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SLES (Sodium Lauryl Ether Sulfate) homogenization involves diluting high-viscosity 70% SLES paste down to 25–30% active concentration using high-shear mixing, such as a Sonic Sonolator or in-line shear pumps. This process, often part of an automatic SLES dilution system, eliminates "fish-eye" globules, ensuring a smooth, uniform, and stable liquid product while managing pH and temperature.
SLES Homogenization and Dilution Process
- High-Shear Mixing: Because SLES 70 is extremely viscous, simple stirring creates globules and stratification. High-speed shear mixers, such as Wahal High Shear Homogenizers, break down these globules by passing the mixture through a stator with rows of teeth, resulting in rapid homogenization.
- In-Line Dilution System: The system often includes a Tapflo in-line system that automatically mixes high-viscosity SLES and water, adjusting the ratio for the desired concentration.
- Dispersion & Temperature: The process often occurs at room temperature or slightly higher to improve flow. The Sonic Sonolator uses cavitation to disperse SLES 70 into water, reducing processing time and increasing efficiency.
- Optional Additives: During the dilution phase, additional agents, such as preservatives or pH regulators, can be added to the water line to ensure the final product meets specific pH requirements (commonly adjusted to around pH 7.3).
Benefits of In-Line Homogenization
- No "Fish Eyes": Prevents the formation of undiluted, viscous globules (fish eyes).
- Uniformity: Produces a consistent, low-viscosity product (e.g., 25–28%).
- Cost & Time Savings: Allows for the purchase of cheaper, concentrated (70%) SLES, which is diluted on-site.
- Automation: Systems feature PLC control and inverters, allowing for automated, accurate batching.
Typical applications for this homogenized SLES include manufacturing shampoo, liquid soap, and bubble bath.
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Web results
SLES pH adjustment tanks
WEIXIAN (Nanjing) Science Technology co., ltd
https://www.njweixian.com › sles-ph-adjustment-tanks
WEIXIAN (Nanjing) Science Technology co., ltd
https://www.njweixian.com › sles-ph-adjustment-tanks
The pH adjustment unit is to stabilize the pH value, homogenize the product and fine-tune the specifications when producing SLES and SLS.Read more
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Web results
Dispersion of SLES | SLES Dilution
Sonic Corporation
https://www.sonicmixing.com › Applications
Sonic Corporation
https://www.sonicmixing.com › Applications
Apr 25, 2024 — Sonic's Sonolator Homogenizer is a unique answer for diluting and dispersing SLES into water to eliminate fish eye appearance and save on processing time.Read more
Accelerate High Active Surfactant Dilution (SLES)
Silverson high shear mixers
https://www.silverson.com › application-reports › dilutio...
Silverson high shear mixers
https://www.silverson.com › application-reports › dilutio...
Dilution of 70% surfactants can be carried out in batches or continuously, provided two rules are observed: The concentrate is added to the water, NEVER the ...Read more
Sodium lauryl ether sulfate (SLES) degradation by nitrate ...
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC5486822
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC5486822
by AMS Paulo2017Cited by 56 — Unless otherwise stated, batches were incubated statically at 30 °C, and the pH was 7.3 ± 0.1. Following bacterial growth and absence of ...Read more
SLES Surfactant: Industrial Applications and Formulation ...
Elchemy
https://elchemy.com › blogs › intermediates-solvents › sl...
Elchemy
https://elchemy.com › blogs › intermediates-solvents › sl...
Jan 3, 2026 — SLES is produced at 70% concentration and typically diluted to 27-28% for manufacturing applications; Concentrations above 27% form highly ...Read more
SLES Emulsifier
GREEN AGROCHEM
https://www.greenagrochem.com › sles-emulsifier
GREEN AGROCHEM
https://www.greenagrochem.com › sles-emulsifier
May 2, 2025 — SLES Emulsifier ... Dishwashing Liquids: SLES emulsifies grease and food oils, aiding in their removal while maintaining a homogeneous product.Read more
Studying the Structure of Sodium Lauryl Ether Sulfate ...
ACS Publications
https://pubs.acs.org › doi
ACS Publications
https://pubs.acs.org › doi
Sep 30, 2022 — We present a study of the phase diagram of pure, monodisperse SLES solutions as a function of composition and ethoxylation n. A polydisperse ...Read more
Surface tensions of SLES (–●–) and Ch/SLES mixtures
ResearchGate
https://www.researchgate.net › figure › Surface-tensions...
ResearchGate
https://www.researchgate.net › figure › Surface-tensions...
The aqueous phase was homogenized for 5 min by Ultra Turrax T25 at 5000 rpm and 30 • C, then the oil phase was gradually added to the aqueous phase during the ...Read more
SLES mixing and dilution unit - Durable Flow Solutions by ...
Tapflo
https://tapflo.com › product › sles-mixing-and-dilution-u...
Tapflo
https://tapflo.com › product › sles-mixing-and-dilution-u...
The diluted SLES is homogeneous and stable over time. Savings and efficiency. The in-line dilution process offers significant energy and time savings ...Read more