NALCO 77352 is a broad-spectrum, non-oxidizing biocide designed to control microbiological growth in industrial water systems, including cooling towers, process water, and brewery pasteurizers. It is a liquid blend of isothiazolin-3-one active agents, typically appearing colorless to light yellow with a pungent odor. Hazard Identification
This product is classified as a corrosive chemical and a skin sensitizer.
Physical Hazards: Can cause irreversible eye damage and severe skin burns. nalco 77352 msds
Health Hazards: Harmful if swallowed or inhaled. Prolonged exposure may cause allergic skin reactions.
Environmental Hazards: Highly toxic to aquatic life with long-lasting effects. Composition & Chemical Properties Active Ingredients Wash affected area with soap and lukewarm water
5-Chloro-2-methyl-4-isothiazolin-3-one (1–5%), 2-Methyl-4-isothiazolin-3-one (0.1–1%) Hazardous Additives Magnesium Nitrate (1–5%) pH (Neat) 3.0 – 5.0 (Acidic) Density 1.01 – 1.03 kg/L Solubility Complete in water Handling and First Aid
Always refer to the official Ecolab SDS portal for the most current safety documentation. Safety Data Sheets - SDS - MSDS - Ecolab 3.2 Skin Contact
Important Notice Regarding "MSDS" vs. SDS: Under the Globally Harmonized System (GHS), Material Safety Data Sheets (MSDS) have been replaced by Safety Data Sheets (SDS). Regulatory bodies like OSHA (in the US) and ECHA (in the EU) now require the 16-section SDS format. Therefore, while this report references historical MSDS data, it is structured as a modern SDS compliance report.
Based on the official MSDS guidelines, here is the required first-aid response for exposure to Nalco 77352: