Our Products

span 20 surfactant

Tensioactif — Wikipdia

Un tensioactif ou agent de surface (surfactant en anglais) est un compos qui modifie la tension superficielle entre deux surfaces. Les composs tensioactifs sont des molcules amphiphiles, c'est--dire qu'elles prsentent deux parties de polarit diffrente, l'une lipophile (qui retient les matires grasses) est apolaire, l'autre hydrophile (miscible dans l'eau) est polaire.

Get Quotation

Surfactant Manufacturing

A surfactant is an organic compound that is amphiphilic, containing both water-soluble and water-insoluble components. Surfactants are key ingredients in consumer and industrial cleaning compounds — such as detergents, cleansing or wetting agents, emulsifiers, foaming or defoaming agents, viscosity builders, degreasers or dispersants.. Stepan Company offers a broad range of surfactant

Get Quotation

Polysorbate 20

Polysorbate 20 is a polysorbate-type nonionic surfactant formed by the ethoxylation of sorbitan before the addition of lauric acid. Its stability and relative nontoxicity allows it to be used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications. As the name implies the ethoxylation process leaves the molecule with 20 repeat units of polyethylene glycol; in practice these

Get Quotation

Span 20 MATERIAL SAFETY DATA SHEET CAS No 1338

Product name : Span 20 CAS-No. : 1338-39-2 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratorychemicals, Industrial for professional use only. 1.3 Details of the supplier of the safety data sheet Company : Central Drug House (P) Ltd 7/28 Vardaan House New Delhi-10002 INDIA

Get Quotation

Surfactants: Pharmaceutical and Medicinal Aspects

Polyoxyethylene (20) sorbitan monostearate – Tween 60 Polyoxyethylene (20) sorbitan mono-oleate – Tween 80 Polyoxyethylene (20) sorbitan tristearate – Tween 65 Polyoxyethylene (20) sorbitan tri-oleate – Tween 85 The most commonly used non-ionic surfactants are ethers of fatty alcohols (Zhang et al., 2009). The Sorbitan esters are insoluble in water, but soluble

Get Quotation

SP Tween 20 MBAL

Tween 20 is a sorbitan fatty acid ester ethoxylate and is a well-known highly effective adjuvant. Croda's Tween 20 has been the workhorse nonionic surfactant adjuvant for several decades and consistently demonstrates both high levels of activity across broad varieties of pesticidal active ingredients as well as providing superior plant safety.

Get Quotation

Critical micelle concentration (CMC) and surfactant

Critical micelle concentration (CMC) and surfactant concentration. The CMC (critical micelle concentration) is the concentration of a surfactant in a bulk phase, above which aggregates of tenside molecules, so-called micelles, start to form.The CMC is an important characteristic for surfactants.

Get Quotation

Span 20

Manipulation of the Span/Tween ratio produces emulsifying systems of various HLB values, allowing the emulsification of a wide range of oils and waxes. Span 20 finds application in topical preparations. It is soluble in many fatty compositions and solvents and dispersible in water, dilute acids and alkalis.

Get Quotation

Polysorbate 20

OBTAINED BY ESTERIFICATION OF SORBITOL WITH ONE OR THREE MOLECULES OF A FATTY ACID (STEARIC, LAURIC, OLEIC, PALMITIC) UNDER CONDITIONS WHICH CAUSE SPLITTING OUT OF WATER FROM SORBITOL, LEAVING SORBITAN. ABOUT 20 MOLES OF ETHYLENE OXIDE PER MOLE OF SORBITOL ARE USED IN CONDENSATION

Get Quotation

TERGITOL! 15

TERGITOL! 15-S-20 (80%) Surfactant Nonionic Secondary Alcohol Ethoxylate Benefits •Excellent emulsion stabilizer with low reactor residue •Provides freeze/thaw ionic stability •Good handling properties •High HLB emulsifier dispersant •Electrolyte solubility •High temperature wetting Applications •Emulsion

Get Quotation

Span 80 nonionic surfactant

General description. Span 80 is a nonionic surfactant. Application. Span 80 has been used in a study to assess transfersomes as a transdermal delivery system for sertraline. It has also been used in a study to investigate the dominant factors affecting the stability of nanoemulsions through the use of artificial neural networks (ANNs).

Get Quotation

PREPARATION AND CHARACTERIZATION OF NIOSOMES

This niosome is prepared by modified ether injection technique. In this span 60 span 20 is used as non ionic surfactants. Different 6 formulation are prepared, In this NFS-1 to 3 formulation are prepared using the span 60 NFS-4 to 6 are prepared using span 20 along with different proportion of cholesterols. Because of the presence of nonionic surfactant with the lipid

Get Quotation

SAFETY DATA SHEET 80/20 PREMIUM SURFACTANT

Eye contact: Hold eye open and rinse slowly and gently with water for 15 -20 minutes. Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye. Call a poison control center or doctor for treatment advice. Skin contact: Take off contaminated clothing. Rinse skin immediately with plenty of water for 15-20 minutes.

Get Quotation

The Effect of the Hydrate Antiagglomerant on Hydrate

13 A similar hairy hydrate morphology caused by the surfactant was also observed by Karanjkar et al., Nakajima et al., and Aman et al. Aman et al. observed a hairy morphology of tetrahydrofuran hydrate in the presence of Span 20 and hypothesized that the changes in the hydrate morphology may be attributed to the presence of surfactants in the bulk

Get Quotation

ABSTRACT

Surfactants employed in this work were Span 20, Span 60, and Span 80 (sorbitan monolaurate, monoestearate and monooleate, respectively), as well as Tween 20, Tween 60 and Tween 80 (the corresponding etoxilated Span products, Poe = 20). Mixtures of the two nonionic surfactants were employed to get a wide range of specific HLB values.

Get Quotation

Determination of Hydrophilic

A= acid number of fatty acid, 276 HLB= = 16.7 Many fatty acid esters do not give good saponification data; for example, tall oil and rosin esters, beeswax esters, lanolin esters. P= weight percentage of polyhydric alcohol content, 6.7 HLB= = 14 These formulas

Get Quotation

1. Surfactant chemistry and general phase behaviour

surfactants have attracted much interest, and include the catanionics, bolaforms, gemini (or dimeric) surfactants, polymeric and polymerisable surfactants [5, 6]. Characteristics and typical examples are shown in Table 1.3. Another important driving force for this research is the need for enhanced surfactant

Get Quotation

Screening Nonionic Surfactants for Enhanced Biodegradation

Brij 30, Span 20, and POESH were particularly effective at enhancing biodegradation of four- and five-ring PAHs, including five of the seven carcinogenic PAHs, with removals up to 80%. Surfactant amendment also significantly enhanced the removal of alkyl-PAHs.

Get Quotation

Emulsification of Vegetable Oils using a Blend of Nonionic

Sunflower oil and sesame oil contain fairly high percentage of tocopherols and tocotrienols. These oils were emulsified by using a combination of non‐ionic surface‐active agents viz. Span‐80 and Tween‐20 surfactants to get cosmetic emulsions. Stability of the emulsions was enhanced by using natural polymer additives. The effect of various parameters such as pH, oil content, emulsifier

Get Quotation

Surface Properties of Mixed Adsorbed Surfactants Film of

The surfactants tween 20 (98%, Fluka, Switzerland), and tween 80 (98.5%, Fluka, Switzerland), were used as received. Deionizedwater (sp. conductivity = 210-6 S cm-1) was used throughoutthis work. Stock solutions (1000 mg/L) of each surfactant were prepared by dissolving 1 g

Get Quotation

SP Tween 20 MBAL

Tween 20 is a sorbitan fatty acid ester ethoxylate and is a well-known highly effective adjuvant. Croda's Tween 20 has been the workhorse nonionic surfactant adjuvant for several decades and consistently demonstrates both high levels of activity across broad varieties of pesticidal active ingredients as well as providing superior plant safety.

Get Quotation

Surfactant Flashcards

Cut off concentration when the concentration of a surfactant is greater than the concentration that can be accommodated by the surface or interface, micelles are formed. H20 insoluble (hydrophobic) - e.g. Spans (fatty acid esters of Sorbitan). Sorbitan monolaureate (Span 20), Sorbitan trioleate (Span 80).

Get Quotation

Span 80

Span 80. Low HLB surfactant. Can be used to form oil-in-water emulsions and, in combination with low HLB surfactants. Can form water-in-oil emulsions. EPA approved oil spill dispersant designed to accelerate the process of natural dispersion. Adaptable to various application techniques and be efficacious with a wide range of chemistries.

Get Quotation

FarmWorks 80/20 Surfactant, 1 gal., 75219 at Tractor

The surface-active agents in FarmWorks 80/20 Surfactant are suitable for use wherever a pesticide label recommends a surfactant, spreader or wetter. The general-purpose surfactant also contains a defoamer to help suppress the formation of foam in your spray solutions

Get Quotation

Alkyl Polyglycoside

lauric acid (Span 20), palmitic acid (Span 40), stearic acid (Span 60) or oleic acid (Span 80). Depending on the attached fatty acids, hydrophilic-lipophilic balances range between 1 and 8. These relatively lipophilic molecules can be partly deriva-tized with ethylene oxides to yield sorbitan ester ethoxylates

Get Quotation

Span 80

Span 80 is a liquid W/O emulsifier and O/W emulsion stabiliser particularly recommended for use with unsaturated lipid components such as oleyl alcohol or vegetable oils. Extensively used as a wetting agent and dispersant for materials such as zinc oxide, calamine and penicillin in

Get Quotation

The HLB SYSTEM

required HLB, select any matched pair of SPAN and TWEEN emulsifiers, i.e. SPAN 20 with TWEEN 20 or SPAN 60 with TWEEN 60. This will give you two emulsifiers of the same chemical class, one lipophilic (oil-loving), the other hydrophilic (water-loving). For example, the 20 SPAN-TWEEN

Get Quotation

Effects of surfactant type and cholesterol

This study aimed at investigating the roles of both Span surfactant type (having a gel/liquid transition temperature range from 10 to 55 C), and cholesterol level on in vitro characteristics and in vivo performance of timolol maleate niosomes. Span 20, Span 40 and Span 60 niosomes were prepared using the thin film hydration method.

Get Quotation

1 Gal. Surfactant

The surface-active agents in 80/20 Surfactant are suitable for use wherever a pesticide label recommends a surfactant, spreader or wetter. The general purpose surfactant also contains a defoamer to help suppress the formation of foam in your spray solutions. General purpose surfactant

Get Quotation

Tween 80 and Tween 20 Biocompatible Surfactants for

Material Safety Data Sheet - Tween 20 Material Safety Data Sheet - Tween 80 Tween is a non-ionic viscous liquid often used as a surfactant for dispersing hydrophobic particles in aqueous solutions and as a non-ionic detergent for selective protein extraction and isolation of nuclei from mammalian cell lines.

Get Quotation