Nalco 93033 Verified Jun 2026
: According to NSF International registration , it is acceptable for treating boilers and steam lines where the resulting steam will not contact food (Category G7). Environmental and Safety Profile
: The product is strictly acceptable for treating boilers, steam lines, and cooling systems where neither the treated water nor the generated steam makes direct contact with edible products in or around food processing areas. 3. Storage Guidelines & Shelf Life Specifications
: Under industrial chemical segregation matrices, it is classified alongside engine and cooling water treatment products (Group A). It must be stored away from reactive biocides (Group B) and concentrated acid solutions (Group C) to prevent accidental exothermic reactions or volatile off-gassing. Core Applications in Industrial Environments
Beyond general utilities, specialized manufacturers like TRUMPF include NALCO 93033 in specialized engineering maintenance kits. It protects precision industrial lasers and machine chillers where even micro-scale corrosion can cause tool misalignment. Regulatory Compliance & NSF Registration nalco 93033
: In industrial settings, it must be stored in bunded areas—secondary containment zones—to prevent accidental spills from entering environmental drainage systems.
Possess a maximum shelf life of exactly one year when stored consistently at or below a stock temperature of 25 °C .
It acts as a disinfectant to ensure the long-term proper functioning of cooling water circuits in machines and lasers. Boilers and Steam Lines: : According to NSF International registration , it
Nalco 93033 is most commonly used in:
When steam cools down and transitions back to water, gases like oxygen and carbon dioxide can dissolve into the condensate loop. This creates an acidic environment that aggressively corrodes metallic piping. Implementing Nalco 93033 helps passivate metal surfaces, extending the lifespan of infrastructure. 3. Cooling System Stabilization
The approval is a "derived authorization," meaning it shares an identical formulation with the product (CAS number 7681-52-9). Storage Guidelines & Shelf Life Specifications : Under
Using an expired additive or storing it in high-heat conditions can lead to "drop-out," where the chemical loses its ability to stay in the solution. This leaves your engine vulnerable to liner pitting and reduced heat transfer. By following the one-year shelf life and 25°C storage rule, you ensure that your cooling system stays clean and your maintenance costs stay low.
: Storage areas must be bunded (at 110% of the largest tank capacity) to prevent environmental contamination.
Nalco 93033 is a proprietary blend of chemicals, including phosphates, phosphonates, and other organic compounds. The exact composition of the product is not publicly available, as it is considered proprietary information. However, it is known to contain a combination of ingredients that work synergistically to inhibit corrosion and scaling.
In closed-loop systems, water continuously recirculates without atmospheric exposure. While this minimizes biological contamination from the outside air, it increases the risk of localized pitting and galvanic corrosion due to dissimilar metals in the loop. NALCO 93033 forms a microscopic, passive film over metal surfaces—particularly steel, copper, or aluminum alloys—to shield the metallurgy from dissolved oxygen and corrosive ions. 2. Open Recirculating Cooling Towers