1. Overview
What is Caustic – Sodium Hydroxide?
Sodium Hydroxide is a highly corrosive chemical with the formula name NaOH. It is a strong base and is often used in chemical manufacturing, water treatment, and cleaning applications. Here at Polymaster, we design and manufacture storage and dosing solutions specifically for sodium hydroxide, ensuring safe and efficient handling. Our supply tanks for this chemical are used in various industries, including paper manufacturing, soap making, and pH regulation processes.
What material is compatible with Caustic – Sodium Hydroxide?
1.5SG & 2SG with Hexene PE.
Polymaster’s tanks with 1.5SG & 2SG hexene PE are designed for maximum chemical storage efficiency. The hexene PE material offers superior strength and chemical resistance, suitable for storing a broad spectrum of chemicals. With options for both 1.5SG and 2SG, these tanks provide flexibility to meet varying storage needs, ensuring compatibility with different chemical densities. Polymaster’s tanks are built to last, undergoing rigorous quality assurance processes to meet stringent safety and performance standards, making them ideal for industries that demand versatile and robust chemical storage solutions.
2. Chemical Dosing Solutions
Pre-engineered Dosing Systems
Our pre-engineered dosing systems are designed for precise and efficient dosing of Caustic – Sodium Hydroxide. These systems are pre-engineered to offer a dosing range which is off-the-shelf and suitable across a wide range of industries. To configure a pre-engineered dosing system suitable for your application, this range offers:
Key Features:
Pump Arrangements: Duty or Duty/Standby pump arrangements.
Pump Options: 7.5 LPH @ 16 bar up to 200 LPH @ 4 bar – Grundfos DDA Dosing Pumps.
Pipework and Valves: +GF+ sch80 pipework and valves.
Cables and Junction Box: Control Cables and Junction Box.
Mounting: These dosing systems are typically mounted inside the Double Door Cabinet and can be integrated to the side of a storage tank or standalone.
Documentation: Detailed drawings, datasheets and step files available for these systems.
Custom dosing systems
Our custom dosing systems are tailored to meet the unique requirements of your specific applications. Polymaster builds custom dosing systems to match client-supplied P&ID’s and we follow the end-users’ specifications, such as a Water Utilities technical specification.
Key Features:
Customised Systems: Systems built to your specifications.
Precision Dosing: Advanced pumps and controls for accurate chemical delivery.
Integration: Seamless integration with your current processes and systems.
Safety and Compliance: Designed to meet all relevant standards and end-user specifications.
Large Systems: We can build large systems for large-scale applications.
3. Chemical Storage Solutions
Tanks for Caustic – Sodium Hydroxide Storage
Polymaster’s Self-Bunded range is the ultimate storage solution for Caustic – Sodium Hydroxide. This range incorporates the bund with the storage tank, providing a bund capacity of 110% of the internal storage tank. In the unlikely event of a leak, this design prevents chemicals from coming into contact with the environment and personnel. Polymaster’s chemical tanks are not rainwater tanks and follow strict QA processes, such as hydro testing each tank to ensure they are 100% leak-proof.
110ltr Dosing Skid 15mm
220ltr Dosing Skid 15mm
CDU 110L/220L
Small chemical storage tanks offer advantages over large storage tanks in terms of flexibility, accessibility, and safety. Their smaller size allows for easier handling and transportation, making them ideal for labs, small-scale industrial operations, and fieldwork where mobility is key.
These tanks are suitable for environments with limited space, allowing convenient storage in confined areas. They also facilitate precise inventory management, reducing the risk of overstocking and chemical waste. They can be easily replaced or cleaned, ensuring better hygiene and reducing cross-contamination.
Enclosed IBC Bund
IBC Storage (1,000L)
Intermediate Bulk Containers (IBCs) are versatile and widely used due to their large capacity and convenient design.
Polymaster’s unique Enclosed IBC Bund solves many of the problems associated with IBC storage and chemical/fluid decanting in a weather-resistant, purpose-built enclosure.
Constructed from high-grade polyethylene, the Polymaster Enclosed IBC Bund allows for easy forklift movement of IBCs in/out, with a simple connection made to a 250 litre day tank, eliminating OH&S issues associated with IBC handling.
Bunded Chemical Tank 1,500ltr
Bunded Chemical Tank 2,300ltr
Bunded Chemical Tank 3,300ltr
Bunded Chemical Tank 5,000ltr
Bunded Chemical Tank 7,000ltr
Bunded Chemical Tank 10,000ltr
Bunded Chemical Tank 13,000ltr
Bunded Chemical Tank 21,000ltr
Bunded Chemical Tank 30,000ltr
Bulk (1,500L - 30,000L)
Large chemical storage tanks offer significant benefits over small tanks in terms of efficiency, cost-effectiveness, and operational capacity. These tanks store substantial volumes of chemicals, reducing the need for frequent refilling and minimising downtime in industrial processes. This efficiency translates to lower storage costs and the ability to purchase chemicals in bulk at discounted rates.
Large tanks also centralise storage, simplifying inventory management and logistics while ensuring a continuous supply of necessary chemicals. Fewer large containers reduce the risk of leaks and spills, and these tanks are equipped with advanced safety features to handle hazardous materials securely.
Accessories for Caustic – Sodium Hydroxide Storage
Accessories give you the ability to decanter, store, mix and dispense with ease. We ensure you have a safe and effective solution for storing and dosing aggressive chemicals.
Dosing Skids
Polymaster provides dosing pipework and skids that assist in controlling the flow rate of Caustic – Sodium Hydroxide used in various treatment setups. These systems ensure precise and efficient chemical dosing.
Chemical Filling Stations
Polymaster’s chemical filling stations offer a safe and efficient solution for unloading Caustic – Sodium Hydroxide. Designed for ease of use, these panels ensure secure and controlled chemical transfer.
Cabinets
Chemical Dosing Systems – made easy at Polymaster for all applications, with flexible dosing options available ranging from a standalone cabinet to a complete package. These cabinets ensure safe and organised storage of Caustic – Sodium Hydroxide dosing equipment.
4. Case Studies
Upgrading the Dungong Wastewater Treatment Plant
Find out how Polymaster was involved in the completion of a $28 million upgrade project to improve Dungong’s water quality.
5. Applications
What are the applications for Caustic – Sodium Hydroxide?
Caustic – Sodium Hydroxide is a versatile chemical with a wide range of applications across various industries.
Here are some of its primary uses:
Water Treatment
pH Adjustment: Sodium hydroxide is used to adjust the pH levels in water treatment processes, neutralizing acidic water and making it safe for consumption and discharge. Heavy Metal Precipitation: It helps precipitate heavy metals from water, making them easier to remove in water and wastewater treatment facilities.
Chemical Manufacturing
Chemical Synthesis: Sodium hydroxide is used in the production of a wide range of chemicals, including sodium salts, dyes, and pharmaceuticals. Biodiesel Production: It acts as a catalyst in the transesterification process, which is essential for producing biodiesel from fats and oils.
6. FAQ
- Sodium Hydroxide is a highly reactive and corrosive chemical that requires special handling and storage. It is important that it is stored within a container that is resistant to corrosive chemicals. This means within a tank or container that is built for the purpose of holding aggressive chemicals. It is crucial that the temperature is maintained otherwise the chemical will crystallize and turn solid. This can lead to unnecessary wastage and damage to the storage tank itself. A minimum of 15°C must be maintained.
Store Sodium Hydroxide at a temperature between 15°C – 35°C in a polyethylene tank. This will vary based on the chemical concentration.
Use containers made of compatible materials, such as our 7032 grade hexene 1.5 SG / 2 SG to store Sodium Hydroxide. Never store in metal containers. It will attack metal resulting in a spill.
Store Sodium Hydroxide separately from other chemicals, particularly acids, which can react with it and cause dangerous reactions.
Secondary containment is an absolute necessity. Make sure to surround the primary storage container to collect any spillage of Sodium Hydroxide.
Ensure that Sodium Hydroxide containers are tightly sealed and labelled with the proper hazard warnings.
Regularly inspect and check your tank for any signs of damage or wear that may occur and get them repaired immediately.
The storage and piping system should have venting or overflows with diameters of at least four times the inline pipe.
The tank system should have minimum piping runs to prevent freezing and solid deposition.
When it comes to storing Sodium Hydroxide, what you are storing it with is just as important as you can cause serious harm to people on-site or the environment around you. Sodium Hydroxide should not be stored with strong acids, metals, water or moisture.
When it comes to the storage and handling of Sodium Hydroxide it is important that it is handled safely, and that everyone on-site is kept safe. Here are a few guidelines to follow to keep your workplace safe:
Store the chemical in its own designated area, away from other chemicals and direct sunlight. If Sodium Hydroxide is exposed to direct sunlight and it heats up it will produce irritating, poisonous and/or corrosive gases.
With any type of corrosive chemical using the appropriate personal protective equipment (PPE) such as gloves, goggles and face shield is a must, Sodium Hydroxide is no different.
Avoid inhaling Sodium Hydroxide fumes or mist, which can cause respiratory irritation and other health problems.
Always handle Sodium Hydroxide with care and avoid splashing or spilling it.
Do not mix Sodium Hydroxide with any other chemicals or substances without first consulting a qualified professional.
7. Resources
This Chemical Compatibility Chart provides a comparison of the chemical resistance of our Specialty Grades of Linear Low Density Polyethylene, High Density Polyethylene and Polypropylene Polymers in different chemical environments.
Download The Chart
We also have additional resources available on all our chemical tanks, dosing skids and accessories such as:
- GA/PDF drawings for all tanks.
- Step files to easily incorporate into your CAD files.
- Datasheets on each tank, including different SG and Chemical Grade materials.
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