Surfactants in Industry: How to Minimize Risks During Handling and Storage

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Surfactants, whether anionic, cationic, nonionic, or amphoteric, play a key role in industrial applications—from cleaning and emulsification to surface modification. However, their chemical nature entails specific risks, such as irritancy, toxicity to aquatic organisms, or flammability of certain types. Safe handling and storage of these substances require knowledge of their properties, proper technical equipment, and compliance with legislative requirements, particularly REACH and CLP regulations. This article focuses on practical measures to help minimize risks and ensure safe operations in facilities where surfactants are used.

Key Properties of Surfactants and Their Impact on Safety

Surfactants, also known as surface-active agents, are chemical compounds that reduce surface tension between two phases, making them indispensable in many industrial applications. Their structure contains a hydrophilic (water-attracting) and a hydrophobic (water-repelling) part, enabling emulsification, wetting, foaming, or cleaning. However, these properties also introduce specific risks during handling and storage. For example, anionic surfactants can be irritating to the skin and mucous membranes, while non-ionic variants often exhibit lower toxicity but may be sensitive to temperature fluctuations or microbial contamination.

When working with surfactants, it is crucial to know their physico-chemical parameters, such as flash point, pH of the solution, or stability under various temperature conditions. For instance, cationic surfactants, often used as disinfectants, can be corrosive or reactive with other chemicals. It is always necessary to follow safety data sheets (SDS) in accordance with REACH and CLP regulations, which provide information on classification, labelling, and recommended protective measures. Without these guidelines, handling surfactants could lead to accidents such as chemical burns, allergic reactions, or environmental contamination.

Safe Handling of Surfactants: Protective Equipment and Work Procedures

Handling surfactants requires adherence to strict safety rules to minimize the risk of employee exposure and workplace contamination. The basic measure is the use of personal protective equipment (PPE), which includes chemically resistant gloves (e.g., nitrile or butyl rubber), safety goggles with side shields, and, when working with powdered forms, respirators with appropriate filters. For work with concentrated solutions or highly volatile substances, it is recommended to use protective clothing made of chemical-resistant materials, such as Tyvek.

An important aspect is also the correct handling technique. When pouring or dosing surfactants, it is necessary to work slowly and in a controlled manner to prevent splashing or aerosol formation. Containers with surfactants should only be opened in well-ventilated areas or under a fume hood to reduce vapor concentration. In the event of a spill, it is essential to follow the emergency plan, which includes neutralizing or absorbing the spilled substance using suitable sorbents. Regular training of employees in first aid and emergency procedures is crucial to ensure a rapid and effective response in case of an accident.

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Storage of surfactants: conditions and compatibility with other substances

Proper storage of surfactants is crucial for maintaining their quality and preventing hazardous situations such as leaks, fires, or chemical reactions. Surfactants should be stored in their original, well-labeled containers with intact closures to prevent contamination or evaporation. Storage areas must be dry, cool, and well-ventilated, with temperatures maintained within the range recommended by the manufacturer – typically between 10 and 25 °C. Some surfactants, particularly those with a low freezing point, may require heated spaces to avoid crystallization or phase separation.

Another important factor is compatibility with other stored chemicals. Surfactants should not be stored together with oxidizing agents, strong acids, or bases, which could trigger undesirable reactions. For example, anionic surfactants may react with cationic substances to form insoluble precipitates, which can lead to pipe blockages or equipment damage. Storage areas should be equipped with an emergency ventilation system and leak detectors to minimize the risk of vapor accumulation or the formation of explosive mixtures. Regular inspections of storage conditions and container integrity are essential to ensure long-term stability and safety.

Emergency situations and disposal: how to proceed in case of leaks or contamination

In the event of a surfactant leak, emergency procedures must be activated immediately to minimize harm to health, property, and the environment. The first step is to evacuate affected individuals and secure the area to prevent further spread of the substance. For minor leaks, absorbent materials such as inert sorbents or sand can be used to bind the liquid. For larger leaks, it is necessary to follow a pre-established emergency plan, which may include the use of special neutralizing agents or pumping the substance into safety containers.

The disposal of surfactants and contaminated materials must comply with applicable legislation and manufacturer recommendations. Surfactants cannot simply be poured into sewers or regular waste, as they may cause water source pollution or disrupt the operation of wastewater treatment plants. Instead, they should be handed over to a specialized company dealing with hazardous waste disposal. When handling contaminated materials, it is necessary to use protective equipment and follow the instructions in the safety data sheet. Regular emergency drills and employee training in chemical disposal help increase preparedness and response efficiency in the event of a real incident.

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Preventing electrostatic charge when working with surfactants

Surfactants, particularly non-ionic and anionic types, can generate electrostatic charge under certain conditions. This most commonly occurs during pumping, mixing, or transferring liquids with low electrical conductivity, which is typical for many industrial surfactants. The risk increases at low air humidity (below 30% relative humidity) or when using unsuitable materials, such as plastic containers without antistatic treatment. Electrostatic discharge can lead to ignition of flammable vapours, damage to sensitive electronic equipment, or unexpected reactions with other chemicals.

To minimise the risk, it is essential to use earthed metal containers and piping, especially when handling larger volumes. For plastic packaging, it is necessary to verify that it meets the requirements for antistatic properties according to applicable standards. Furthermore, it is recommended to maintain relative air humidity in the workspace within the range of 40–60% and to use air ionisers in areas with a high risk of charge build-up. Workers should wear antistatic clothing and footwear with conductive soles to prevent charge accumulation on their bodies.

Effect of Temperature and Light on Surfactant Stability During Storage

Temperature and light are key factors affecting the stability of surfactants during storage. High temperatures (above 40 °C) can accelerate the degradation of certain surfactants, particularly those with ester or amide bonds, leading to a reduction in their effectiveness or the formation of undesirable by-products. Conversely, low temperatures (below 0 °C) can cause crystallisation or separation of components in some formulations, making their subsequent use more difficult. The ideal storage temperature for most surfactants ranges between 10 and 25 °C.

Light, particularly UV radiation, can initiate photochemical reactions that lead to the degradation of sensitive surfactants, such as certain non-ionic types. Therefore, it is advisable to store these substances in opaque or dark-colored containers and protect them from direct sunlight. For some surfactants, it may be necessary to add stabilizers, such as antioxidants, to extend their shelf life. Regular monitoring of storage conditions and visual inspection of containers helps to detect early any changes in consistency, color, or odor that may indicate degradation.

Employee Training and Documentation: Key Tools for Safety

Safe handling of surfactants requires not only technical measures but also appropriate knowledge and skills of employees. Regular training should include information on the physicochemical properties of the surfactants used, risks associated with their handling and storage, proper use of protective equipment, and procedures for emergency situations. Training should be tailored to the specific substances and processes used in the company and should be repeated at least once a year or when new procedures or materials are introduced.

An important part of the safety system is also proper documentation. Each batch of surfactants should be accompanied by a Safety Data Sheet (SDS) in accordance with REACH and CLP regulations, which contains all relevant information about the substance, including instructions for safe storage, handling, and disposal. It is also necessary to maintain records of training, storage condition checks, and any incidents. These documents not only assist in internal audits and inspections by regulatory authorities but also serve as a basis for improving safety measures in the company.

Need advice on selecting or handling surfactants?

Every industrial raw material requires an individual approach – from storage conditions to protective equipment. GCG Group provides detailed Safety Data Sheets (SDS) and technical support for each product, so you can work with surfactants safely and efficiently. Contact us – or browse our catalog of over 1,300 products right away.