Mason Delacroix
Alcohol C-12 C-16 Poly (1-6) ethoxylate, also known as ethoxylated C12-16 ALCS, is a type of alcohol ethoxylate. Alcohol ethoxylates are synthesized through the reaction of a fatty alcohol and ethylene oxide. They are commonly used as components of cleaning detergents and formulations in industrial, commercial, and domestic markets. They are also used in personal care products such as shampoos and bath gels, as well as in agricultural and industrial processes.
| Characteristics | Values |
|---|---|
| Stability | Stable up to 50°C |
| Oxidation | Oxidizes on exposure to air to form peroxides and peracids |
| Combustibility | Combustible but not flammable (flash point > 179°C) |
| Auto-ignition temperature | 230°C |
| Reactivity | May react with strong oxidizing agents, strong acids, and strong bases |
| Incompatible materials | Copper, copper alloys, and aluminum |
| Synthesis | Treating a mixture of C-12 to C-16 alcohols with ethylene oxide |
| Classification | Liquids with this reactive group classification have been known to react with certain absorbents |
| Surfactant | Yes |
| Biodegradability | Biodegradable |
| Wetting | Efficient wetting |
| Detergency | Good detergency |
| Foaming | Low foaming |
| State at room temperature | Liquid |
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What You'll Learn
Alcohol C-12 C-16 Poly (1-6) ethoxylate is stable up to 50°C
The chemical compound Alcohol C-12 C-16 Poly (1-6) ethoxylate has a variety of properties, but one of its key characteristics is its stability. This substance is known to be stable up to a temperature of 50°C. Beyond this threshold, its behaviour may change.
This stability range is an important factor to consider when handling, storing, or transporting this chemical. It indicates that Alcohol C-12 C-16 Poly (1-6) ethoxylate can withstand moderately high temperatures without undergoing significant chemical changes. This knowledge is crucial for ensuring safe practices and maintaining the integrity of the substance during various processes.
However, it's worth noting that stability does not imply inertness. Even within the stable temperature range, Alcohol C-12 C-16 Poly (1-6) ethoxylate remains a reactive substance. When exposed to air, it can oxidize and form peroxides and peracids. This oxidation process contributes to its reactivity and potential hazards. Therefore, caution is advised when working with this chemical, even under seemingly stable conditions.
Additionally, Alcohol C-12 C-16 Poly (1-6) ethoxylate has a flash point above 179°C, classifying it as combustible but not flammable. Its auto-ignition temperature is 230°C. These properties further emphasize the need for careful handling and storage, especially in environments with potential heat sources or ignition points. Understanding the stability and reactivity characteristics of this chemical is essential for risk assessment and implementing appropriate safety protocols.
In summary, the statement "Alcohol C-12 C-16 Poly (1-6) ethoxylate is stable up to 50°C" highlights a critical aspect of this chemical's behaviour. It underscores the temperature threshold at which the substance remains stable, providing valuable information for safe handling, storage, and transportation practices. However, it's important to complement this knowledge with an understanding of its reactivity and potential hazards, even within the stable temperature range, to ensure comprehensive safety measures.
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It oxidises when exposed to air
Alcohol C-12 C-16 Poly (1-6) ethoxylate is a stable chemical up to temperatures of 50°C. However, one notable characteristic of this substance is its propensity to oxidize when exposed to air. This oxidation process results in the formation of peroxides and peracids.
The oxidation of Alcohol C-12 C-16 Poly (1-6) ethoxylate occurs due to its reaction with oxygen in the air. While the reaction with air is not rapid, it is significant enough to lead to the creation of these oxidation products. This behaviour distinguishes it from substances that exhibit rapid reactions with air, such as certain metals that quickly form oxide layers when exposed to oxygen.
The stability of Alcohol C-12 C-16 Poly (1-6) ethoxylate is also evident in its resistance to immediate combustion. It is classified as combustible but not flammable, with a flash point above 179°C. This means that while it can ignite and burn, it requires a relatively high temperature to do so. Its auto-ignition temperature, the temperature at which it will spontaneously ignite, is 230°C.
Additionally, Alcohol C-12 C-16 Poly (1-6) ethoxylate may react with strong oxidizing agents, strong acids, and strong bases. It is incompatible with copper and copper alloys, as well as aluminium. These reactions highlight the substance's reactivity and potential hazards when exposed to certain substances.
The oxidation of Alcohol C-12 C-16 Poly (1-6) ethoxylate upon exposure to air underscores the importance of understanding the chemical's behaviour and implementing necessary precautions during handling and storage. It is crucial to isolate and evacuate the area in the event of a spill or leak, as per the recommended precautionary measures.
Furthermore, the physical properties of Alcohol C-12 C-16 Poly (1-6) ethoxylate, such as its vapor pressure, boiling point, explosive limits, and toxic exposure thresholds, play a crucial role in understanding its behaviour and potential hazards. These properties influence how the chemical interacts with its surroundings, including its ability to sink or rise in air and its behaviour in fresh water. Therefore, a comprehensive understanding of these properties is essential for safe handling and transportation.
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It is combustible but not flammable
Alcohol C-12 C-16 Poly (1-6) ethoxylate is a combustible substance with a flash point above 179°C, but it is not flammable. Its auto-ignition temperature is 230°C. This substance is categorised as a low to moderate hazard, and it is important to exercise caution when handling it.
In the event of a small dry spill, use a clean shovel to place the material into a clean, dry container, covering it loosely, and then move the containers from the spill area. For a small spill, use sand or another non-combustible absorbent material to pick up the substance and place it into containers for later disposal. In the case of a large spill, dike far ahead of the liquid spill for later disposal. Cover powder or liquid spills with a plastic sheet or tarp to minimise spreading and prevent entry into waterways, sewers, basements, or confined areas.
It is important to note that alcohol C-12 C-16 Poly (1-6) ethoxylate oxidises when exposed to air, forming peroxides and peracids. It may also react with strong oxidising agents, strong acids, and strong bases. This substance is incompatible with copper and copper alloys, as well as aluminium.
When handling or responding to a spill of alcohol C-12 C-16 Poly (1-6) ethoxylate, it is crucial to wear a positive pressure self-contained breathing apparatus (SCBA) and follow isolation and evacuation procedures as necessary.
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It may react with strong acids and bases
Alcohol C-12 C-16 Poly (1-6) ethoxylate is a mixture of polyether alcohols of formula R-O-(CH2CH2-O-)n-H where R is a C-12 through C-16 alkyl group and n equals 1 through 6. It is stable up to 50°C, but oxidises when exposed to air, forming peroxides and peracids. It has a combustion flash point of >179°C and an auto-ignition temperature of 230°C.
This substance may react with strong acids and bases. It is also incompatible with copper and copper alloys, aluminium, and strong oxidising agents. It is important to note that liquids with this reactive group classification have been known to react with certain absorbents.
In the event of a spill, it is crucial to exercise caution. For a small dry spill, use a clean shovel to place the material into a clean, dry container, covering it loosely, and then move the containers from the spill area. A small liquid spill can be picked up with sand or another non-combustible absorbent material and placed into containers for later disposal. In the case of a large spill, dike far ahead of the liquid spill for later disposal, and cover any powder with a plastic sheet or tarp to minimise spreading. It is imperative to prevent entry into waterways, sewers, basements, or confined areas.
The recommended response guidelines for this substance include isolation and evacuation distances, as well as specific instructions for firefighting, non-fire response, protective clothing, and first aid. It is important to follow these guidelines to ensure the safe handling and management of Alcohol C-12 C-16 Poly (1-6) ethoxylate.
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It is incompatible with copper and aluminium
Alcohol C-12 C-16 Poly (1-6) ethoxylate is a mixture of polyether alcohols synthesized by treating a mixture of C-12 to C-16 alcohols with ethylene oxide. It is combustible but not flammable, with a flash point of >179°C and an auto-ignition temperature of 230°C. This chemical may react with strong oxidizing agents, strong acids, and strong bases. Notably, it is incompatible with copper and its alloys, as well as aluminium.
The incompatibility of Alcohol C-12 C-16 Poly (1-6) ethoxylate with copper and aluminium is primarily due to the galvanic corrosion that occurs between these metals. Galvanic corrosion, also known as bimetallic corrosion, takes place when two dissimilar metals are in contact with each other and are exposed to an electrically conductive medium, such as an electrolyte (in this case, the ethoxylate solution). This sets up a galvanic cell, with one metal acting as the anode and the other as the cathode, creating a flow of electrons between them.
In the case of copper and aluminium, copper is the nobler metal, and aluminium is the baser metal. When exposed to a corrosive medium, such as the ethoxylate solution, the corrosive medium tries to steal electrons from the copper. However, since copper has a greater affinity for electrons, it immediately steals an electron back from the aluminium. This results in the aluminium atom being corroded into solution, while the copper atom remains relatively unaffected.
The galvanic corrosion between copper and aluminium is further exacerbated in moist environments. The presence of moisture or electrolytic solutions increases the conductivity between the two metals, accelerating the corrosion process. This is why, even in applications where there is no direct fluid contact, such as in heat transfer coils or solar collectors, the combination of copper and aluminium is often avoided to prevent premature failure due to corrosion.
To mitigate the issue of galvanic corrosion between metals, it is recommended to use non-conductive materials like plastic or rubber to separate dissimilar metals. Additionally, applying protective coatings to one or both metals can prevent direct contact and reduce the risk of corrosion. These measures help to ensure the integrity of the materials and prevent premature degradation or failure.
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Frequently asked questions
Alcohol C-12 C-16 Poly (1-6) Ethoxylate is a compound synthesized by treating a mixture of C-12 to C-16 alcohols with ethylene oxide.
It is a mixture of polyether alcohols of formula R-O-(CH2CH2-O-)n-H where R is a C-12 through C-16 alkyl group and n equals 1 through 6.
It is stable up to 50°C, combustible but not flammable (flash point > 179°C), and has an auto-ignition temperature of 230°C. It may react with strong oxidizing agents, strong acids, and strong bases, and is incompatible with copper, copper alloys, and aluminum.
Alcohol C-12 C-16 Poly (1-6) Ethoxylate is used in various applications such as detergents, emulsifiers, personal care products, and industrial processes like oilfield, emulsion polymerization, textile paints, and agriculture.
Alcohol C-12 C-16 Poly (1-6) Ethoxylate should be handled with caution as it can react with certain absorbents and oxidize when exposed to air, forming peroxides and peracids. In case of a spill, the area should be isolated and evacuated.
