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Hydrofluoric Acid #3
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Hydrofluoric Acid #3

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  • 1. Chemical Logistic Mini project Group Members: Chee Wai Yee* Goh Delphine Goh Xin Yi Huang Jia
  • 2. Hydrofluoric Acid
    • POISONOUS!
    • DANGEROUS!
    • CORROSIVE!
    • Extremely hazardous liquid and vapour
  • 3. Hazard Involved
    • Causes severe burns which may not be painful or visible immediately.
    • May be fatal if swallowed or inhaled.
    • Liquid and vapour can burn skin, eyes and respiratory tract.
    • Bone Damage
    • Reaction with certain metals may generate flammable and explosive hydrogen gas
  • 4. First Aid Measures
    • Inhalation: Get medical help immediately.
    • If patient is unconscious, give artificial respiration or use inhalator. Keep patient warm and resting, and send to hospital after first aid is complete.
  • 5. First Aid Measures
    • Ingestion: If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never give anything by mouth to an unconscious person. Get medical attention immediately.
  • 6. First Aid Measures
    • Skin Contact: 1) Remove the victim from the contaminated area and immediately place him under a safety shower or wash him with a water hose, whichever is available.
    • 2) Remove all contaminated clothing.
    • 3) Keep washing with large amounts of water for a minimum of 15 to 20 minutes.
    • 4) Have someone make arrangements for medical attention while you continue flushing the affected area with water.
  • 7. First Aid Measures
    • Eye Contact: 1) Irrigate eyes for at least 30 minutes with copious quantities of water, keeping the eyelids apart and away from eyeballs during irrigation.
    • 2) Get an eye specialist, preferably.
    • 3) Do not use oily drops or ointment. Place ice pack on eyes until reaching emergency room.
  • 8. Fire and Explosion Data
    • Flash Point (Method used): None
    • Flammable Limits: N/A
    • Extinguishing Media: Use media appropriate to surrounding fire.
  • 9. Fire and Explosion Data
    • Special fire-fighting Procedures: Mists and fumes are corrosive and harmful.
    • Firefighters should wear self-contained
    • breathing apparatus and full
    • protective gear when fighting fires
    • involving this product.
    • Unusual Fire and Explosion Hazards : This product reacts with metal, and may liberate hazardous quantities of hydrogen gas.
  • 10. Uses in Industries
    • Propellants and solvents
    • Insecticide and fertilizer production
    • Brewery – control of fermentation
    • Etching and frosting glassware
    • Fabric industry – stain removal
  • 11. Uses in Industries
    • Leather industry – tanning
    • Wielding and stainless steel pickling
    • Production of high octane fuels
    • Drugs and dye production
    • Manufacture of semiconductors
  • 12. Incidences of minor or Major Pollution/ Accidents
    • Frequency
    • United States
    • More than 1000 cases of HF exposure are reported annually. Actual incidence rate is unknown.
    • Mortality/Morbidity
    • Local effects include tissue destruction and necrosis. Burns may involve underlying bone.
    • Systemic fluoride ion poisoning from severe burns may be associated with hypocalcemia, hyperkalemia, hypomagnesemia, and sudden death.
    • Deaths have been reported from concentrated acid burns to as little as 2.5% BSA.
    • Sex
    • Males are affected more commonly, which reflects occupational patterns.
    • Age
    • The majority of exposures occur in adults.
  • 13. History
    • Time of exposure to onset of symptoms is related to the concentration of the HF acid.
      • Solutions of 14.5% immediately produce symptoms.
      • Solutions of 12% may take up to an hour to produce symptoms.
      • Solutions of less than 7% may take several hours before onset of symptoms, resulting in delayed presentation, deeper penetration of the undissociated HF acid, and a more severe burn.
      • Concentrated solutions cause immediate pain and produce surface burns similar to those produced by other common acids (eg, erythema, blistering, necrosis).
      • Pain typically is described as deep, burning, or throbbing.
      • Pain often is disproportionate to apparent skin involvement.
  • 14. History
    • Obtain history of potential exposure to cleaning solutions within the last 24 hours, to include the following:
      • Duration of exposure
      • Concentration of acid
      • Use of protective measures
      • Other agents in the solution
      • Symptoms of hypocalcemia
        • Tetany
        • Chvostek sign
        • Trousseau sign
      • Cardiac arrhythmias
    • Additionally, obtain history of medications and intercurrent illness that predispose patient to hypocalcemia or hypomagnesemia.
  • 15. Physical
    • Weaker solutions penetrate before dissociating.
    • Surface involvement in these cases is minimal and may be absent.
    • Three categories of appearance include the following:
      • Grade 1 - A white burn mark and/or erythema and pain
      • Grade 2 - A white burn mark and/or erythema and pain, plus edema and blistering
      • Grade 3 - A white burn mark and/or erythema and pain, edema, and blistering, plus necrosis
    • Patients with inhalation burns may develop acute pulmonary edema.
    • Ocular burns may present with severe pain.
  • 16. Article #1
    • “ Roads closed in acid leak probe”
    • Bristol Evening Post - July 23, 2004
    • Roads and fields have been closed in Avonmouth after a leak of poisonous and  highly corrosive acid, Hydrofluoric acid. It has been found leaking in the Kingsweston Rhine watercourse, and the area has been declared out of bounds. It was first discovered on Monday, when a fisherman reported dead fish in a pond fed by the rhine.
    • Reference - http://poisonfluoride.com/pfpc/html/avonmouth.html
  • 17. Pictures
  • 18. Pictures
  • 19. MSDS (material safety data sheet)
    • a form containing data regarding the
    • properties of a particular substance
    • an important data in about workplace safety
    • The exact format of an MSDS can vary from source to source within a country depending on how specific is the national requirement.
    • MSDS are widely used system for cataloging information on chemicals , chemical compounds , and chemical mixtures .
  • 20. How is MSDS useful in involving the logistic of moving chemical?
    • Provide logisticians
    • and emergency personnel with procedures for handling or working with that substance in a safe manner when moving chemical
  • 21. How is MSDS useful in involving the logistic of moving chemical?
    • it also includes information such as physical data, toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill handling procedures for the logistician.
  • 22. How is MSDS useful in involving the logistic of moving chemical?
    • MSDS information also include instructions for the logistician in the safe use and potential hazard associated with a particular material or product.
  • 23. References
    • http://en.wikipedia.org/wiki/MSDS
    • http://www.bu.edu/es/labsafety/ESMSDSs/MSHydFluoricAcid.html
    • http://poisonfluoride.com/pfpc/html/avonmouth.html
    • http://www.emedicine.com/emerg/topic804.htm
  • 24. Review of Group 2 – Copper Cyanide
  • 25. Summary of Group 2
    • Copper cyanide is a white to cream colored or sometimes greenish powdery solid that is insoluble in water. It is a poison that reacts violently with magnesium
    • It may be combustible at high temperature.
    • Hazards involved fire hazard and potential health effects such as eye irritation, gastrointestinal irritation, tissue anoxia and skin irritation and even some potential chronic health effects.
  • 26. Summary of Group 2
    • Copper Cyanide was used as a catalyst in polymerizations, in electroplating of copper and iron, and as insecticide, fungicide, and biocide in marine paints.
    • Applications of Copper Cyanide in the industries are copper plating and mining and so on.
    • About 90% is used in mining around the world, mostly for gold recovery.
    • Several accidents on the copper cyanide:
    • POISON SCARE: illegal trail of deadly cyanide closes reserve
    • Nine die as China house collapses in cyanide
  • 27. Comments on Group 2
    • good introduction of Copper cyanide.
    • Better understanding the hazards involved and First Aid Measures needed
    • Lots of pictures and real accidents are showed to understand the dangerous.
    • Provide statistics for further information.
    • Overall, group 2 has done a very good job and showed us more information about Copper cyanide.