Ethoxylated C9-11 Alcohol with 6 EO Units

# Ethoxylated C9-11 Alcohol with 6 EO Units: A Versatile Surfactant

## Introduction to C9-11 Pareth 6

C9-11 Pareth 6, also known as ethoxylated C9-11 alcohol with 6 ethylene oxide (EO) units, is a nonionic surfactant widely used in various industrial and consumer applications. This chemical compound belongs to the family of alcohol ethoxylates, which are known for their excellent surface-active properties.

## Chemical Structure and Properties

The molecular structure of C9-11 Pareth 6 consists of a C9-11 alcohol chain (containing 9 to 11 carbon atoms) ethoxylated with an average of 6 ethylene oxide units. This structure gives the compound its amphiphilic nature:

– Hydrophobic tail: C9-11 alcohol chain
– Hydrophilic head: 6 EO units

Key physical properties include:

• Appearance: Clear to slightly hazy liquid

• Solubility: Soluble in water and most organic solvents

• HLB value: Approximately 12-13 (moderate hydrophilicity)

• Cloud point: Around 40-50°C (for 1% aqueous solution)

## Manufacturing Process

The production of C9-11 Pareth 6 involves the ethoxylation of C9-11 fatty alcohols with ethylene oxide in the presence of a catalyst. The reaction typically occurs under controlled temperature and pressure conditions to ensure the desired degree of ethoxylation (6 EO units on average).

## Applications in Various Industries

### 1. Cleaning Products

C9-11 Pareth 6 is extensively used in household and industrial cleaning formulations due to its excellent wetting, emulsifying, and detergent properties. It’s commonly found in:

• Dishwashing liquids

• All-purpose cleaners

• Hard surface cleaners

• Laundry detergents

### 2. Personal Care Products

In cosmetics and personal care formulations, this surfactant serves as a mild cleansing agent and emulsifier. Typical applications include:

• Shampoos and body washes

• Facial cleansers

• Shaving products

### 3. Industrial Applications

Beyond consumer products, C9-11 Pareth 6 finds use in various industrial processes:

• Textile processing

• Agricultural formulations

• Metalworking fluids

• Paint and coatings

## Advantages Over Other Surfactants

C9-11 Pareth 6 offers several benefits that make it preferable to other surfactants in many applications:

• Excellent balance between hydrophilic and lipophilic properties

• Good compatibility with other formulation ingredients

• Relatively low irritation potential compared to some anionic surfactants

• Effective performance in both hard and soft water

• Biodegradable under appropriate conditions

## Environmental and Safety Considerations

While C9-11 Pareth 6 is generally considered safe for its intended uses, proper handling procedures should always be followed:

• Use appropriate personal protective equipment when handling concentrated forms

• Avoid direct contact with eyes and prolonged skin contact

• Store in well-ventilated areas away from strong oxidizers

The compound is readily biodegradable under aerobic conditions, with degradation rates typically exceeding 60% within 28 days in standard tests.

## Future Outlook

As industries continue to seek effective yet environmentally responsible surfactants, C9-11 Pareth 6 remains a strong candidate due to its balanced performance profile. Ongoing research focuses on optimizing its production processes and exploring new application areas while maintaining its