Nalco 2593 Msds -
If you (or staff) have known skin allergies or prior reactions to preservatives/isothiazolinones, avoid direct contact and consider substituting to reduce occupational health risk.
—March 23, 2026
If you want, I can extract and summarize exact SDS section text (composition, exposure limits, and recommended PPE) from a specific Nalco/Ecolab SDS if you provide the file or want me to request it.
Nalco 2593 is a specialized non-oxidizing microbiocide primarily used to control bacteria, algae, and fungi in industrial water systems. Because it is classified as a hazardous chemical, having the Material Safety Data Sheet (MSDS)—now more commonly referred to as the Safety Data Sheet (SDS)—is essential for safe handling and regulatory compliance. What is Nalco 2593?
Nalco 2593 is a liquid biocide formulation designed for industrial cooling towers, closed-loop cooling systems, and air washers. It is often used in food processing facilities for treating boilers and steam lines, provided that the steam or treated water does not come into direct contact with edible products. Chemical Family: Isothiazolinone.
Active Ingredients: Typically contains 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one. Physical State: Liquid. Key Sections of the Nalco 2593 MSDS/SDS
An MSDS provides critical information across several sections to ensure workplace safety. For Nalco 2593, the following sections are of particular importance: 1. Hazard Identification Nalco 2593 is classified as a corrosive material. nalco 2593 msds
Health Hazards: It can cause severe skin burns and permanent eye damage. It is also a known skin sensitizer, meaning repeated exposure can lead to allergic reactions.
Environmental Hazards: As a biocide, it is highly toxic to aquatic life and must be prevented from entering natural waterways. 2. First Aid Measures In the event of exposure, immediate action is required:
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, holding eyelids open. Seek urgent medical attention.
Skin Contact: Remove contaminated clothing and wash the skin thoroughly with soap and water.
Ingestion: Do not induce vomiting. Rinse the mouth with water and contact a poison control center immediately. 3. Handling and Storage
Isothiazolinone Microbiocide Safety Guide | PDF | Waste - Scribd If you (or staff) have known skin allergies
NALCO 2593 is a specialized, high-performance scale and deposit control agent widely used in industrial water treatment, particularly in cooling water systems, boilers, and once-through systems. However, before any facility integrates this product into their operations, the Material Safety Data Sheet (MSDS) — now commonly referred to as the Safety Data Sheet (SDS) under GHS (Globally Harmonized System) — must be thoroughly understood.
This article provides an in-depth review of the NALCO 2593 MSDS, breaking down its key sections, hazard classifications, first-aid measures, handling protocols, and regulatory implications.
Action dictated by Section 4: Immediate 15-minute rinse, seek medical attention. The MSDS forewarns that eye damage is serious and potentially irreversible without rapid action.
The NALCO 2593 MSDS is not a one-time download to be filed away. It is a dynamic risk communication tool. As you scale water treatment operations, change injection points, or train new personnel, revisit the SDS. It answers not just “Is this dangerous?” but “How dangerous, under what conditions, and with what controls?”
Remember: No summary, including this article, replaces the official document. Always keep the most current NALCO 2593 SDS in your central safety repository, at your loading dock, and accessible to your emergency response team.
Disclaimer: This article is for informational purposes only and does not constitute professional safety or legal advice. Product formulations change; always refer to the latest SDS provided by NALCO Water / Ecolab for specific regulatory and safety information. NALCO 2593 is a specialized, high-performance scale and
Need the official document?
Visit Ecolab.com → SDS Search → Enter “2593”. Or call 1-800-352-5326.
Most industrial SDS sheets for this product class rate it as moderately hazardous – not extreme like concentrated acids, but not harmless.
| Hazard Category | Typical Rating | Key Phrase | |----------------|----------------|-------------| | Eye Damage | Category 1 (Serious) | Causes serious eye irritation/damage. | | Skin Corrosion | Category 2 (Mild) | Causes skin irritation. | | Acute Toxicity (Oral) | Category 4 | Harmful if swallowed. | | Aquatic Toxicity | Category 3 | Harmful to aquatic life (due to phosphonates). |
Notable omissions: Not flammable, not an oxidizer, not a respiratory sensitizer under normal use.
Final Note for Users: NALCO 2593 is an effective coagulant but requires careful handling due to its eye/skin irritancy and aquatic toxicity. Always use secondary containment during storage and ensure spill kits are available where the product is used.
Many people still search for “MSDS,” but under OSHA’s Hazard Communication Standard (HCS 2012) aligned with GHS revision 3 & 4, the document is now an SDS with 16 mandatory sections. If you have an old NALCO 2593 MSDS (pre-2015), you should replace it with the current SDS.
Key changes you will see in the new SDS for NALCO 2593: