Nalco 77352 Msds Patched May 2026
NALCO 77352 broad-spectrum, non-oxidizing biocide primarily used to control microorganisms in industrial water systems like cooling towers and brewery pasteurizers. Because it is copper-free, it is often chosen for closed-loop systems where copper accumulation is a concern. turquoise-az.com Key Safety & Chemical Features According to the NALCO 77352 Safety Data Sheet Product Overviews , the product has the following critical profiles: Hazard Profile : Classified as GHS Category 2/2A for skin and eye irritation. It is a known skin sensitizer and can cause allergic reactions. Active Ingredients : Typically contains a mixture of Isothiazolinones
(specifically 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one), Magnesium Nitrate, and Magnesium Chloride. Physical Properties Appearance : Yellow to colorless liquid with a pungent odor. : Highly acidic, typically ranging from 2.0 to 5.0 Solubility : Completely soluble in water. Environmental Impact toxic to aquatic life
(LC50 for rainbow trout is approx. 12 mg/l) and harmful with long-lasting effects. files.dep.state.pa.us Safe Handling & Storage Personal Protective Equipment (PPE) nitrile or butyl rubber gloves nalco 77352 msds
, safety goggles, and a face shield. For large-scale handling, a chemical-resistant suit is recommended. Material Compatibility Compatible : PVC, Polyethylene (PE), Teflon, and Stainless Steel 316L.
: Aluminum, Brass, and Carbon Steel, as the neat product can corrode these materials. Signal Word: WARNING or DANGER (depending on concentration
: Store in original, tightly closed containers in a cool, well-ventilated area. It is recommended to use the product within 6 to 12 months
For the most official and site-specific version, you can request a direct copy through the Ecolab SDS Request Form dosage recommendations for a cooling system, or do you need help identifying compatible pump materials NALCO® 77352NA strong oxidizing agents
PHYSICAL AND CHEMICAL PROPERTIES. ... SPECIFIC GRAVITY 1.02 @ 60 °F / 15.5 °C DENSITY 8.5 lb/gal SOLUBILITY IN WATER Complete pH ( files.dep.state.pa.us NALCO 77352 Safety Data Sheet | PDF - Scribd
Important Disclaimer Regarding Safety Data Sheets (SDS) Before proceeding, it is critical to note that Material Safety Data Sheets (MSDS) are now obsolete under OSHA’s Hazard Communication Standard (HCS). They have been replaced by Safety Data Sheets (SDS), which follow a standardized 16-section format established by the Globally Harmonized System (GHS). Always ensure you are referencing the most current SDS (typically dated within the last 3-5 years) from the manufacturer.
2.2 Signal Word
- Signal Word: WARNING or DANGER (depending on concentration of caustic components). Most recent SDS revisions use DANGER due to eye corrosion potential.
Occupational Exposure Limits (OELs):
No specific OELs established for the mixture. However, for phosphonates and acrylic polymers, general nuisance dust or mist limits apply (e.g., ACGIH TLV of 10 mg/m³ for inhalable particles).
10. Stability and Reactivity
- Stability: Stable under normal conditions of use and storage.
- Incompatible Materials: Strong alkalis (exothermic reaction), strong oxidizing agents, metals (may corrode if not passivated).
- Hazardous Decomposition: Thermal decomposition can produce phosphorus oxides and carbon oxides.
Engineering Controls:
- Local exhaust ventilation to maintain airborne levels below exposure limits.
- Eyewash stations and safety showers must be immediately adjacent to the work area.