An SDS is required by law (OSHA, GHS, REACH) to communicate hazards, handling, and emergency measures. Below is a critical review of the typical sections of the Nalco 73385 SDS.
Environmental note: Nalco 73385 is not classified as RCRA hazardous waste under most conditions, but local regulations may apply. Check Section 13 of the SDS.
While the exact formulation of Nalco 73385 is proprietary, the SDS must disclose hazardous ingredients per GHS. Based on typical Nalco scale inhibitors, expected components may include:
Critical: Always refer to the specific SDS for the lot number of Nalco 73385 you possess. Formulations can vary by region or production date.
Do not rely on generic sheets. To get the official, legally compliant SDS:
Warning: Many websites claim to host “free MSDS” but may have outdated or manipulated copies. Always download directly from the manufacturer or a verified regulatory database.
The keyword "Nalco 73385 MSDS" is still widely searched, but note: The Occupational Safety and Health Administration (OSHA) phased out MSDS in 2012 in favor of the 16-section SDS aligned with the Globally Harmonized System (GHS).
You may encounter legacy 8- or 9-section MSDS documents. Always insist on the GHS-compliant 16-section SDS. It provides clearer hazard communication, standardized pictograms, and more precise exposure limits.
The Nalco 73385 MSDS is not a document to file and forget. It is a living guide that, when integrated with proper training and engineering controls, allows your facility to benefit from superior corrosion protection without endangering your workforce or the environment. Always verify that you have the latest version directly from Ecolab’s website or your authorized distributor, and never hesitate to contact Nalco Water’s technical service department for application-specific questions.
Staying safe means staying informed. Keep the MSDS accessible, understood, and respected.
Disclaimer: This article is provided for informational purposes only and does not substitute for the official SDS issued by the manufacturer. Always follow the specific instructions on the SDS for the exact product lot and date of manufacture.
NALCO 73385 is a broad-spectrum biocide used primarily in industrial water systems. It is effective at controlling microbial growth, including bacteria, fungi, and algae, which can cause biofouling and corrosion in cooling towers and geothermal systems. 🛡️ Hazards Identification
According to standard Safety Data Sheets (SDS) for this class of industrial biocides:
Acute Toxicity: May be harmful if swallowed or inhaled in concentrated forms.
Skin & Eye Irritation: Causes severe skin burns and eye damage; classified as corrosive.
Sensitization: May cause an allergic skin reaction in some individuals.
Environmental Impact: Highly toxic to aquatic life with long-lasting effects. 🧪 Composition and Handling
Primary Function: Biocontrol for industrial cooling and process water. Personal Protective Equipment (PPE): Wear chemical-resistant gloves (nitrile or neoprene). Use safety goggles or a full-face shield.
Wear a protective apron or chemical suit to prevent skin contact. nalco 73385 msds
Storage: Store in a cool, dry, well-ventilated area away from direct sunlight and incompatible materials like strong oxidizers. 🚑 Emergency First Aid
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes; seek medical attention.
Skin Contact: Wash immediately with soap and water; remove contaminated clothing.
Inhalation: Move to fresh air; if breathing is difficult, provide oxygen and call a doctor.
Ingestion: Do not induce vomiting; rinse mouth and drink plenty of water; seek immediate medical help. 🌍 Environmental & Disposal
Spill Containment: Stop leaks if safe; use inert absorbent material (sand or earth) to soak up the liquid.
Disposal: Dispose of contents and containers in accordance with local and national regulations; do not discharge directly into surface waters or sewers. Regulatory Context
In New Zealand, NALCO 73385 is used in projects like the Taheke Geothermal Project, where its application is strictly monitored under environmental resource consents to prevent contamination of fresh water aquifers. For specific discharge limits, you can review the draft conditions provided by the Environmental Protection Authority (EPA).
A standout feature of Nalco 73385 High-pH Stability and Persistency
, which makes it exceptionally effective for specialized water treatment environments. HKCT Malaysia Key Feature: High-pH Stability & Persistency
Unlike many traditional biocides that lose efficacy in alkaline conditions, Nalco 73385 maintains its performance even at elevated pH levels. HKCT Malaysia Targeted Microbial Control : It is highly effective at controlling slime-forming sulfate-reducing bacteria (SRB)
, which are common culprits for under-deposit corrosion and reduced heat transfer efficiency. Ideal for Closed Loops
: Because it is persistent (it doesn't break down quickly), it is particularly suited for closed-loop systems where long-term protection is needed without frequent redosing. Non-Oxidizing Action
: As a non-oxidizing biocide, it provides a "slug" dose alternative to chlorine or bromine, which can be harsh on system components if over-applied. HKCT Malaysia Quick Physical Specs (from Safety Data) Colorless to Yellow Solubility Complete in water Freezing Point –21°C (with complete freeze-thaw recovery)
For full handling and safety protocols, including first aid measures for eye or skin contact, always refer to the official Nalco 73385 Safety Data Sheet compatibility with other water treatment chemicals like Trasar? Others: NALCO 73385 - HKCT Malaysia
NALCO 73385 a broad-spectrum, non-oxidizing biocide primarily used in recirculating cooling towers and closed-loop systems
. It is specifically engineered to control slime-forming and sulfate-reducing bacteria, remaining effective even at elevated pH levels. www.hkct.com.my Summary of Safety Data Sheet (SDS) Information
While full Safety Data Sheets are typically provided directly by Ecolab/Nalco Water An SDS is required by law (OSHA, GHS,
, the following safety and physical data is standard for this product: www.ecolab.com
May cause irritation with prolonged contact to eyes and skin. Ingestion:
Not a likely route of exposure, but can cause nausea, vomiting, and gastrointestinal irritation if swallowed. Physical Properties: Colorless to yellow. pH (Neat): 1.13 kg/L. Flammability: Not flammable or combustible. First Aid Measures: Eye/Skin Contact:
Immediately flush with plenty of water. If irritation persists, seek medical advice. Ingestion:
induce vomiting unless directed by medical personnel. Rinse mouth and seek medical attention if symptoms occur. Storage & Handling: Stability: Stable under normal conditions. Incompatibilities: Avoid contact with strong acids and strong bases. Storage Conditions:
Protect from freezing; keep at temperatures above -17°C (-21°C freezing point). www.hkct.com.my Environmental & Disposal Information Aquatic Impact:
Biocides in this category are typically toxic to aquatic life; avoid release into drains or soil.
Dispose of contents and containers in accordance with local and national regulations at an approved waste disposal facility. files.dep.state.pa.us
This guide provides a comprehensive overview of Nalco 73385, a non-oxidizing biocide commonly used in industrial water systems. Product Overview
Nalco 73385 is a broad-spectrum, non-oxidizing biocide designed for use in recirculating cooling towers and closed-loop systems. It is particularly effective at controlling: Slime-forming bacteria. Sulfate-reducing bacteria.
Biofilms, which can reduce heat transfer efficiency and cause under-deposit corrosion.
Its efficacy at elevated pH and persistent nature make it an ideal choice for closed water loops. Safety & Health Hazards
According to Material Safety Data Sheet (MSDS) data for this product and its variants, the following hazards should be noted:
Eye Contact: May cause irritation with prolonged contact. Some variants (like Nalco 7338) may cause severe irritation or tissue damage.
Skin Contact: Prolonged contact may cause irritation or allergic reactions in sensitive individuals.
Ingestion: While not a likely route of exposure, it is corrosive and can cause chemical burns to the mouth, throat, and stomach.
Inhalation: High concentrations of mist or vapors may irritate the respiratory tract and lungs. Safe Handling & First Aid Instructions If Swallowed
Do not induce vomiting. Call a poison control center or doctor immediately. If in Eyes Critical: Always refer to the specific SDS for
Wash immediately and continuously with flowing water for at least 30 minutes. If on Skin
Wash immediately with plenty of water and mild soap. Remove contaminated clothing. Storage
Store in a cool, well-ventilated area away from incompatible materials. Fire & Environmental Data
Fire Safety: The product is not flammable or combustible. However, under fire conditions, it may evolve hazardous oxides of carbon ( COxcap C cap O sub x ) or phosphorus ( POxcap P cap O sub x
Environmental Impact: If released, the material is expected to distribute primarily between water (50-70%) and soil (30-50%). It is not expected to bioaccumulate. How to Obtain the Official SDS
Ecolab (Nalco's parent company) generally does not provide Nalco-specific Safety Data Sheets (SDS) for public download online. To get the most recent, official version: Others: NALCO 73385 - HKCT Malaysia
Others: NALCO 73385 - HKCT Malaysia | Hoe Kee Chan Trading Sdn Bhd (600713-M) Back to: Others. NALCO 73385. SKU: Category: Others. HKCT Malaysia
Formulario de solicitud de SDS / MSDS | Nalco Water - Ecolab
Target Systems: Industrial cooling towers, heat exchangers, and geothermal well applications.
Action: Rapidly reduces bio-fouling and inhibits the growth of algae, bacteria, and fungi that cause corrosion or reduced heat transfer. ⚠️ Safety & Hazard Profile
Classification: Typically classified as a hazardous chemical due to its biocidal nature.
Acute Toxicity: Often carries "Corrosive" or "Irritant" warnings; can cause severe skin burns and eye damage if handled improperly.
Environmental Impact: Highly toxic to aquatic life; SDS guidelines strictly prohibit direct discharge into natural water bodies without treatment. Personal Protective Equipment (PPE): Chemical-resistant gloves (Nitrile or Neoprene). Splash-proof safety goggles or full-face shield. Protective apron or chemical suit for bulk handling. 📋 Regulatory & Handling Review
Storage: Must be stored in a cool, well-ventilated area away from incompatible substances like strong oxidizing agents.
Disposal: Waste must be managed according to local environmental regulations, such as those overseen by the Environmental Protection Authority (EPA). First Aid: Eyes: Flush immediately with water for at least 15 minutes.
Ingestion: Do not induce vomiting; seek medical attention immediately. 💡 Operational Verdict
NALCO 73385 is an aggressive but effective solution for persistent biological issues. It is most effective when used as part of a managed chemical program where dosage is monitored to prevent system corrosion while maintaining microbial control.
clean version (DOCX, 1.5B) - Environmental Protection Authority