The Safety Data Sheet (SDS) for NALCO® 77352 (also referred to as 77352NA) identifies it as a broad-spectrum, non-oxidizing biocide primarily used to control microbiological growth in industrial water systems.
The following information summarizes the key sections typically found in its SDS: 1. Product Identification Product Name: NALCO® 77352
Recommended Use: Biocide for industrial water systems, such as cooling towers and process water. Manufacturer: Nalco Company (an Ecolab Company).
Emergency Phone: (800) 424-9300 (CHEMTREC) for 24-hour assistance. 2. Hazards Identification
According to the NALCO 77352 SDS, the product is classified as hazardous with the following signals:
Classification: Corrosive, Skin Irritation (Category 2), Eye Irritation (Category 2A), and Skin Sensitization (Category 1).
Health Risks: Causes irreversible eye damage and skin burns; harmful if inhaled or swallowed. nalco 77352 sds
Environmental Risks: Toxic to aquatic life with long-lasting effects. 3. Composition / Ingredients
The formula contains isothiazolinones (5-chloro-2-methyl-2H-isothiazol-3-one and 2-methyl-2H-isothiazol-3-one) combined with magnesium nitrate and chloride. 4. First Aid Measures
Action: Immediate medical attention is required for eye/skin contact (flush for 15 minutes) or ingestion; remove contaminated clothing. NALCO® 77352NA
In the sterile, humming environment of the Midland Water Treatment Plant, Nalco 77352 was known as "The Guardian." It wasn't a person, but a high-performance coagulant—a chemical specialized in turning murky, sediment-filled water into something crystal clear.
One Tuesday morning, a rookie technician named Elias was tasked with the routine inventory check. He found the familiar blue drum of Nalco 77352, but as a safety-first worker, he didn't just move it; he pulled up the Safety Data Sheet (SDS).
As Elias read through the document, the "story" of the chemical unfolded: The Safety Data Sheet (SDS) for NALCO® 77352
The Identity: He confirmed it was a cationic polyelectrolyte, designed specifically to bind tiny particles together so they could be filtered out.
The Caution: The SDS warned him that while it was a hero for water, it was a "slip hazard" on the floor. If spilled, the concentrated liquid would become as slick as ice—a hidden trap for the unwary.
The Protection: He noted the requirement for nitrile gloves and safety goggles. Nalco 77352 was powerful, and the SDS made it clear that while it cleaned the city's water, it shouldn't meet his skin or eyes.
The Environmental Pact: Finally, the sheet reminded him that though it helps treat water, the concentrated form should never be released directly into nature.
Elias closed the SDS folder, donned his gear, and handled the drum with newfound respect. Thanks to the "story" told by the SDS, the plant stayed safe, the water stayed clean, and the "Guardian" did its job without a single slip.
Disclaimer: The following information is based on standard data available for Nalco 77352 (typically identified as a corrosion inhibitor). This document is for informational purposes only and is not a substitute for the official Safety Data Sheet (SDS) provided by the manufacturer (Ecolab/Nalco). Always consult the official SDS and product label before handling. Personal Precautions: Isolate the spill area
Nalco Water (now a division of Ecolab) is protective of its intellectual property. Unlike generic bleach or lye, NALCO 77352 is a proprietary blend. Most manufacturers do not post full SDS sheets on public, unsecured websites because:
While specific trade-secret additives may exist, the primary active ingredient in Nalco 77352 is typically a silicate-based compound.
Myth 1: "It’s just a polymer – no need for gloves."
Fact: The SDS clearly states skin and eye irritation. Repeated contact without gloves can cause dermatitis.
Myth 2: "The supplier gave us one SDS in 2020 – we’re fine."
Fact: Nalco updates their SDS periodically (new GHS rules, ingredient changes, or exposure limits). You must have the current version, typically within 5 years or after any significant change.
Myth 3: "You can mix it with acid to clean the system faster."
Fact: The SDS Section 10 lists incompatibilities. Mixing with strong acids can cause violent reaction or release toxic fumes. Always consult Nalco’s application engineering team before mixing chemistries.
Product Class: Neutralizing Amine Condensate Treatment
Water treatment chemicals are regulated under the Toxic Substances Control Act (TSCA) in the U.S. and REACH in Europe. Without the current SDS:
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