NALCO 77352 is a broad-spectrum, non-oxidizing biocide manufactured by
. It is primarily used to control microorganisms like bacteria and algae in industrial water systems, including open recirculating cooling systems, process water, and brewery pasteurizers. turquoise-az.com 1. Hazard Identification
According to the Safety Data Sheet (SDS), NALCO 77352 is classified as a hazardous chemical with the following risks: Health Hazards : May be harmful if swallowed or inhaled. It causes skin irritation serious eye irritation . It can also cause an allergic skin reaction. Physical Hazards non-flammable and non-combustible. Environmental Hazards toxic to aquatic life
and can cause long-lasting harmful effects in water environments. files.dep.state.pa.us 2. Composition & Ingredients The product is a liquid blend containing: Active Ingredients
: A mixture of 5-chloro-2-methyl-2H-isothiazol-3-one and 2-methyl-2H-isothiazol-3-one (CMIT/MIT) at 1–5% concentration. Stabilizers/Salts
: Magnesium Nitrate (1–5%) and Magnesium Chloride (1–5%).
: The stabilizer does not contain copper, making it safe for use in closed-loop systems where copper accumulation is a concern. turquoise-az.com 3. Physical & Chemical Properties Form/Color : Yellow liquid with a pungent odor. : 2.0 to 5.0 (acidic). : Approximately 1.02 g/cm³ (8.5 lb/gal). Solubility : Completely soluble in water. Boiling Point : 100°C (212°F). files.dep.state.pa.us 4. Handling, Storage, & First Aid Protective Equipment (PPE)
: Use nitrile or butyl rubber gloves, safety goggles, and a face shield. Ensure adequate ventilation; a respirator with an A-P filter may be required if vapors are present.
: Keep in a cool, well-ventilated place in original labeled containers. Storage for more than is not recommended. Incompatible Materials
: Avoid contact with strong alkalies (like ammonia or caustic soda), as this may generate heat and toxic vapors.
: Flush with water for at least 15 minutes and seek medical attention. : Rinse mouth with water. Do NOT induce vomiting unless directed by medical personnel. files.dep.state.pa.us 5. Accidental Release & Disposal
Small spills should be contained with absorbent material like sand or earth. A deactivation solution
(5% sodium bicarbonate and 5% sodium hypochlorite) can be used to treat residual spills. Disposal must follow local regulations and occur at an approved waste facility. nalco 77352 sds
For the most up-to-date and region-specific version, you can request an SDS directly through the Ecolab SDS portal dosage rates for specific industrial systems or information on material compatibility for your equipment? NALCO® 77352NA
Nalco 77352 liquid oxygen scavenger and metal passivator based on carbohydrazide
, typically used in boiler water systems to prevent corrosion
. Below is a summary of the content typically found in its Safety Data Sheet (SDS). 1. Product Identification Product Name: Nalco 77352
Oxygen scavenger / Corrosion inhibitor for boiler water treatment. Nalco Water, an Ecolab Company. 2. Hazards Identification Classification: Skin Sensitization (Category 1) Chronic Aquatic Toxicity (Category 2) Signal Word: Hazard Statements: May cause an allergic skin reaction. Toxic to aquatic life with long-lasting effects. Precautionary Statements:
Avoid breathing dust/fume/gas/mist/vapors/spray. Wear protective gloves and eye protection. 3. Composition/Information on Ingredients Main Active Ingredient: Carbohydrazide (CAS No: 497-18-7) Concentration:
Typically 1% – 5% (Check specific SDS version for exact concentration). 4. First-Aid Measures
Rinse immediately with plenty of water for at least 15 minutes. Seek medical attention if irritation persists.
Wash off immediately with soap and plenty of water. Remove contaminated clothing. If a rash occurs, seek medical advice. Inhalation: Move to fresh air. Treat symptomatically. Ingestion:
Rinse mouth. Do NOT induce vomiting. Seek medical attention if symptoms develop. 5. Fire-Fighting Measures Extinguishing Media: Use water spray, foam, or dry chemical. Special Hazards:
Thermal decomposition can lead to the release of irritating gases and vapors, including nitrogen oxides ( cap N cap O sub x ) and carbon oxides. 6. Accidental Release Measures Personal Precautions:
Use personal protective equipment (PPE). Stop leak if safe to do so. Environmental Precautions: Section 12-15: Ecological and Regulatory Information
Prevent discharge into lakes, streams, or ponds as it is toxic to aquatic life.
Soak up with inert absorbent material (e.g., sand, silica gel). Flush the area with water after collection. 7. Handling and Storage
Use in well-ventilated areas. Wash hands thoroughly after handling.
Keep container tightly closed in a dry, cool, and well-ventilated place. Keep from freezing. 8. Physical and Chemical Properties Physical State: Clear, colorless to light yellow 8.0 – 9.0 (approximate) Specific Gravity: Solubility: Completely soluble in water 9. Stability and Reactivity Stability: Stable under normal conditions. Incompatible Materials: Strong oxidizing agents, strong acids. Hazardous Decomposition: Oxides of carbon and nitrogen. 10. Ecological Information Ecotoxicity:
This product is classified as toxic to aquatic organisms. It should not be released directly into the environment without treatment.
NALCO 77352 is a corrosive, non-oxidizing biocide designed for controlling microbial growth in industrial water systems, featuring active isothiazolinone agents. It is classified as a skin irritant, eye irritant, and skin sensitizer that requires specific PPE, including goggles and gloves, to manage hazardous exposure. For the most current official version, you can request an SDS directly through the Ecolab SDS Portal. NALCO 77352 Safety Data Sheet | PDF - Scribd
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.
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.
If you are building a software tool to manage this product, here are features relevant to Nalco 77352:
Disclaimer: Nalco 77352 is a chemical product. Always consult the official Safety Data Sheet (SDS) and local regulations before handling or implementation. The features above describe the typical application of neutralizing amines in boiler water treatment. Ecotoxicology: Toxic to fish and algae
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 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.
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.
Dispose of contents and container in accordance with local, regional, and national regulations. As a chemical waste, it should not be discharged into the sewer system without proper permits. It is often classified as hazardous waste due to its corrosivity (high pH).
A: No. While similar, the numeric suffix indicates different concentration strengths or additive packages (e.g., 77350 may lack a specific biocide). Never substitute based on name alone; always cross-reference SDS and PDS (Product Data Sheet).