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What are the main uses of Sodium Allyl Sulphonate?
Sodium allyl sulfonate is mainly used in a wide range of ways. In the dyeing and weaving industry, it can be used as an auxiliary agent. It can help dye even dyeing, so that the fabric has a uniform color and a bright color. And in the process of printing and dyeing, it can increase the dye adsorption of the fabric, making the color fastness better, and the color is not easy to fade over time.
In the field of oil extraction, it is also very useful. It can be used as a component of oil displacement agent. Because of its surface activity, it can reduce the tension of the oil-water interface, release crude oil from rock pores, improve the efficiency of oil recovery, and improve the production of oil reservoirs.
In the manufacture of synthetic materials, it is also indispensable. It is a monomer or additive in the polymerization reaction and participates in the synthesis of special polymers. The resulting polymer has excellent properties, such as high water absorption, temperature resistance and salt resistance. This is effective in many aspects such as hygiene products and oilfield chemicals.
In the papermaking industry, it can also be seen. It can be used as a cooking aid to help fiber dissociation, reduce the energy consumption of cooking, and improve the quality of pulp, making paper products tougher and smoother.
In all these ends, sodium allyl sulfonate has developed its capabilities in various industries, making great contributions to the progress of the industry and the goodness of materials.
What are the chemical properties of Sodium Allyl Sulphonate
Sodium allyl sulfonate has unique chemical properties. This substance is hydrophilic, because it contains sulfonate groups, it is easily soluble in water, and can be well dispersed and dissolved in aqueous systems. This property makes it widely used in many industrial fields.
Its chemical stability is quite high. Under conventional conditions, the structure is stable, and it is not easy to react violently with common substances. It can be stored and used in different environments. However, in a strong acid or alkali environment, hydrolysis reactions may occur, resulting in structural changes and performance changes. The presence of
allyl gives it reactivity and can participate in reactions such as addition and polymerization. In the polymerization reaction, it can be used as a monomer or comonomer to form a copolymer with other monomers, changing the properties of the polymer, such as improving hydrophilicity, antistatic properties, etc.
In addition, it has a certain surface activity, which can reduce the surface tension of liquids. In the fields of emulsion polymerization, coatings, detergents, etc., it plays the role of emulsification, dispersion, and solubilization, helping to form a stable emulsion or dispersion system and improve product performance and quality.
What are the precautions for Sodium Allyl Sulphonate during storage and transportation?
When storing and transporting sodium allyl sulfonate, many key matters need to be paid attention to.
When storing, the first environment is dry. Because it has a certain water solubility, if the environment is humid, it is easy to absorb moisture and agglomerate, which will affect its quality and performance. It is necessary to choose a dry and well-ventilated place, away from water sources and moisture.
Temperature is also critical. It should be stored in a cool place to avoid high temperature hot topics. Excessive temperature may cause it to decompose, change the chemical structure and reduce the efficiency of the product. Generally speaking, the storage temperature should be 5-30 ° C.
Furthermore, fire sources and oxidants should be isolated. Sodium allyl sulfonate in case of open flame, hot topic or contact with oxidant, there is a risk of ignition and explosion. Fireworks must be strictly prohibited in the storage area, and stored separately from oxidant to prevent accidents.
During transportation, the packaging must be stable and tight. Make sure that the product does not leak or break during bumps and vibrations. Use high-quality packaging materials, such as well-sealed plastic drums or iron drums lined with plastic bags.
The transportation tool should also be clean and dry, and there should be no residual substances that react with sodium allyl sulfonate. And during transportation, it should be protected from sun exposure and rain, avoid transportation during high temperature periods, and take good shading and protective measures.
At the same time, transportation personnel should be familiar with its physical and chemical properties and emergency treatment methods. In the event of an accident such as leakage, they can respond quickly and correctly to prevent the harm from expanding. In this way, the safety and quality of sodium allyl sulfonate during storage and transportation can be guaranteed.
What is the production method of Sodium Allyl Sulphonate?
The method of preparing sodium allyl sulfite is made by addition reaction of allyl alcohol and sodium bisulfite as raw materials. The specific steps are as follows:
Prepare an appropriate amount of allyl alcohol and sodium bisulfite first. In the reactor, control the temperature to a suitable range, generally about 50-80 degrees Celsius, and slowly drop allyl alcohol into the solution containing sodium bisulfite. When adding dropwise, continue to stir to make full contact between the two, accelerating the reaction process. During this addition reaction, the double bond of allyl alcohol and the sulfite of sodium bisulfite are added to form sodium allyl sulfite.
After the reaction is completed, cool down to room temperature, and the resulting reaction solution may contain unreacted raw materials and by-products. In order to obtain pure sodium allyl sulfonate, the method of evaporation and concentration is often adopted to gradually lose water and increase the concentration of sodium allyl sulfonate. Subsequently, the crystallization is cooled, and the sodium allyl sulfonate precipitates from the solution into crystals. Then it is separated by suction filtration or centrifugation to obtain the crude product of sodium allyl sulfonate.
However, the crude product is not pure and needs to be further refined. Often by the method of recrystallization, a suitable solvent is selected, such as ethanol-water mixed solvent, the crude product is dissolved, heated to complete dissolution, and filtered while hot to remove insoluble impurities. The filtrate cools, the sodium allyl sulfonate crystallizes and precipitates again, is filtered and dried again, and finally a high-purity sodium allyl sulfonate product is obtained. When preparing
, the reaction temperature, the ratio of raw materials and the reaction time should be strictly controlled, which have a great impact on the purity and yield of the product. If the temperature is too high, or side reactions will increase; if the temperature is too low, the reaction rate will be slow. If the ratio of raw materials is improper, it will be difficult to achieve the ideal reaction effect. And the reaction time needs to be appropriate. If it is too short, the reaction will not be completed, and if it is too long or more by-products will be produced.
What are the effects of Sodium Allyl Sulphonate on the environment?
Sodium-allyl sulfonate is particularly important in terms of environmental impact. If this compound escapes in nature, it will be the first to suffer damage to the water system. The allyl sulfonate part, or with a certain water solubility, flows into rivers, lakes and seas, or causes water pollution. The habitat environment of aquatic organisms may change as a result, and the reproduction and survival of organisms are threatened.
If it penetrates into the soil, or causes changes in soil physical and chemical properties. Microbial communities in the soil may be disturbed by it, which will damage the balance of soil ecology, and also have adverse effects on plant growth and development. The health and diversity of vegetation may be reduced.
And in the atmospheric environment, although the volatilization of sodium-allyl sulfonate at room temperature is weak, if the production and use process is improper, the form of tiny particles or aerosols may enter the atmosphere. Although the relevant atmospheric effects are not yet detailed, the potential risks cannot be ignored.
Furthermore, the degradation process of this compound in the environment is also key. If the degradation is slow and remains in the environmental medium for a long time, the negative effects may gradually become apparent over the years, and the stability and function of the ecosystem will eventually be affected by it. Therefore, the use and management of sodium-allyl sulfonate should be done prudently to reduce its harm to the environment and protect the natural ecology.