Question

What is isooctanol penetrant OE-35

Answer
2026-05-17 官方文档 异辛醇渗透剂OE-35

Isooctanol penetrant OE-35 is a nonionic surfactant with isomeric alcohol polyoxyethylene ether as the active ingredient, designed for high-speed, high-efficiency industrial penetration needs. It plays a key role in industries such as textiles, leather, and metal treatment due to its extremely fast wetting ability, broad chemical compatibility, and low-foaming properties.

Detailed Explanation

Isooctanol penetrant OE-35 (CAS No.: 68439-51-0), chemical name isooctanol polyoxyethylene (35) ether, also known as 2-ethylhexanol polyoxyethylene ether or polyoxyethylene isooctyl ether, is a high-performance nonionic surfactant produced by Haian Guoli Chemical Co., Ltd. This product has isomeric alcohol polyoxyethylene ether as the core active ingredient, which can quickly wet various fibers and solid surfaces upon contact, strongly carrying the working liquid into micropores and gaps, thereby achieving excellent penetration effects.

OE-35 has excellent chemical stability, maintaining stable activity in different pH treatment environments, and shows good resistance to high-concentration electrolytes and hard water ions. At the same time, this product exhibits low-foaming tendency under room temperature and elevated temperature applications, effectively reducing interference of foam on mechanical operation and significantly lowering subsequent rinsing difficulty and water consumption. Additionally, OE-35 demonstrates efficient emulsifying and degreasing performance, capable of solubilizing and dispersing industrial oils and natural waxes at low temperatures.

In formulation, OE-35 has good compatibility with nonionic, anionic, and cationic auxiliaries, and can enhance the spreading and adsorption capacity of the overall formulation as a synergistic component. It is an ideal penetration-enhancing component in industrial formulations.

Technical Parameters

Parameter ItemParameter Details
Product NameIsooctanol penetrant OE-35
CAS No.68439-51-0
Chemical NameIsooctanol polyoxyethylene (35) ether / 2-ethylhexanol polyoxyethylene ether
Product TypeNonionic surfactant
Active IngredientIsomeric alcohol polyoxyethylene ether
AppearanceLiquid (specific color not given in database, please refer to actual product)
IonicityNonionic type
HLB ValueNot available
Cloud PointNot available
pH AdaptabilityWide pH range, stable to acid and alkali
Skin IrritationPrimary irritation index < 0.5, non-irritating to skin
Eye IrritationMildly irritating, fully reversible within 72 hours
Acute Oral ToxicityRat LD50 > 5,000 mg/kg (low toxicity)
BiodegradabilityReadily biodegradable (OECD test)

Application Recommendations

Isooctanol penetrant OE-35 has a wide range of applications, mainly covering the following scenarios:

  • Textile Printing and Dyeing: Used in pretreatment processes such as desizing, scouring, bleaching, and mercerizing for cotton, linen, and blended fabrics. As a high-efficiency penetrant, it improves capillary effect and whiteness, laying a foundation for subsequent dyeing and printing.
  • Leather Chemical Industry: Applied in wet processing stages such as soaking, degreasing, and tanning to accelerate the penetration of chemicals into leather fibers, efficiently emulsify and remove natural fats, improving leather softness and yield.
  • Metal Surface Treatment: Used in combination with acid pickling or alkaline cleaning agents to quickly strip cutting fluids, anti-rust oils, and dirt from metal components, especially suitable for deep cleaning of precision parts.
  • Pesticide Adjuvant: Used in formulations such as suspension concentrates and soluble concentrates to significantly reduce the surface tension of the spray liquid, improve retention and systemic conduction efficiency on hydrophobic leaf surfaces, and enhance control efficacy.
  • Paper Industry: As a cooking or deinking penetration aid, it promotes chemical penetration and improves pulp bleaching efficiency and sizing uniformity.
  • Daily Chemical and Industrial Cleaning: Suitable for formulations such as laundry detergents and hard surface cleaners, helping active ingredients penetrate the soil-matrix interface and dislodge stubborn stains.

Precautions

  • When handling, wear chemical safety goggles and nitrile gloves, and ensure the operating area is well-ventilated.
  • Avoid contact with eyes and skin; do not eat, drink, or smoke during operation.
  • Store in a cool, dry, well-ventilated warehouse with ambient temperature maintained at 5–35°C, and keep containers sealed.
  • Store separately from incompatible substances such as strong acids and strong oxidizing agents to avoid reactions.
  • In case of leakage, small spills can be absorbed with sand or inert material; for large spills, build dikes to prevent product from entering drains or water bodies.
  • If eye contact occurs, rinse with running water continuously for at least 15 minutes and seek medical attention; for skin contact, wash thoroughly with soap and water for at least 10 minutes.
  • This product is not classified as a hazardous substance (GHS 7th edition), but standard chemical handling procedures should still be followed.