Nalco 77352 Sds May 2026
This report provides a comprehensive overview of the NALCO 77352
Safety Data Sheet (SDS), focusing on its chemical properties, critical hazards, and safety protocols for industrial applications. Product Overview NALCO 77352 is a broad-spectrum, non-oxidizing biocide developed by
for controlling microbiological growth in industrial water systems. It is specifically designed to be effective even at higher pH values, helping to maintain system efficiency and prevent microbial corrosion. turquoise-az.com Primary Uses
: Open and closed-loop cooling systems, process water systems, air washers, and brewery pasteurizers. Key Advantage : Unlike some biocides, its stabilizer does not contain copper
, making it safe for use in closed-loop systems without increasing copper content. turquoise-az.com Hazard Identification NALCO 77352 is classified as a corrosive chemical
. Due to its high toxicity, strict adherence to safety protocols is mandatory. Health Hazards
: Corrosive; causes irreversible eye damage and permanent tissue damage. : Causes severe skin burns and may cause allergic skin reactions Inhalation/Ingestion nalco 77352 sds
: Harmful if inhaled or swallowed; inhalation may cause irritation to the respiratory system. Environmental Impact
: Very toxic to aquatic organisms with potential long-lasting effects. files.dep.state.pa.us Chemical Composition The product is a blend of isothiazolinone biocidal agents. Key hazardous ingredients include: Lenntech Water treatment 5-Chloro-2-methyl-4-isothiazolin-3-one 2-Methyl-4-isothiazolin-3-one Magnesium Nitrate files.dep.state.pa.us Physical & Chemical Properties
NALCO 77352NA Safety Data Sheet | PDF | Fires | Poison - Scribd
This guide outlines the safety and handling requirements for NALCO® 77352
, a non-oxidizing biocide primarily used to control microorganisms and fungi in industrial water systems. Product Overview
Broad-spectrum biocide and fungicide used in open recirculating cooling systems, closed-loop systems, air washers, and brewery pasteurizers. Composition: This report provides a comprehensive overview of the
A blend of Isothiazolin-3-one agents (1–5%), magnesium nitrate (1–5%), and magnesium chloride (1–5%). Key Benefit:
Does not contain copper, making it suitable for copper-sensitive closed-loop systems. turquoise-az.com Hazard Identification According to the NALCO 77352 SDS (2020) , the product is classified with the following GHS hazards: Corrosive: Causes severe skin burns and serious eye irritation. Sensitizer: May cause an allergic skin reaction.
Harmful if swallowed or inhaled; toxic to aquatic life with long-lasting effects. Signal Word: First Aid Measures Immediate action is required for exposure: Eyes/Skin:
Rinse immediately with plenty of water for at least 15 minutes, removing contaminated clothing. Inhalation/Ingestion: Move to fresh air or rinse mouth; do not induce vomiting and seek immediate medical attention. Safe Handling & Storage
Ensure adequate ventilation, avoid breathing vapors/mists, and prevent contact with skin/eyes.
Keep in original, tightly closed containers in a cool, well-ventilated area, away from incompatibilities like strong oxidizers or reducing agents. Materials: Stability: Stable under normal conditions
Use compatible materials (e.g., stainless steel, high-density polyethylene) and avoid incompatible materials such as mild steel. NALCO 77352 Safety Data Sheet | PDF - Scribd
Section 10: Stability and Reactivity
- Stability: Stable under normal conditions.
- Hazardous polymerization: Will not occur.
- Conditions to avoid: Extreme temperatures, freezing (can break emulsion or concentrate certain components).
Section 7: Handling and Storage
- Handling: Use with adequate ventilation (local exhaust if misting possible). Avoid freezing.
- Storage: Store in original container in a cool, dry area away from incompatible materials (strong oxidizers or reducing agents). Keep container tightly closed when not in use.
- Incompatibilities: Avoid mixing with strong acids or bases without specific engineering controls.
Introduction: What is Nalco 77352?
In the world of industrial water treatment, few names carry as much weight as Nalco Water, an Ecolab company. Among their extensive portfolio of specialty chemicals is product code Nalco 77352. While the exact proprietary name can vary based on regional labeling, Nalco 77352 is generally classified as a performance-boosting additive used in recirculating cooling water systems, boilers, or closed loops. Its primary functions typically include deposit control, corrosion inhibition, or scale prevention.
However, no industrial chemical should be handled without its authoritative safety document. This is where the SDS (Safety Data Sheet)—formerly known as the MSDS—becomes critical. If you are searching for the Nalco 77352 SDS, you are likely responsible for: complying with OSHA HazCom 2012 (or global GHS standards), writing a job safety analysis (JSA), training employees, or responding to a spill.
This article breaks down everything you need to know about the Nalco 77352 Safety Data Sheet, including its 16 sections, hazard identification, storage requirements, and emergency protocols.
6. Accidental Release Measures
- Personal Precautions: Isolate the spill area. Wear appropriate PPE (gloves, goggles, face shield, and protective clothing). Avoid contact with skin and eyes.
- Environmental Precautions: Prevent the product from entering drains, sewers, or waterways. The high pH of the product can be harmful to aquatic life.
- Clean-up Methods: Contain the spill with inert material (sand, earth, or vermiculite). Absorb the liquid and place it in a suitable container for disposal according to local regulations. Residue may be slippery; rinse the area thoroughly with water.
Section 6: Accidental Release Measures
- Personal Precautions: Wear chemically resistant gloves (nitrile) and safety goggles.
- Containment: Dike far ahead of liquid spill to prevent entry into sewers or waterways.
- Cleanup: Absorb with inert material (sand, vermiculite) and place in a chemical disposal container.
Critical Sections from the SDS (What you are looking for)
If you need to handle a spill or conduct a safety training, here are the three most vital sections you will find on the official Nalco 77352 SDS:
Section 9-11: Physical, Chemical, and Toxicological Data
- Appearance: Clear, pale yellow to amber liquid.
- pH (100%): 11.0 – 12.5 (Highly alkaline – reason for eye/skin hazard)
- Odor: Mild amine or ammonia-like.
- Acute Toxicity: Oral LD50 (rat) > 2000 mg/kg (low acute oral toxicity, but alkaline burns are the risk).


