EQ‑501 Reverse Osmosis Membrane Cleaning Agent (Acidic Liquid)

1. Product PerformanceEQ‑501 reverse osmosis membrane cleaning agent is a low‑pH liquid‑formula cleaner used to remove scaling deposits of metal hydroxides, calcium carbonate and other salts.

LH-103 Heavy Degreaser (5kg)
  • EQ‑501 Reverse Osmosis Membrane Cleaning Agent (Acidic Liquid)
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  • Product details
  • 1. Product Performance

    EQ‑501 reverse osmosis membrane cleaning agent is a low‑pH liquid‑formula cleaner used to remove scaling deposits of metal hydroxides, calcium carbonate and other salts. It is applicable to aromatic polyamide reverse osmosis membranes, hollow‑fiber membranes, nanofiltration (NF) and ultrafiltration (UF) membranes. Its excellent cleaning performance can extend the operating time of membranes. 


    ▲ Adjust pH of diluted solution to 2.0‑4.0. 

    ▲ As a liquid chemical, it shortens mixing time and is miscible with water in any proportion. 

    ▲ JQSY membrane cleaning agent features low‑foam formulation and is suitable for all aromatic polyamide membranes and cellulose acetate membranes.

    2. Technical Specifications

    ItemSpecification
    AppearanceColorless to pale‑yellow transparent liquid
    pH (1% solution)1.5±1.0
    Specific Gravity (20℃, g/cm³)1.08±0.05

    3. Dosing Instructions

    Calculate the proper dosing concentration according to water quality analysis report and system conditions. This acidic reverse osmosis cleaning agent is normally added into the cleaning tank. The working concentration recommended by JQSY technical engineers is 2‑4 %.

    4. Cleaning Instructions

    ▲ Inspect and flush the whole RO cleaning system to keep it clean. 

    ▲ Before cleaning, identify the contamination type and root cause of RO membrane elements for targeted cleaning. 

    ▲ After cleaning, analyze the causes of contamination and implement corresponding pre‑treatment preventive measures. 

    ▲ During cleaning, keep the temperature of cleaning solution within the required range of 25‑35 ℃ at all times. 

    ▲ Adopt the flow rate recommended by the original manufacturer of reverse osmosis membrane cleaning agent. In addition, flow rate and soaking duration shall be determined according to contamination type and severity of membrane elements. If no recommended value is available, technical engineers from JQSY can provide guidance based on actual system conditions. 

    ▲ For heavily contaminated systems, consult technical engineers from JQSY for an optimized cleaning procedure. 

    ▲ For multi‑stage RO systems, clean each stage separately for better results. If the cleaning solution turns turbid or pH goes beyond the recommended range, re‑prepare the solution or add supplementary acidic reverse osmosis cleaning agent. Thoroughly rinse the system with RO product water before putting it back into service.

    5. Packaging & Storage

    ※ Packed in plastic drums, 20 kg or 25 kg per drum. ※ Stable physical‑chemical properties. Store in cool place. Shelf‑life: 2 years.

    6. Safety & Protection

    For EQ‑501 Reverse Osmosis Membrane Cleaning Agent (Acidic Liquid), take proper labor protection during operation. Avoid contact of the cleaning agent with skin and eyes. In case of contact, rinse with plenty of clean water.


    1. Product Performance

    EQ‑501 reverse osmosis membrane cleaning agent is a low‑pH liquid‑formula cleaner used to remove scaling deposits of metal hydroxides, calcium carbonate and other salts. It is applicable to aromatic polyamide reverse osmosis membranes, hollow‑fiber membranes, nanofiltration (NF) and ultrafiltration (UF) membranes. Its excellent cleaning performance can extend the operating time of membranes. 


    ▲ Adjust pH of diluted solution to 2.0‑4.0. 

    ▲ As a liquid chemical, it shortens mixing time and is miscible with water in any proportion. 

    ▲ JQSY membrane cleaning agent features low‑foam formulation and is suitable for all aromatic polyamide membranes and cellulose acetate membranes.

    2. Technical Specifications

    ItemSpecification
    AppearanceColorless to pale‑yellow transparent liquid
    pH (1% solution)1.5±1.0
    Specific Gravity (20℃, g/cm³)1.08±0.05

    3. Dosing Instructions

    Calculate the proper dosing concentration according to water quality analysis report and system conditions. This acidic reverse osmosis cleaning agent is normally added into the cleaning tank. The working concentration recommended by JQSY technical engineers is 2‑4 %.

    4. Cleaning Instructions

    ▲ Inspect and flush the whole RO cleaning system to keep it clean. 

    ▲ Before cleaning, identify the contamination type and root cause of RO membrane elements for targeted cleaning. 

    ▲ After cleaning, analyze the causes of contamination and implement corresponding pre‑treatment preventive measures. 

    ▲ During cleaning, keep the temperature of cleaning solution within the required range of 25‑35 ℃ at all times. 

    ▲ Adopt the flow rate recommended by the original manufacturer of reverse osmosis membrane cleaning agent. In addition, flow rate and soaking duration shall be determined according to contamination type and severity of membrane elements. If no recommended value is available, technical engineers from JQSY can provide guidance based on actual system conditions. 

    ▲ For heavily contaminated systems, consult technical engineers from JQSY for an optimized cleaning procedure. 

    ▲ For multi‑stage RO systems, clean each stage separately for better results. If the cleaning solution turns turbid or pH goes beyond the recommended range, re‑prepare the solution or add supplementary acidic reverse osmosis cleaning agent. Thoroughly rinse the system with RO product water before putting it back into service.

    5. Packaging & Storage

    ※ Packed in plastic drums, 20 kg or 25 kg per drum. ※ Stable physical‑chemical properties. Store in cool place. Shelf‑life: 2 years.

    6. Safety & Protection

    For EQ‑501 Reverse Osmosis Membrane Cleaning Agent (Acidic Liquid), take proper labor protection during operation. Avoid contact of the cleaning agent with skin and eyes. In case of contact, rinse with plenty of clean water.