Manufacturer sells sodium dodecylbenzene sulfonate

Sodium dodecyl benzene sulfonate
English name dodecyl benzenesulfonic acid, sodium salt
Chinese alias: Sodium linear alkyl benzene sulfonate
CAS: 25155-30-0
EINECS No. 246-680-4;271-912-6
Molecular formula C18H29O3SNa
Molecular weight 348.4758
Level: Industrial grade
Content: 80%
Appearance: white particles
Packing: 10KG/composite woven bag
Physical and chemical properties: White or slightly yellow powder, easily soluble in water. To
Field: Detergent
Next products: washing powder, concentrated (non-phosphorus) washing powder
Application: Used in the preparation of household and industrial detergents. Such as ordinary (non-phosphorus) washing powder, concentrated (non-phosphorus) washing powder, solid detergent, paste detergent, paste detergent. To
Physical properties:
Hydrophilic lipophilic balance value (HLB value): 10.638
The decomposition temperature is 450℃, and the weight loss rate is 60%.
Properties: solid, white or light yellow powder
Solubility: easily soluble in water, easy to absorb moisture and agglomerate
Critical micelle concentration (CMC value): 1.2mmol·L-1
use:
1. High-efficiency emulsifying and dispersing agent for pressure-sensitive adhesive polymerization, the dosage is 1%-0.1%. To
2. The main raw materials of advanced cleaning agents, detergents, and advanced detergents, which can impart white color, efficient decontamination, oil and antistatic capabilities. To
3. The main additive of antistatic and cleaning effect in textile oil. To
4. Excellent antistatic agent for polyester substrates and film bases, especially high-efficiency antistatic agents for polyester-based films and photographic films
Industrial manufacturing method:
Sodium dodecylbenzene sulfonate is prepared by sulfonating dodecylbenzene with fuming sulfuric acid or sulfur trioxide, and then neutralizing it with alkali. The disadvantage of sulfonation with fuming sulfuric acid is that part of the waste acid is always present in the sulfonated material after the reaction. The sodium sulfate generated after neutralization is brought into the product and affects its purity. At present, the industry uses sulfur trioxide-air mixture sulfonation method. Sulfur trioxide can be steamed out by 60% fuming sulfuric acid, or sulfur and dry air can be burned in a furnace to obtain a mixed gas containing SO3. The mixed gas is passed into a sulfonation reactor containing alkylbenzene for sulfonation. The sulfonated materials enter the neutralization system for neutralization with sodium hydroxide solution, and finally enter the spray drying system for drying. The product obtained is a powder with good fluidity.