Nalco 93033 !!exclusive!! -

NALCO 93033 is a specialized cooling water treatment additive primarily used to prevent corrosion and scale in closed cooling systems. It is a proprietary chemical formulation often utilized in industrial laser systems, such as those from TRUMPF, to maintain the integrity of cooling circuits. Key Technical Features

Chemical Function: Primarily acts as a corrosion inhibitor and biocide precursor (often associated with sodium hypochlorite for chlorine dioxide generation).

Shelf Life: One year when stored at a maximum temperature of ( ).

Certifications: Registered with the NSF International for use in and around food processing areas where there is no possibility of food contact. Safety and Handling Requirements

Physical Hazards: The substance is combustible and should be kept away from heat and open flames. Health Hazards:

Skin/Eyes: Can cause moderate irritation. Goggles and face shields are required for handling. nalco 93033

Inhalation: Prolonged inhalation may be harmful, potentially leading to nausea, dizziness, or central nervous system depression.

PPE Recommendations: Wear chemical-resistant gloves, protective clothing, and eye protection during any preparation or transfer process. Storage and Compatibility

Containment: Storage areas must be bunded (at 110% of the largest tank capacity) to prevent environmental contamination.

Classification: Typically grouped with alkali or non-hazardous solvents depending on the specific facility protocol, but must be kept closed when not in use to prevent vapor accumulation. Preparation and Application

Monitoring: Users should check water levels on the system's indicator and top up the cooling circuit as needed. NALCO 93033 is a specialized cooling water treatment

Dilution: Specific concentrations depend on the system volume; users should refer to their equipment's technical manual (e.g., TRUMPF TT59EN) for precise dosing ratios. Nalco 93033 Chemical Treatment Overview | PDF - Scribd

Q2: How do I convert from a chromate program to Nalco 93033?

A: First, reduce hexavalent chromium to trivalent (using sodium metabisulfite). Flush system. Passivate with a high initial dose of 93033 (200-300 ppm) for 48 hours, then drop to maintenance levels.

2. Manufacturing Plants

Plastics, automotive parts, and metal stamping facilities rely on Nalco 93033 to maintain consistent cooling in injection molding machines and hydraulic oil coolers.

Typical Applications

Nalco 93033 is most commonly used in:

• Industrial Boilers: Especially those operating at medium to high pressures (often above 400-600 psi).
• Steam Generators: Where high-purity steam is required for processes or turbines.
• Condensate Systems: To protect return lines from oxygen attack.

What is Nalco 93033?

Nalco 93033 is a liquid cooling water treatment additive primarily used in open recirculating cooling water systems. It is classified as a stabilized phosphate-based corrosion inhibitor combined with a polymer dispersant. Industrial Boilers: Especially those operating at medium to

Unlike traditional formulations that rely heavily on heavy metals like chromate or zinc (which pose environmental disposal issues), Nalco 93033 employs a synergistic blend of:

• Orthophosphate: For anodic corrosion inhibition, forming a protective film on metal surfaces.
• Organic phosphonate (e.g., HEDP or AMP): For scale control and cathodic inhibition.
• Acrylic-based copolymer: To disperse suspended solids, prevent fouling, and keep heat transfer surfaces clean.
• Stabilizers: To ensure the product remains effective under high heat and variable pH conditions.

The unique formulation allows for operation at higher cycles of concentration (COC), meaning less blowdown, reduced water consumption, and lower overall operational costs.

Chemical Composition and Mechanism of Action

While the exact proprietary formula of Nalco 93033 is protected, technical data sheets and industrial analyses confirm it belongs to the family of stabilized phosphate-based inhibitors. Its key active ingredients include:

• Orthophosphate: Forms a protective passivation layer on metal surfaces (anodic inhibition).
• Polymer dispersants (e.g., acrylic or maleic copolymers): Prevent microcrystal growth of scale, keeping minerals suspended.
• Azole compounds (e.g., tolyltriazole): Provides specific protection for yellow metals like copper and brass, which are common in heat exchanger tubes.
• Stabilizers: Allow the formula to remain effective across a wide pH range (typically 6.5 to 9.0).

Case Study: Power Plant Efficiency Regained

A midwestern US coal-fired power plant was experiencing chronic scaling on its main condenser, leading to a 4-inch Hg backpressure increase. The plant was using a low-cost zinc-based program but saw tube fouling every 6 months.

After switching to Nalco 93033 at a feed rate of 60 ppm product, with a maintained orthophosphate residual of 6 mg/L and pH 7.8:

• Condenser vacuum improved within 4 weeks.
• Backpressure dropped to normal levels.
• Online cleaning frequency reduced from every 6 months to every 24 months.
• Annual water savings of 12 million gallons due to higher cycles (7 cycles vs. 4 cycles previously).

ROI: System paid for itself in 5 months via fuel savings and reduced maintenance labor.