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Nalco 2593 MSDS — Overview

Nalco 2593 is a commercial chemical formulation produced for industrial water treatment (scale and corrosion control, dispersant, or related functions). An MSDS (Material Safety Data Sheet; also called SDS under GHS) for Nalco 2593 contains the safety, handling, transport, and regulatory information employers and workers need to manage risks when using the product.

Below is a structured, general write-up summarizing the typical contents and key points you should expect in an MSDS/SDS for a product like Nalco 2593. This is a template-style summary and not a substitute for the actual, product-specific SDS — always obtain the manufacturer’s current SDS before handling the chemical. nalco 2593 msds

10. Stability and Reactivity (Section 10)

  • Stability: Stable under normal temperatures and pressures.
  • Hazardous decomposition products: Thermal breakdown can release phosphine (PH₃) under extreme heat, and carbon oxides.
  • Incompatible materials: Strong alkalis (caustic soda), chlorine, hypochlorites, and reactive metals (Al, Mg, Zn).
  • Hazardous polymerization: Will not occur.

5. Fire Fighting Measures

  • Flash Point: Not applicable (aqueous solution, will not burn).
  • Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide for surrounding fires.
  • Special Hazards: Decomposes at high temperatures (>200°C / 392°F) to release toxic fumes (e.g., hydrogen chloride, nitrogen oxides, carbon monoxide).
  • Protective Equipment: Self-contained breathing apparatus (SCBA) and full firefighting turn-out gear.

8. Exposure controls / personal protection

  • Occupational exposure limits: SDS will list any applicable limits (e.g., ACGIH TLVs, OSHA PELs) for components, if available.
  • Engineering controls: Local exhaust or general ventilation to control airborne exposure.
  • PPE: Chemical-resistant gloves, safety goggles/face shield, protective clothing; respiratory protection if exposure limits exceeded or when ventilation is inadequate.

8. Exposure Controls and Personal Protection (Section 8)

| Exposure Limit | Value | |----------------|-------| | NALCO 2593 (as a mixture) | No specific OSHA PEL or ACGIH TLV. | | Component (phosphonate) | Manufacturer recommends 10 mg/m³ (total dust) – but for liquid, use engineering controls. | Nalco 2593 MSDS — Overview Nalco 2593 is

Engineering controls: Local exhaust ventilation (LEV) or closed systems. Stability: Stable under normal temperatures and pressures

Personal Protective Equipment (PPE) mandatory per MSDS:

  • Respiratory: If misting occurs, use NIOSH-approved N95 or full-face respirator with acid gas/organic vapor cartridges.
  • Hands: Neoprene, nitrile, or butyl rubber gloves (minimum thickness 0.4 mm, breakthrough time > 480 min).
  • Eyes: Chemical splash goggles with face shield.
  • Skin: Acid-resistant apron and closed-toe rubber boots.

Product Identity & Purpose

  • Product Name: Nalco 2593
  • Typical Use: Industrial water treatment – prevents scale (calcium carbonate, etc.) and controls corrosion in open recirculating cooling water systems.
  • Appearance: Clear to hazy, colorless to pale yellow liquid.
  • Key Components (proprietary but typical): Phosphonates (e.g., HEDP, ATMP), copolymer dispersants, and a copper corrosion inhibitor (e.g., tolyltriazole).

Section 5: Firefighting Measures

  • Flash point: > 200°F (93°C) – not flammable.
  • Extinguishing media: Use water spray, alcohol-resistant foam, CO2, or dry chemical.
  • Special hazards: Thermal decomposition may release phosphine oxides and carbon monoxide.

Section 16: Other Information

Date of last revision, disclaimer, and NFPA ratings (typically Health: 3, Fire: 0, Reactivity: 0).

Section 15: Regulatory Information

  • TSCA (US): All components are listed.
  • SARA 313: No reportable ingredients.
  • WHMIS (Canada): Not a controlled product under old WHMIS, but classified under GHS.