SCI Sodium Cocoyl Isethionate CAS 61789-32-0

It is mild, has good foaming properties, does not react with hard water or alkali soaps, and is stable both in cold and hot water.

Description of SCI Sodium Cocoyl Isethionate ：

Chemical structure: The chemical structure of sodium isothiocyanate in which sulfur-carbon double bonds replace one or more carbon-carbon double bonds compared to traditional sodium cocoate. This special structure makes sodium isothiocyanate have unique chemical properties and reactivity.

Physical state and appearance: Sodium isothiocyanate usually appears as a yellowish-to-yellowish solid or liquid, depending on its purity and preparation method. 

Surface activity: Sodium isothiocyanate has excellent surface activity due to its special chemical structure. It can reduce the surface tension of water, produce a rich foam, and has good wetting, emulsifying, dispersing, and solubilizing abilities. These properties make it widely used in many industrial fields.

Stability and oxidation resistance: Compared with traditional sodium cocoate, sodium isothiocyanate has improved stability, especially under oxidized conditions. This makes it advantageous in certain application scenarios that require a stable existence for a long time.

Biodegradability: Although sodium isothiocyanate may be slightly less biodegradable than traditional sodium cocoate, it still has some biodegradability. Under the right conditions, microorganisms can degrade it and reduce its long-term environmental impact.

Toxicity: As with all surfactants, the toxicity of sodium isothiocyanate depends on several factors, including purity, concentration, time and method of exposure. Under normal conditions of use, sodium isothiocyanate is considered to be low toxic, but appropriate safety measures still need to be taken to prevent accidental exposure and ingestion.

Technical Parameter SCI Sodium Cocoyl Isethionate

Applications of SCI Sodium Cocoyl Isethionate: 

Personal Care and Cosmetics: Sodium isothiocyanate is used as an emulsifier, wetting agent and dispersant in the personal care and cosmetics field. It helps to improve the product's stability, wettability, and flexibility, making the product easy to apply and absorb and improving the feeling of use. It is used in cosmetics such as face cream, sunscreen, lipstick, foundation and personal hygiene products such as shampoo and body wash. Due to its good surface activity and mild properties, sodium isothiocyanate is less irritating to the skin and eyes and has good safety.

Textile and dyeing: In the textile industry, sodium isothiocyanate is widely used as a softener, antistatic, and fabric treatment agent. It can improve the feel of the fabric, antistatic properties, and anti-fouling, as well as improve the wearing comfort and durability of the fabric. At the same time, in the printing and dyeing process, sodium isothiocyanate can be used as a dye dispersant, which helps improve the dyeing effect and uniformity. These properties make it play an important role in textile processing.

Pesticides and fertilizers: In the production of pesticides and fertilizers, sodium isothiocyanate is widely used as a wetting agent, dispersant and stabilizer. It helps to improve the adhesion and permeability of pesticides, increase the utilization rate, and control the effect of pesticides. At the same time, adding sodium isothiocyanate to fertilizer can improve fertilizer's solubility, nutrient utilization rate, and fertilization effect. This helps to improve the yield and quality of crops and reduce the waste of pesticides and fertilizers.

Inks and coatings: In manufacturing inks and coatings, sodium isothiocyanate is widely used as a wetting agent, leveling agent and dispersant. It helps improve the fluidity, wettability, and stability of inks and coatings, the surface smoothness and uniformity of coatings, and the appearance and quality of paints and coatings. This is important for the manufacture of high-quality ink and coating products.

Water treatment and sewage treatment: In sewage treatment and water treatment, sodium isothiocyanate is widely used as a dispersant, flocculant and stabilizer. It can reduce water's surface tension, improve sludge's flocculation and settling performance, and promote the separation and removal of suspended solids. At the same time, sodium isothiocyanate can also be used to prepare water-based coatings and coatings to improve the construction performance and corrosion resistance of coatings. This is important for the protection of water resources and the environment.

Production Method of SCI Sodium Cocoyl Isethionate: 

Direct synthesis

The direct synthesis method is the direct reaction of coconut oil and sulfur to produce sodium isothiocyanate under certain conditions. The specific steps are as follows:

Coconut oil is mixed with a moderate amount of sulfur, usually using an equal volume of solvent as a diluent, to regulate the concentration of the reactants.

Under stirring, the mixture is heated to the appropriate reaction temperature, generally between 80 and 150 ° C.

Keep the reaction temperature and stirring rate constant to make the coconut oil and sulfur completely react. During the reaction process, we should pay close attention to the temperature and pressure changes to avoid high and high temperatures.

After the reaction, the reactants were separated and purified by cooling and evaporating solvents to obtain sodium isothiocyanate products.

The advantages of direct synthesis are simple process, low equipment requirements and suitable for large-scale production. However, this method requires a large amount of sulfur and solvents, which may cause some pollution to the environment. At the same time, the temperature and pressure need to be controlled during the reaction process, which has high requirements for operation.

Esterification method

The esterification method involves reacting coconut oil with acid to produce coconut ester and then transesterifying it with sulfur to produce sodium isothiocyanate. The specific steps are as follows:

The coconut oil is mixed with an appropriate amount of sulfuric acid, hydrochloric acid, etc., and heated to the appropriate reaction temperature under agitation, generally between 80 and 150 ° C.

Keep the reaction temperature and stirring rate constant so the coconut oil and acid completely react to produce the corresponding chocolate ester.

The produced chocolate was mixed with an appropriate amount of sulfur, and a transesterification reaction was carried out at a suitable temperature and pressure. 

After the reaction, the reactants were separated and purified by cooling and evaporating the solvent, and sodium isothiocyanate products were obtained.

The advantage of esterification is that the waste acid can be recycled by transesterification, and the pollution of the waste acid to the environment can be reduced. At the same time, esterification can improve the product's purity and yield by controlling the transesterification conditions. However, this method needs to use more acid sulfur and other raw materials, which requires higher quality raw materials, and the operation process is more complicated.

Packing & Shipping SCI Sodium Cocoyl Isethionate

SCI Sodium Cocoyl Isethionate is available in a variety of different packaging options.
 SCI Sodium Cocoyl Isethionate packing: 1kg/bottle or 25kg/barrel.
 SCI Sodium Cocoyl Isethionate shipping: The shipment can be made by sea, air or express as soon after payment as possible.

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