Hydrogen Peroxide Safety & Handling - · PDF fileHydrogen Peroxide Safety & Handling" 2! ......
Transcript of Hydrogen Peroxide Safety & Handling - · PDF fileHydrogen Peroxide Safety & Handling" 2! ......
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Hydrogen Peroxide Safety
& Handling"
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2!
Responsible Care®"• What are the principles of Responsible Care®?!
• What is the Responsible Care Management System (RCMS)?!
• Active member of the American Chemistry Council (ACC) and the Chemical Industry
Association of Canada (CIAC)!
• Applying Plan-Do-Check-Act!
• Committed to constant improvement in:!
– Occupational Safety and Health!
– Process Safety!
– Environmental Protection!
– Security!
– Distribution Safety!
– Product Stewardship Performance!
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3!
Hydrogen Peroxide – H2O2"
• Diversified industrial uses!
• Water-like appearance and physical properties!
• Oxidizer!
• Chemically active!
• Shipped as 70%, 50%, 35%, or 31%
but normally stored at 50% or less!
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4!
Hydrogen Peroxide Grades""
Current Name
Main Uses
Specifications
Source Dilution Water
Comments
Standard
• Waste treatment • Non-food bleaching
PeroxyChem internal Approved tap water
Stannate + other stabilizers Heavily stabilized
Technical
• Chemical synthesis
PeroxyChem internal DI water
Organic “tin free” stabilizer
Super D
• Hair bleach, topical uses • Specialty laundry bleach • Extra stabilizer for stability on
dilution to 1-6%
U.S. Pharmacopeia for 3% solution DI water
Stannate + other stabilizers Heavily stabilized for shelf life
SemiConductor Grades
• Routine semiconductor processing
• ACS reagent uses • Ultra high purity for critical
semiconductor use
SEMI specifications DI water
Lightly stabilized Or non-stabilized
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5!
Hydrogen Peroxide Grades""
Current Name
Main Uses
Specifications
Source Dilution Water
Comments
Durox®
Durox LRA® and LRD®
• U.S. CFR approved food uses in bath, and low residue spray aseptic packaging use
Food Chemical Codex DI water
Stannate + other Stabilizers Stabilized for food and equipment
sanitization
OxyPure®
• Potable water treatment
NSF approved Food Chemical Codex
DI water
Lightly Stabilized
HTP
• Propulsion
N/A
Lightly Stabilized
OHP
• Environmental – Fenton’s Chemistry
DI water
Stabilized for Environmental Applications
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6!
Sample Applications"
Pulp & Paper • Bleaching of chemical and
mechanical pulps
• De-inking
Textiles • Cottons (Stone-washed effect)
• Bleaching
Food and Beverage • Aseptic packaging
• Bacterial disinfecting agent
• High-fiber additives (bleaching)
Electronics • Circuit board cleaning & etching
Environment • Organic pollutant treatment
• Chlorine, sulfide and cyanide removal
• Bioremediation
• Potable water treatment
Cleaning and Sanitization • Perborates/percarbonates/peracids
• Liquid H2O2 bleach
• Detergent manufacturing
Polymers and Chemical Synthesis • Organic and inorganic peroxides
• Epoxides/oxides/specialty chemicals
Natural Resources Extraction
• Leaching enhancement for goldand silver extraction
• Hydraulic fracturing biocide
Pharmaceutical and Cosmetic • Mouthwash
• Contact lens cleaner
• Disinfectant
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7!
Never Contaminate
Never Confine
The 4 Rules of H2O2 Use & Handling"
1 2
AlwaysHave Water Available
Never Contact
3
4
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8!
NEVER CONTAMINATE
Preventing contamination ensures safety and quality. "
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9!
• Heat & energy!
• Materials of construction!
• Externally introduced materials!!
NEVER CONTAMINATE
Types of Contamination"
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10!
Chemical Reaction Caused by Contamination"
NEVER CONTAMINATE
H2O2 Contaminant + Oxygen Water Heat + +
With fuel present Fire
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11!
The Effect of Heat on H2O2"
NEVER CONTAMINATE
Temperature (F°) Rate of Decomposition
72° 1% per Year
151° 1% per Week
218° 2% per Day
0 50 100 150 200 250
Rat
e of
Dec
ompo
sitio
n
Temperature (F°)
The Effect of Temperature on the Rate of H202 Decomposition
For every 10°C rise in temperature the decomposition rate approximately doubles. !
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12!
Materials of Construction"
NEVER CONTAMINATE
Storage Tanks
Piping
Valves
Pumps
Hoses
Gaskets, Diaphragms,
O-Rings
#5254 Aluminum
PASSIVATED
Consult with PeroxyChem on
Application
SS316L/SS304L PASSIVATED
Standard and Technical Grades only
Polyethylene LINEAR/CROSS-
LINKED HD
Consult with PeroxyChem on
Application
PASSIVATED
SS316, SS316L, SS304, SS304L 1060 Aluminum
VENTED, PASSIVATED
SS316, B356 Aluminum
Virgin Teflon Seats and Seals
PASSIVATED
SS316, B356 Aluminum
Mechanical Seals Pure Ceramic,
Silicon Carbide, Teflon, SS316
PASSIVATED
SS316, SS304
Virgin Teflon, PP363 Vinyl,
Garlock Gylon, Viton A
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13!
Reasons for Passivation"
• Removes surface impurities!
• Provides a compatible metal oxide surface for Hydrogen Peroxide contact:!– Ensuring stability and quality"
– Inhibiting corrosion"
!
NEVER CONTAMINATE
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14!
Common Materials to Avoid"
• Brass!
• Bronze!
• Chromium!
• Copper!
• Graphite!
• Iron/Steel!
• Lead!
• Lubricating Oil!
• Magnesium Alloys!
• Monel!
• Nickel!
• Pipe Dope!
• Titanium!• Zinc!
!
These will cause accelerated decomposition of H2O2
NEVER CONTAMINATE
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15!
How Materials are Introduced Externally"
• Wrong materials delivered into storage vessel!
• H2O2 delivered into wrong tank"
• Process backs up into H2O2 system!
• Returning unused H2O2 into original container!
• Dust, dirt, etc.!
NEVER CONTAMINATE
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16!
Indications of Hydrogen Peroxide Decomposition"
• Pressure buildup!– Activation of pressure relief devices"
• H2O2 visually active!– Rapid bubbling"
• Temperature increase!
• Gas or steam evolution!
NEVER CONTAMINATE
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17!
Pressure buildup can cause tank failure."
NEVER CONFINE
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18!
• Hydrogen Peroxide always decomposes, only the rate varies!
• A volume ratio of 200:1 of Oxygen liberated to liquid
decomposed is possible!
• Pressure build up will occur in a closed system!
• Excess pressure build up can result in tank or line rupture
or failure!
NEVER CONFINE
Reasons for Not Confining Hydrogen Peroxide"
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19!
Horizontal Tank"
PROCESS
WATER
H202
NEVER CONFINE
FLOATING RELIEF MANHOLE COVER
FILTERED VENT
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20!
Vertical Tank"
WATER
H202
PROCESS
NEVER CONFINE
FLOATING RELIEF MANHOLE COVER
FILTERED VENT
DRAIN
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21!
Pressure Relief in Pipe Between Closed Valves"
NEVER CONFINE
PRESSURE RELIEF VALVE
H2O2 LINE VALVE VALVE
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22!
Two Methods of Venting the Ball Cavity of a Valve
NEVER CONFINE
1/8” DIAMETER HOLE IN UPSTREAM SIDE OF BALL
PRESSURE RELIEF VALVE
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23!
Serious injury is at stake. "Protect yourself."
NEVER CONTACT
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24!
• Daily Work Around Equipment!– Chemical safety goggles"
– Rubber gloves"
• Increased Exposure Due to Spillage, Maintenance or Sampling!– Neoprene or vinyl acid suit (cotton clothing can catch fire)"
– Neoprene boots (leather footwear can catch fire)"
– Full face shield!
• Lack of proper eye protection or proper clothing could result in
serious injury such as burning of the skin, tissue damage or
throat inflammation!
NEVER CONTACT
Proper Protection"
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25!
H2O2 Fuel + Oxygen Water Fire + +
Chemical Reaction Caused by Contact with a Fuel""
Fuel can be any combustible material such as wood or leather boots
NEVER CONTACT
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26!
A diluted solutionis less hazardous."
ALWAYS HAVE WATER AVAILABLE
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27!
Always have water available to dilute H2O2!
ALWAYS HAVE WATER AVAILABLE
Emergency Response EquipmentWhen Handling H2O2"
• Safety showers!
• Eyewash!
• Hose!
!
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28!
Eyes Body Internal
Immediately flush eyes with plenty of water for at least 15 minutes.
Flush skin with water. Remove and wash contaminated clothing and shoes promptly and thoroughly.
If swallowed, drink water immediately to dilute. Do not cause vomiting. Call a physician.
First Aid"
ALWAYS HAVE WATER AVAILABLE
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29!
Response"
• H2O2 by itself is non-flammable"
• Use water for extinguishing fires!
• Keep area clear of all personnel!
• If a fire is near a storage vessel or equipment cool with an external water spray!
• Flush equipment with water"
ALWAYS HAVE WATER AVAILABLE
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30!
General Rules for Maintenance and Repair"
• Wear proper protective equipment!
• Relieve pressure on system
(shut off H2O2 flow and isolate
piping, equipment and storage
tank)!
• Introduce and flush compatible water through the piping system!
• Lock out equipment!
• Drain water"
• Rinse off all parts with water (i.e. fittings, nuts, bolts, gaskets)!
• Repair and clean component!
• Repassivate if necessary!
• Avoid incompatible material or
equipment substitutions!
• Check operation!
• Restart"
ALWAYS HAVE WATER AVAILABLE
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31!
Maintain Safety and Quality"
Passivate all components of Hydrogen Peroxide system!
Inspect tanks and delivery system once every two years!
Test Hydrogen Peroxide and water quality!
Repair defects immediatelyRepassivate equipment if needed!
!
ALWAYS HAVE WATER AVAILABLE
PASSIVATION
INSPECTION
SAMPLING
MAINTENANCE
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32!
Never Contaminate
Never Confine
The 4 Rules of H2O2 Use & Handling"
1 2
AlwaysHave Water Available
Never Contact
3
4
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33!
Our Vision"• PeroxyChem’s vision is to be the leading global supplier of oxidation
solutions to the electronics, environmental, food safety and other industrial and consumer markets, built on its peroxygen chemistries and adjacent technologies!
!
• This vision is supported by our core values of safety, people, innovation, customer focus and growth.!– People: Increase accountability and personal initiative. Challenge the status quo to
improve efficiency and productivity.!– Safety: Maintain our historic track record. Prioritize a fierce dedication to safe practices.!– Innovation: Innovate in everything we do.!– Customer focus: Nurture customer relationships with our expertise and provide
innovative ways to meet customer needs.!– Growth: Focus on market orientation and continue to serve markets around the world.!
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34!
Questions"