Chemical Management Plan

Brief description of the Chemical
Philippine Tonan Corporation uses a chemical from the Priority Chemical List.
Palene 5024 contains a Chromium compound so it is a priority chemical. It is an aqueous
solution containing 110% Chromium (III) fluoride and 0.11% Cobalt nitrate. 4%
aqueous solution of Palene 5024 is used in the galvanizing plant. The Chromium solution
improves the quality of the galvanized products. It prevents the formation of white rust in
the galvanized metal product by forming a chromic film in the metal surface. The
Chromium compound is used in the rust protect rinse step of the galvanizing process.
Hot-Dip Galvanizing Process Flow

STORAGE
The chemical storage facility is an isolated building. The gate of the said building has its
upper half covered with interlinked wire to add to the ventilation and natural lighting of
the facility. Exhaust ventilation is also provided to prevent the accumulation of chemical
vapor or fumes. Everything inside the building is well protected from direct sunlight and
weather conditions. Emergency eyewash is also installed in case of accidental exposure
to chemicals.
Chemicals are well segregated. Solids are separated from liquids. Liquid
chemicals are contained in chemical-resistant carboys. Metals are separated from
corrosive chemicals. Chemical containers are placed on top of pallets. Containers are
properly labeled with identification and hazard statements. There are also labels and
safety signs for specific areas.
Warehouse staff conducts regular inventory in the chemical storage facility. A
copy of the monthly inventory report is given to the chemical engineer. This copy of the
inventory is always available.
The facility is designed to use natural lighting to eliminate sparks from light
bulbs. A smoke detector connected to the fire alarm system is installed in the ceiling of
the facility. A fire extinguisher is placed near the gate. It’s also in the range of a fire hose
in case of fire.
The facility is dedicated only for the storage of chemicals. It is locked and it is
only opened during withdrawal or addition of chemicals, inspection and monitoring. The
chemical engineer checks the facility weekly to ensure conformance to the established
operation and maintenance plan.
A spill containment tray will be installed. This will serve as secondary
containment in case of priority chemical container leaks.
Handling and Transport
Chemical-resistant plastic carboys are used in storing liquid chemicals to avoid

leaks, spillages and contamination. Packages should not be opened, or the contents
accessed, in the chemical storage facility to avoid the risks resulting from close proximity
to other packages, accidental escape of chemicals, escape of vapors during transfers and
possible reaction with other substances
Ventilation shall be provided for the dispensing area to remove vapors to levels
that ensure a safe environment. Safe practices shall be utilized when opening or
transferring packages. At the end of transfer operations the original package either
‘empty’ or with the residual contents shall be removed from the decant area. After
cleaning its exterior to remove any material adhering to the package, the original package
shall be disposed as hazardous waste.
Spent chromic solution is hazardous waste. Spent solution is contained in high
molecular Navy cubes. Each Navy cube can contain 1 metric ton of liquid waste. These
are temporarily stored in the liquid hazardous wastes area before transferring to a
treatment and disposal facility. Transport of hazardous waste is done by a DENR
registered tansporter.
Use and Disposal
After coating with zinc, the galvanized item is partially cooled in a quenching
bath. This process also removes extra zinc deposits on the material. The surface of the
galvanized material will oxidize in moist air and white corrosion products form rapidly
when two zinc surfaces are stacked together. To delay this corrosion, items are water
quenched in the chromic solution that applies a chromic film to the zinc surface.
Chromate quenching prevents the formation of wet storage stain.
Upon material preparation, items are secured to a jig so that they can be dipped
slowly into the chemical tanks with the help of the crane. Slow dipping of items in the
tanks reduces the risk of chemical splash that could result to a spill. The tanks are only
90% full to prevent spillage of the chemical during metal treatment. On average, 14.81
tons is processed in the chrome tank daily.
Half the chromic solution tank is renewed when the Zinc concentration is already
at 1000 mg/L. Renewal usually happens annually. Five tons chromic solution waste is
generated every renewal. Chromium compound concentration of this hazardous waste
ranges from 2-2.5% by volume.
Liquid hazardous wastes are contained in high molecular navy cubes and stored in
the liquid hazardous waste area. The area has safety signage and the containers are
labeled. Hazardous wastes are transported and treated offsite by Cebu Common
Treatment Facility, Inc. Treatment process is done by chemical immobilization.
Chemical Substitution Plan

As for now, the company still has no plans of substituting the priority chemicals.
These chemicals still don’t have effective substitutes available.
Safety and Health Requirements

Personnel who handle the priority chemicals are provided with gloves, respirator,
safety eye goggles and safety shoes. Personnel handling priority chemicals must attend
safety orientation on the first day of work.
Personal hygiene when handling and storing chemicals is an integral part of
controlling physical exposure. Personal hygiene requirements include:
• providing readily available wash up facilities;
• washing hands immediately after using chemicals;
• storing food or drink separately from chemicals
• ensuring that production area is free from eating and drinking;
• displaying “rules” in laboratories and workshops that include hygiene
requirements; and
• wearing and storage of suitable PPE, such as eye/face protection, gloves and
over garments.
Training Program
The purpose of information, instruction and training is to ensure that personnel

handling chemicals have the skills and knowledge they need to perform their tasks in a
manner that is safe and without risks to health (their own and that of colleagues working
around them) and the environment. It should enable them to follow health and safety
procedures and use risk controls that are set in place for their protection. It also provide
them with an appreciation of the nature of the chemicals used in the workplace and the
risks associated with their use, and the reason why risk controls are used. The mix of
information, instruction and training provided will depend on the severity of the hazards,
the level of responsibility of the person and what the person already knows about the
chemicals and their use. All personnel with potential for exposure to (working with)
chemicals, shall undertake training and induction on the use of chemicals.
The topics that should be covered in chemical safety training and induction
include:
• classification of chemicals;
• chemical risk assessment;
• labeling;
• storage and segregation requirements;
• spills management and emergency procedures:
• handling, storing and disposing of chemical waste and containers;
• transportation requirements;
• PPE
• Material Safety Data Sheet of the Priority Chemical;
• Safe Work Procedures (SWP):
• Hazardous Materials:

Chemical Management Plan

Uploaded by

Copyright:

Available Formats

Chemical Management Plan

Uploaded by

Document Information

Copyright

Available Formats

Share this document

Share or Embed Document

Sharing Options

Did you find this document useful?

Is this content inappropriate?

Copyright:

Available Formats

Chemical Management Plan

Uploaded by

Copyright:

Available Formats

How is the priority chemical Palene 5024 used in the galvanizing process?

How is hazardous waste from the chromic solution tank renewal process handled?

Brief description of the Chemical

Hot-Dip Galvanizing Process Flow

Chemical-resistant plastic carboys are used in storing liquid chemicals to avoid

Use and Disposal

Chemical Substitution Plan

Safety and Health Requirements

The purpose of information, instruction and training is to ensure that personnel

You might also like