Card Phenol Ethoxylates

Rishit Polysurf LLP is a premier manufacturer of specialty chemicals, operating from a state-of-the-art facility in GIDC Dholka, Ahmedabad, Gujarat, India. We deliver high-purity chemical intermediates formulated to meet rigorous global industrial standards.

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Product Overview

Card Phenol Ethoxylate is a range of bio-based nonionic surfactants produced by the ethoxylation of Cardanol — a naturally occurring phenolic compound derived from Cashew Nut Shell Liquid (CNSL), a renewable by-product of cashew processing. Unlike conventional nonylphenol ethoxylates synthesised from petroleum-derived feedstocks, the CP series draws on a hydrophobic backbone, making it the preferred choice for formulators operating under green chemistry frameworks, eco-label procurement policies, and voluntary restrictions on petroleum-based alkylphenol ethoxylates.

Card Phenol product

Technical Specifications — CP Product Range

Below are our standard CP grades as per our specification sheet.

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GradeHLBAppearance (25 °C)Moisture (%)pH (5% aq.)Hydroxyl Value (mg KOH/g)Cloud Point (°C)Color (Gardner)Pour Point (°C)
CP-1 (1 EO)2.5Reddish-Brown Liquid≤ 0.55.5–7.5160–165Insoluble10–14<0
CP-2 (2 EO)4.4Reddish-Brown Liquid≤ 0.55.5–7.5142–146Insoluble10–14<0
CP-5 (5 EO)8.4Brown Viscous Liquid≤ 0.55.5–7.5105–110Insoluble10–14<0
CP-6 (6 EO)9.3Brown Viscous Liquid≤ 0.55.5–7.597–102Insoluble10–140
CP-10 (10 EO)11.8Brown Viscous Liquid≤ 0.55.5–7.573–7848–52 (1% aq.)10–145
CP-12 (12 EO)12.7Brown Viscous/Paste≤ 0.55.5–7.565–7063–68 (1% aq.)10–1412
CP-13 (13 EO)13.1Dark Paste≤ 0.55.5–7.562–6770–75 (1% aq.)10–1415
CP-15 (15 EO)13.7Dark Paste/Solid≤ 0.55.5–7.556–6183–88 (1% aq.)10–1425
CP-20 (20 EO)14.8Waxy Solid≤ 0.55.5–7.546–51> 100 (1% aq.)10–1435

Core Applications

Our Card Phenol (Cardanol) Ethoxylate series delivers high-performance, bio-based surface activity across diverse industrial sectors. Derived from natural cardanol, these grades offer a clean-label replacement for conventional petroleum-derived alkylphenol ethoxylates without sacrificing formulation stability or performance.

1. Agrochemical Formulations (Emulsifiers & Adjuvants)

Cardanol ethoxylates provide exceptional spontaneous dispersion and foliar wetting for crop protection products, aligning with CIPAC, ISO, and EU Farm-to-Fork regulatory frameworks.

  • Emulsifiable Concentrates (EC): CP-5 (HLB 8.6) acts as a robust low-HLB emulsifier and can be blended with higher HLB grades to hit exact target windows for active ingredients and aromatic solvents.
  • Suspension Concentrates (SC) & WDGs: CP-10 (HLB 12.1) functions as an effective spreading and sticking adjuvant, reducing contact angles on waxy leaf cuticles to increase rain-fastness and uptake.
  • Recommended Grades: CP-5 (5–15% w/w in EC) | CP-10 (0.1–0.5% in spray volume).

2. Textile Wet Processing (Scouring & Dyeing Auxiliaries)

The CP series ensures rapid, uniform fibre wetting and contaminant removal across extreme pH and temperature ranges. Its bio-based origin supports compliance with ZDHC MRSL, Oeko-Tex Standard 100, and bluesign®.

  • Alkaline Scouring: Rapidly reduces interfacial tension in 60–90°C baths, removing hydrophobic waxes and sizing agents without damaging fibres.
  • Dyeing & Leveling: Retards dye strike rates to guarantee even colour distribution and eliminate shade variation.
  • Recommended Grade: CP-10 (HLB 12.1) — Dosage: 0.5–2.0 g/L (scouring); 0.2–0.5 g/L (dyeing).

3. Industrial & Institutional (I&I) Cleaning

Designed for heavy-duty degreasing and surface cleaning, these grades offer excellent rinseability and compatibility with anionic co-actives, supporting EU Ecolabel and US EPA Safer Choice formulations.

  • Neutral to Mild Alkaline Cleaners: CP-10 delivers near-cloud-point cleaning efficiency (57–60°C) for vehicle shampoos, floor degreasers, and all-purpose concentrates.
  • Heavy-Duty Alkaline Degreasers: CP-15 (HLB 13.9) remains stable in high-temperature (60–80°C) environments with high caustic loadings, ideal for ultrasonic baths, CIP systems, and metal component washing lines.
  • Recommended Grades: CP-10 (2–8% w/w) | CP-15 (3–10% w/w).

4. Metalworking Fluids & Lubricants

Delivering stable oil-in-water emulsions under sustained mechanical shear and high temperatures, the CP series is a superior alternative to standard NPEs in cutting and grinding fluids.

  • Enhanced Stability: Ensures mineral and ester base oils remain emulsified even in hard water conditions (up to 300 ppm CaCO₃).
  • Intrinsic Corrosion Inhibition: The phenolic ring structure of the cardanol backbone provides mild intrinsic rust inhibition, reducing required amine-based corrosion additives.
  • Recommended Grade: CP-5 (HLB 8.6) — Dosage: 3–8% w/w in neat oil; 2–6% in hydraulic emulsion concentrates.

Packaging & Supply

Rishit Polysurf LLP offers robust and compliant logistics infrastructure to supply materials globally. Standard packaging options include 50 kgs HDPE carboys, 200 kgs, 210 kgs, 220 kgs, 230 kgs, 235 kgs, 1000 kgs in IBC containers, ISO tanks & Tankers.

Frequently Asked Questions

Card Phenol Ethoxylate (CPE) is a bio-based nonionic surfactant produced by ethoxylating cardanol from Cashew Nut Shell Liquid (CNSL). It provides equivalent emulsification, wetting and detergency to NPEs while offering intrinsic mild corrosion inhibition, reactive-diluent compatibility in certain resins, and a renewable carbon origin that supports green procurement.

Rishit Polysurf produces the CP series across multiple EO grades. Nominal HLB and hydroxyl-value ranges are provided below — batch-specific CoA is supplied with every shipment.

  • CP-1 (1 EO) — HLB 2.5; Hydroxyl Value 160–165 mg KOH/g.
  • CP-2 (2 EO) — HLB 4.4; Hydroxyl Value 142–146 mg KOH/g.
  • CP-5 (5 EO) — HLB 8.4; Hydroxyl Value 105–110 mg KOH/g.
  • CP-6 (6 EO) — HLB 9.3; Hydroxyl Value 97–102 mg KOH/g.
  • CP-10 (10 EO) — HLB 11.8; Hydroxyl Value 73–78 mg KOH/g.
  • CP-12 (12 EO) — HLB 12.7; Hydroxyl Value 65–70 mg KOH/g.
  • CP-13 (13 EO) — HLB 13.1; Hydroxyl Value 62–67 mg KOH/g.
  • CP-15 (15 EO) — HLB 13.7; Hydroxyl Value 56–61 mg KOH/g.
  • CP-20 (20 EO) — HLB 14.8; Hydroxyl Value 46–51 mg KOH/g.

Typical specs: moisture ≤ 0.5%; pH (5% aq.) 5.5–7.5. For application-specific grade selection, request the batch CoA or contact our technical team.

Use CP-5 as the primary EC emulsifier (5–15% w/w in concentrate) and blend with CP-10 at 1:1 to 1:2 ratios to reach target HLB for specific actives and solvents. CP-10 is also effective as a spray adjuvant (0.1–0.5% in tank).
Yes. CP-5 is a direct technical replacement for NPE-5 in soluble cutting oils and semi-synthetic fluids, with added mild corrosion inhibition. Substitute at equivalent wt% and validate with your standard corrosion and emulsion stability tests.
Packing options: 50 Kg HDPE carboys, 200/210/220/230/235 Kg HDPE drums, 1,000 Kg IBC containers, ISO tanks and bulk tankers. MOQ for commercial pricing is 1 MT; blanket agreements available.
Hydroxyl value measures free -OH and falls with higher EO. CP-5: 100–110 mg KOH/g; CP-10: 66–76; CP-15: 33–43. Use HV for incoming QC and in reactive formulations (epoxy/PU); for typical surfactant uses it's a verification parameter.
Store at 15–40°C in sealed HDPE, IBC or stainless steel containers. Avoid strong oxidisers and reactive metals. Shelf life is 24 months from manufacture in sealed containers; warm to 30–40°C and mix if viscous below 15°C.