PWT Lavasol 9 is a liquid alkaline cleaner designed for membranes. Ideal for industrial and home care surface cleaning applications.

RTU Product Type: Alkaline Cleaners, Cleaner

Application Area: Membranes

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Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
Product Benefits
  • Concentrated liquid cleaner provides efficient shipping and handling
  • Buffered pHto maintain optimum cleaning performance throughout cleaning cycle
  • Best resultswhen used in conjunction with either Lavasol 1 or Lavasol 6.
  • Classified for use in membrane systems producing drinking water (ANSI/NSF Standard 60)

Applications & Uses

Markets
Applications
Application Area
Mixing Instructions
  • Inspect all cleaning system components to include CIP tank, hoses, and cartridge filters. Flush or replace if necessary. Fill cleaning tank with RO permeate or DI water. Turn on agitator or tank recirculation pump.
  • Slowly add LavasolTM 9 to cleaning tank (1 gal [3.8 L] of LavasolTM for every 50 gal [189 L] of water). Mix thoroughly. The solution pH should match product specification. If necessary, adjust pH with a membrane–approved chemical such as caustic, citric, sulfuric or hydrochloric acid. The solution should be heated up to 45 ̊C to improve cleaning efficacy.
  • Circulate solution in the same direction as the feed flow. Typical circulation times are 30-90 minutes.* PWT recommends cleaning each stage of the system separately. Maximum flow rate per pressure vessel is 40 gpm (152 Lpm) for 8-inch elements and 10 gpm (38 Lpm) for 4-inch elements. Maximum pressure for cleaning is 60 psig (4.2 kg/cm2).
  • In cases of heavy fouling, divert the first 10-20% of cleaning solution to drain to prevent re-deposition of removed solids.
  • Rinse with RO permeate before returning system to service. When returning unit to service, divert product water to drain until any residual cleaning solution has been rinsed from system.
Product Uses
  • For use on reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF) and micro-filtration (MF) membranes
  • Formulated to dissolve organic foulants from the membrane surface
  • To aid in the removal of particulate, colloidal, microbiological and other acid insoluble foulants

Properties

Physical Form
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Freezing Point0°C-
Specific Gravity1 - 1.2--
Boiling Point100°C-
pH (at 2% Solution)12 - 13--
Vapor Pressure (at 20°C)17mmHg-
Volatility Percent70 - 80%-
Densityapprox. 9lb/gal-
Soluble inWater--
AppearancePale yellow--
Vapor DensitySame as air--
Evaporation RateSame as water--

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Technical Details & Test Data

Note

* : Depending on the nature of the fouling, a soak period may be necessary for optimum results. Please contact PWT or your local distributor for custom cleaning procedure, or consult PWT’s Technical Bulletin 503 for further cleaning recommendations.

Packaging & Availability

Supplied by
Packaging Information
  • Pail: 5 gallon/18.9 liter
  • Drum: 55 gallon/208 liter
  • Tote: 275 gallon/1,040 liter