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Water Corrosion Inhibitor
What is a ChemWorld 2338D?
ChemWorld 2338 is designed to minimize corrosion to hot water boiler and chiller systems. ChemWorld 2338D is pink in appearance. ChemWorld 2338 & 2338D are closed water system treatment programs designed to treat hot and chilled water systems. The product contains a combination of nitrite, borate, and silicate formulated to minimize corrosion and deposition. The product comes in a clear and pink appearance form. This product is not intended for use in steam boilers. This product is compatible with propylene glycol.
How much chemical do I have to add to my system?
5 Gallons treats roughly 875 to 1,250 gallons of fresh water. Below is an easy to use chart for determining the amount of Boiler Rust Inhibitor required for new systems.
| Gallons of Product Required |
Gallons of Water |
55 Gallons
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9,625 to 13,750
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5 Gallons
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875 to 1,250
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1 Gallon
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175 to 250
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Residuals of this product can be monitored with a nitrite test kit or nitrite test strips.
For critical hot water applications, we recommend monitoring the boiler water pH and conductivity as a reference in case future problems occur.
Stocked in Atlanta, Georgia; Taylor, Michigan; and Salt Lake City, Utah.
Stocked & Ships Daily from Atlanta, Georgia; Salt Lake City, Utah; and Taylor, Michigan. This product typically ships today if ordered by 1 to 3 pm depending on order volume. If it must ship today, please indicate so in the notes section upon ordering. We will contact you.
Ground transit times map.
Notes:
- We only ship via FedEx ground. No UPS or USPS.
- We can not ship to PO boxes.
- This map illustrates service schedules in business days as of May, 2023 for FedEx Ground shipments.
- ChemWorld is not responsible for delays due to weather or Fedex transit issues. Please take this into account when ordering.
Overnight / Expedite Shipping:
- Orders must be received by noon EST.
- We only ship FedEx expedite shipments. No UPS or USPS.
- To calculate your costs, log into your FedEx Account. Origin zip code is 30144, 84119, and 48180.
Directions for Expedite Shipping:
- Must order by noon EST.
- Order as normal through the website.
- If you have a FedEx Account number, enter it in the notes section during ordering with your exact shipping requirements (Next Day 8:30, Next Day 10:30, Next Day 20:00, Fedex 2 AM, or FedEx Express Saver). You are done. We will email you ASAP.
- If you do NOT have a FedEx Account number, we offer overnight delivery for this product. The cost is $80 for Next Day 10:30 AM per 1-gallon container. Enter your order as normal and enter your 3 or 4 digit security code in the notes section with your shipping requirements. You are done. We will email you ASAP.
If it is later then noon EST, email us at [email protected] with your request. We will contact you ASAP. You can also call in the order at 800-658-7716 and reference exactly what you need. We will contact you.
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Frequently Asked Questions
- Can I add Nitrites to my boiler that has 30% Propylene Glycol in it?
- Yes Nitrite based Corrosion Inhibitors like our Chemworld 2338 are compatible with Propylene Glycol.
- I have a 1/2 ton chiller closed loop with a 7 gallon tank. I ordered ChemWorld 2338, how much do I need to add to the system?
- Approx. 5 ounces should be enough for that volume.
- We use your 2338 chemical in our hot water heating system, which is a closed loop and temperature is 180 to 190 degrees fahrenheit. We use the acustrip test strips to check water and everything is good except we would like to bring our PH level up. The test strip always shows below 7.5 PH. Is there a chemical we can add just to bring PH up?
- As long as the Nitrite levels are right your system is protected. Our Chemworld 2338 passivates the metal so it's not in contact with the actual water. If you are concerned about the pH then you can add additional 2338 to the system to bring it up. It generally doesn't take much.
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Good supplier 
