hydrochloric acid." Wash residue from spill are with copious amounts of water. Do not allow run-off to contaminate water supplies or nearby creeks or rivers. Do not attempt cleanup unless wearing skin, eye, and respiratory protection. Since hydrochloric acid has a pH less than 1, discarded material is a hazardous waste (Environmental Protection Agency (EPA) Hazardous Waste No. D002, 40 CFR 261.22) including empty hydrochloric acid containers. Waste material should be stored in a safe area and clearly marked for special disposal by a recycling contractor. Record how much of the chemical was spilled and the method of clean up and proper disposal, as required by hazardous waste regulations. |
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