Corrosive Chemicals Review the material safety data sheet (MSDS) prior to using this material. Eye Protection Safety glasses that meet the ANSI Z.87.1 1989 standard should be worn whenever handling corrosive chemicals. Ordinary prescription glasses WILL NOT provide adequate protection unless they also meet this standard.
Safety glasses should also be equipped with side shields if there is a possibility of flying particles (i.e., glass, plastics). When there is the potential for significant splash hazards, additional eye/face protection should be worn in the form of goggles or a face shield. Skin Protection Gloves should be worn when handling corrosive chemicals.
Nitrile gloves should be adequate for handling most of these in general laboratory settings. An MSDS should be reviewed if handling may involve extended or high exposure to lab personnel to ensure adequate skin protection is provided. In addition, a lab coat or apron is advised if exposure could involve more than normal handling operations would be expected.
- 1 What are the rules for corrosive safe handling and storage?
- 2 What PPE is needed for corrosive materials?
- 3 What are the hazards of corrosive chemicals?
- 4 Is PPE required when handling chemicals?
- 5 What are corrosive risks to health and safety?
- 6 What are the 3 corrosion protection methods?
- 7 How do you handle chemicals in the workplace?
- 8 What is the most important rule about chemicals?
What should be done when handling a corrosive?
Personal Protective Equipment (PPE) – Before handling corrosive chemicals, you must always wear any required PPE. The MSDS for the substance should provide guidance on the PPE and controls required during handling. The types of PPE you may need to handle chemicals include:
Gloves. These must be chemical-resistant work gloves that afford protection for the specific chemicals on your premises. Discolouration to gloves means that their level of protection has been reduced and they need replacing immediately. Goggles. The goggles you choose must have side shields and have an appropriate level of protection from chemical splashes. Boots. Even if you don’t require specialist protective boots, you must always wear shoes that cover your feet and toes, and provide a degree of protection should you spill a corrosive substance. Therefore, no sandals, ballet pumps, fully canvas shoes etc. Impervious lab coat, coveralls, apron, protective suit etc. You should use some form of impervious clothing when handling corrosive chemicals. If contaminated, you should remove and clean them appropriately, or replace them if damaged.
What are the rules for corrosive safe handling and storage?
How to store corrosives – When storing corrosives, all containers used must be resistant to corrosion such as plastic polyethylene drums or other properly-lined containers. Exceptions do apply in some cases where stainless steel or titanium containers can be used.
- The packaging type largely depends on the concentration of the material.
- Additionally, these containers should always remain sealed unless they are in use to prevent spills or release of vapors.
- At no time should corrosives be overstocked.
- It is best to only keep around what is necessary for the demands of your operation.
Another rule of thumb when storing corrosives is to isolate them in a dedicated area. This reduces the risk of an unwanted reaction caused by leaks or spills. When isolation cannot be done, it is important to store chemicals near compatible materials only.
- To identify compatible materials, reference the Segregation Table for Hazardous Materials in,
- When storing corrosive materials, it is also important that all containers are correctly labeled with their appropriate hazard communication signs per regulations.
- In addition to a dedicated area, corrosives are best kept in a well-ventilated environment to dissipate the buildup of any fumes.
Certain corrosives may also require specific temperatures for safe storage. All flooring and shelving within the storage area should also be constructed out of corrosive-resistant materials. Small containers are best stored on compatible catch trays or storage cabinets.
What PPE is needed for corrosive materials?
Personal Protection Equipment
Personal Protection Equipment (PPE) Personal Protective Equipment (PPE) may be needed to protect yourself from chemical hazards. Examples of PPE include:
|Gloves: Protective gloves protect your hands from chemical exposure. Gloves are available in a variety of materials, such as nitrile, natural rubber and latex, so make sure you consult the MSDS and choose the right glove for the chemical you are using.|
|Chemical splash goggles should be worn when there is a risk of splashing chemicals in your eyes. Normal safety glasses designed for impact resistance, not chemical protection and should not be relied upon for protection against chemical splashes.|
|Face shields should also be worn, along with chemical splash goggles, when working with corrosive chemicals such as strong acids and bases. This practice protects your face as well as your eyes.|
|Splash aprons protect your body against corrosive chemicals. If you are handling a corrosive material in such a way as to present a significant splash hazard, such as pouring the contents of one container into another, splash aprons are needed.|
|Respirators may be needed if you have significant exposure to vapors, fumes or mists of a hazardous material. If you think you may need a respirator, contact your Departmental Safety Manager, or Environmental Health and Safety at 777-5269.|
: Personal Protection Equipment
What are the hazards of corrosive chemicals?
Corrosive chemicals can cause destruction of living tissue by chemical action at the site of contact and can be solids, liquids, or gases. Corrosive effects not only can occur on the skin and eyes, but also in the respiratory tract and, in the case of ingestion, in the gastrointestinal tract as well.
What are the five general steps for complete corrosion treatment?
In general, any complete corrosion treatment involves the following: (1) cleaning and stripping of the cor- roded area, (2) removing as much of the corrosion products as practicable, (3) neutralizing any residual materials remaining in pits and crevices, (4) restoring protective surface films, and (5) applying
How should corrosive substance be stored?
Corrosive Substance Storage Cabinets – Corrosive substances must be stored in a chemical storage cabinet that complies with the design specifications outlined in AS 3780:2008 – The storage and handling of corrosive substances, Corrosive storage cabinets must be constructed from a corrosive resistant material or lined with a corrosive resistant coating.
Self-closing, close-fitting doors that hold shut by catches at two or more points Doors that cannot be opened inwards and which can be opened from inside the cabinet Perforated shelves to allow for free air-movement The base of the cabinet must form a liquid tight sump that is at least 150 mm deep and capable of catching any spills that may occur inside the cabinet
If the corrosive substances that you are storing are very acidic, such as sulfuric acid, they must be stored in a corrosive storage cabinet that is constructed from a non-corrosive material such as high-density polyethylene. Weaker corrosive substances may be stored inside a metal corrosive storage cabinet that has been lined with a corrosive resistant coating.
Is PPE required when handling chemicals?
You are here – Home > Chemical Safety: Personal Protective Equipment All campus research laboratories are required to complete the Laboratory Hazard Assessment (formerly LHAT) and update it at least annually. LHAT facilitates identification of hazards and identifies the Personal Protective Equipment (PPE) to be used during the specified work activities. All laboratory personnel are required to wear PPE when working with chemicals. At a minimum this includes pants and closed toe shoes, chemically resistant gloves, a laboratory coat, and eye protection.
What are the PPE you must wear when handling solvents and chemicals?
Latex or Rubber gloves : should be worn when handling common house chemicals to protect the skin form irritants that can cause minor burns or rashes. Heavy rubber gloves should be worn when handling solvents or corrosive chemicals that can serious burns and death.
What are corrosive risks to health and safety?
OSHA defines a corrosive as “a chemical that causes visible destruction of, or irreversible alterations in living tissue by chemical action at the site of contact.” Under the DOT hazard class system, corrosives are listed as hazard class 8. Corrosive chemicals can be further subdivided as acids and bases.
Corrosives can be in the liquid, solid, or gaseous state. Corrosive chemicals can have a severe effect on eyes, skin, respiratory tract, and gastrointestinal tract if an exposure occurs. Corrosive solids and their dusts can react with moisture on the skin or in the respiratory tract and result in an exposure.
Whenever working with concentrated corrosive solutions, splash goggles should be worn instead of safety glasses. Splash goggles used in conjunction with a face shield provides better protection. Please note: that a face shield alone does not provide adequate protection.
- Use of rubber gloves such as butyl rubber and a rubber apron may also be required.
- Corrosive chemicals should be handled in a fume hood to avoid breathing corrosive vapors and gases.
- When mixing concentrated acids with water, always add acid slowly to the water (specifically, add the more concentrated acid to the dilute acid).
Never add water to acid, this can result in a boiling effect and cause acid to splatter. Do not pour the acid directly into the water; it should be poured in a manner that allows it to run down the sides of the container. Never store corrosive chemicals above eye level and always use a protective bottle carrier when transporting corrosive chemicals.
- Some chemicals can react with acids and liberate toxic and/or flammable vapors.
- When working with corrosive materials, ensure spill cleanup material is available for neutralization, such as Calcium carbonate for acids and Citric acid for bases.
- Wherever acids and bases are used, an eyewash and emergency shower must be available.
If any corrosive chemical gets splashed in the eyes, immediately go to an eyewash station and flush your eyes for at least 15 minutes. The importance of flushing for at least 15 minutes cannot be overstated! Once the eyewash has been activated, use your fingers to hold your eyelids open and roll your eyeballs in the stream of water so the entire eye can be flushed.
After flushing for at least 15 minutes, seek medical attention immediately and complete an Injury/Illness Report, For small splashes of corrosives to the skin, remove any contaminated gloves, lab coats, etc., and wash the affected area with soap and water for at least 15 minutes. Seek medical attention afterward, especially if symptoms persist.For large splashes of corrosives to the body, it is important to get to an emergency shower and start flushing for at least 15 minutes.
Once under the shower, and after the shower has been activated, it is equally important to remove any contaminated clothing. Failure to remove contaminated clothing can result in the chemical being held against the skin and causing further chemical exposure and damage.
Hydrofluoric Acid Designated Area Sign (docx) Hydrofluoric Acid Prior Approval Form OSHA Definition of Health Hazard Prudent Practices in the Laboratory EHS Online Training Programs Hydrofluoric Acid Information from Honeywell Hydrofluoric Acid First Aid Sign (docx)
Please note: some chemicals, such as Hydrofluoric acid, require the use of a special antidote (such as Calcium gluconate gel) and special emergency procedures. Read the SDSs for any chemical(s) you work with to determine if a special antidote is needed if a chemical exposure occurs. ‹ Previous Next ›
What is corrosive toxicity?
2. CORROSIVE SUBSTANCES – Oral intoxication with corrosive agents occurs by ingestion of: acids (hydrochloric, acetic, sulfuric, lactic, oxalic, carbolic), alkalis (sodium and potassium, soaps, detergents), heavy metal salts (sublimate), formalin, iodine tincture and many other chemical substances.
What are the 3 corrosion protection methods?
The rusting of iron can be prevented by greasing, painting, galvanizing, anodizing, or oiling the surface. These methods can be classified into the following categories: Galvanization: Galvanized metal is coated with a thin layer of zinc to protect it against corrosion.
What are the 3 requirements for corrosion?
Is there a way of Preventing Metal Corrosion? – Metal corrosion is a reality that everyone who uses metal has to confront. Knowing the causes of corrosion is the first step to understanding what you can do to prevent it. We know that three things are necessary for corrosion: an electrolyte, exposed metal, and an electron acceptor (air).
What are the 4 basic requirements for corrosion to occur?
Galvanic Corrosion & Galvanic Cell Explained » » » Galvanic Corrosion There are two primary types of galvanic cells that cause corrosion: the bi-metallic couple and the concentration cell. A bi-metallic couple is like a battery, consisting of two dissimilar metals immersed in an electrolyte solution. An electric current (flow of electrons) is generated when the two electrodes are connected by an external, conductive path.
Anode – The electrode where galvanic reaction(s) generate electrons – negative ions are discharged and positive ions are formed. Corrosion occurs at the anode. Cathode – The electrode that receives electrons – positive ions are discharged, negative ions are formed. The cathode is protected from corrosion. Electrolyte – The conductor through which current is carried. Electrolytes include aqueous solutions or other liquids. Return Current Path – The metallic pathway connecting the anode to the cathode. It is often the underlying metal substrate.
All four elements (anode, cathode, electryolyte, and return current path) are necessary for corrosion to occur. Removing any one of these elements will stop the current flow and galvanic corrosion will not occur. Substituting a different metal for the anode or cathode may cause the direction of the current to reverse, resulting in a switch to the electrode experiencing corrosion.
What are the golden rules of chemical safety?
Never put chemicals into bottles or containers with other uses, i.e. eating and drinking. Be sure you know the first aid treatment required if you accidentally spill chemicals on yourself or others. All chemicals must be stored safely. Report any faulty equipment, spillage or damaged containers.
How do you handle chemicals in the workplace?
Reducing exposure to hazardous substances – Suggestions on reducing exposure to hazardous substances in the workplace include:
where possible, perform the task without using hazardous substances where possible, substitute hazardous substances with less hazardous alternatives (for example, use a detergent in place of a chlorinated solvent for cleaning) isolate hazardous substances in separate storage areas purge or ventilate storage areas separately from the rest of the workplace thoroughly train employees in handling and safety procedures provide personal protection equipment such as respirators, gloves and goggles regularly monitor the workplace with appropriate equipment to track the degree of hazardous substance in the air or environment regularly consult with employees to maintain and improve existing safety and handling practices.
What is the most important rule about chemicals?
The most important rule about chemicals is to read, understand and follow all instructions printed on the label. Oftentimes, manufacturers will provide additional information about the safe use of a chemical beyond what is required. Reading all parts of a label is a good rule for all chemicals and substances.
What is important when working with corrosive?
What your employees need to do when working with corrosives – Before using a material, always read the (SDS) to know what is in the material and to learn how to use it safely. The SDS and the also include warnings for possible health effects. Always store corrosives in suitable containers and away from incompatible materials. Remember to store, handle, and use corrosives in well-ventilated areas.
Wear the proper personal protective equipment (PPE) when working with corrosive materials. Dispense corrosives carefully and keep containers closed when not in use. Stir corrosives slowly and carefully into cold water when the job requires mixing corrosives and water. (Rule to remember: AAA – Always Add Acids to water – this also applies to bases). Practice good housekeeping, personal cleanliness, and equipment maintenance. Know how to handle emergencies (spills, fires, injuries) involving corrosive materials. Always follow the health and safety rules that apply to you job.
If an employee should get corrosive material on them, they need to remove any contaminated clothing, rinse themselves off immediately, and seek medical attention.
What precautions should you take when handling a corrosive material like this bleach?
What are some steps to take to work safely with bleach? – Back to top
Use safer alternative products where possible (use another product that is less hazardous to work with). Use soap and water to clean dirty surfaces. Bleach is a disinfectant and should only be used when needed to kill bacteria, fungus, or viruses. Always follow the manufacturer’s instructions for safe use this or any cleaning product. Instructions will be on the label and/or on the Safety Data Sheet (SDS). Always label containers clearly. Do not use a container if it is not labelled or if you cannot read the label. Know when and how to dilute the product correctly (e.g., always pour the concentrate/acid into the water, never the other way around). Never mix with other products, especially other cleaners that contain ammonia. Toxic gases can be produced, which are very irritating or corrosive to the eyes and lungs. Make sure the area you are working in is well ventilated. The vapours from bleach are irritating to the eyes and respiratory system. Use fans or open windows and doors. Wear respirators when recommended. Wear goggles or a face shield to protect your eyes and face from splashes. Wear gloves such as household rubber or neoprene gloves (or other types as recommended by the manufacturer). Note that not all gloves will protect you under every situation so read the directions or the SDS carefully for the manufacturer’s recommendation. Wear clothing that will cover your skin in the case of a spill, including a long-sleeved shirt, pants, socks, and closed-toed shoes. Protective chemical aprons or suits will provide more protection. If using in a workplace, make sure that workers know how to use and store the product, and how react in an emergency. Provide training in safe work and handling procedures, as well as how to use any emergency spill kit, or emergency eye wash/shower unit. Store bleach in a safe, cool, dry place. Keep away from direct sunlight and heat. Close the cap tightly after each use. If using in the home, keep away from children. Keep away from metals. Do not eat, drink, or smoke when using the product. Wash your hands with soap and water after using the product. Do not use with other products such as toilet bowl cleaners, rust removers, acids (including vinegar), and products containing ammonia.