ProFlex 8
A liquid sulfonamide plasticizer and adhesion promoter for the polar resins a general-purpose plasticizer softens poorly. Nylon, cellulosics, shellac and inks.
A liquid sulfonamide plasticizer and adhesion promoter for the polar resins a general-purpose plasticizer softens poorly. Nylon, cellulosics, shellac and inks.
ProFlex 8 is a mixture of the ortho and para isomers of N-ethyl toluenesulfonamide, supplied as a clear, slightly yellow liquid. The technical data sheet describes it as one of the most widely compatible plasticizers, and it promotes adhesion and has excellent thermal stability.
The polarity is what does the work. ProFlex 8 plasticizes the resins a general-purpose plasticizer softens poorly: nylon and other polyamides, shellac, cellulose acetate, zein and other protein materials. It also acts as a dye solvent and a pigment dispersant, and its low solubility in petroleum hydrocarbons suits coatings and adhesives that have to resist oils and greases.
The isomer ratio is specified at 70/30 ortho to para with a tolerance of 4 percent, and the meta isomer is held to 5 percent maximum. Active matter is 99 percent minimum. The molecular formula is C9H13NO2S for each isomer, molecular weight 199.27 g/mol.
Physical properties from the data sheet: boiling point 196 degrees C at 10 mm Hg, flash point 176 degrees C by Cleveland open cup, density 1200 kg/m3, specific gravity 1.19, pour point minus 10 degrees C typical. The material is almost insoluble in water and its pH is 7 to 9.
The safety data sheet names the identified uses as plasticizer for polymer and ink formulations, adhesion promoter, and anti-fouling agent. ProFlex 8 is listed in the EPA Trade Name Database as an inert ingredient and we hold the clearance letter.
The restricted substances declaration covers PFAS, bisphenols, phthalates, GMO material, animal-derived material and conflict minerals, none of which are intentionally added. It rests on knowledge of the raw materials and the production process rather than on routine analytical testing, and the declaration states that itself.
The CAS Registry Number is 8047-99-2. It is also written as N-ethyl-o/p-toluenesulfonamide, NETSA, N-ethyl toluenesulfonamide, ethyl toluene sulfonamide, N-ethyl-o-toluenesulfonamide, and N-ethyl-p-toluenesulfonamide.
| Property | Specification |
|---|---|
| Appearance | Clear, slightly yellow liquid with no suspended matter |
| Active matter | 99 percent minimum |
| Ortho to para ratio | 70/30, tolerance 4 percent |
| Meta isomer | 5 percent maximum |
| Viscosity at 25 degrees C | 250 to 400 mPa.s |
| Water content | 0.7 percent maximum |
| Acid value | 0.7 mg KOH/g maximum |
| Inorganic chloride | 100 ppm maximum |
| Refractive index | 1.535 to 1.545 |
| Colour | 50 to 130 Pt-Co |
| Form | Liquid |
These are specification limits from the technical data sheet, not typical values. Every batch is released against them and the certificate of analysis reports the measured result. We will send the current TDS and the batch documentation your qualification needs.
Tell us the binder system, the property you are targeting, and the volume you expect. We will confirm the grade, send the documentation, and ship a sample from North American stock.
Highly polar, so it plasticizes polyamide where a hydrocarbon-compatible plasticizer will not.
A cellulosic plasticizer with low volatility.
The line data sheet names shellac, zein and other protein materials.
Plasticizer and resin modifier in ink systems.
Named on the data sheet as a primary function alongside plasticizing.
An identified use on the safety data sheet, and an EPA-listed inert ingredient.
The polarity carries dyes and helps wet out pigment.
It is specified where the formulation needs broad resin compatibility, adhesion to difficult substrates, thermal stability, and resistance to oils and greases.
ProFlex 8 is a liquid and goes in with the other liquid components. Viscosity is 250 to 400 mPa.s at 25 degrees C, so it pumps and meters without heating in a normal plant. It is almost insoluble in water, so it will not thin out in an aqueous phase.
Keep drums closed. Water content is specified at 0.7 percent maximum and the material will take up moisture from wet air. Avoid prolonged storage at elevated temperature, and keep it away from strong acids, which are the one incompatibility the safety data sheet names.
Package sizes: 240 kg net steel drums.
Storage: Two years from the date of manufacture in sealed original packaging at 20 to 25 degrees C, away from light. Store in a cool, dry, well ventilated place with containers tightly closed.
Classified under GHS as a skin irritant category 2, an eye irritant category 2A, and for single-exposure respiratory irritation, signal word Warning. Both isomers are on the TSCA Inventory and designated active, and the substance is listed on the Canadian DSL, EINECS, and the Japanese, Korean, Chinese, Taiwanese, Thai, Vietnamese, Philippine, Australian and New Zealand inventories. Not listed under SARA 313, the Clean Air Act hazardous air pollutants list, or California Proposition 65. Not regulated for transport by DOT, IMDG or IATA. Our FDA compliance statement certifies clearance under 21 CFR 175.105, 175.300, 175.320, 175.390, 176.180, 177.1200 and 177.1210. Read the safety data sheet before handling.
The mixture is CAS 8047-99-2. Because ProFlex 8 is an isomer mixture, the safety data sheet also carries a number for each component: 1077-56-1 for the ortho isomer and 80-39-7 for the para isomer. A qualification form that asks for one number usually wants 8047-99-2, and a form that asks for the composition wants both component numbers with their percentages. We send the composition statement with either.
Yes, and that is one of the main reasons it is specified. Sulfonamides are polar, so they are compatible with polyamide in a way that hydrocarbon-compatible plasticizers are not. The same polarity covers cellulose acetate, nitrocellulose, shellac, zein and other protein materials. Tell us the polymer and the flexibility you are targeting and we will suggest a starting level.
No. It is a sulfonamide, a different chemistry entirely, and our restricted substances declaration confirms that no phthalates are intentionally added. If you are removing a phthalate from a polar resin system, ProFlex 8 and Citriflex 84 are the two grades in this line to look at, and they suit different resins.
No. It is not regulated for transport by DOT, IMDG or IATA, and no transport labels are required. The freight classification is NMFC 101720-03. It is still classified as hazardous under the OSHA Hazard Communication Standard for skin, eye and respiratory irritation, so handle it with the protection the safety data sheet specifies.
ProFlex 8 is a non-reactive liquid plasticizer and ProFlex 9S is the reactive solid. ProFlex 8 is the N-ethyl substituted amide, so the nitrogen is capped and the molecule sits in the polymer without joining it. ProFlex 9S is the parent amide with a free N-H, which condenses into amino resins and consumes isocyanate in polyurethane systems. Choose ProFlex 8 when you want plasticizing without changing the cure.
Yes. We send the Technical Data Sheet (TDS), Safety Data Sheet (SDS), Certificate of Analysis (COA), Composition statement, FDA food contact compliance statement, TSCA statement, Restricted substances and PFAS declaration, and EPA inert ingredient clearance letter on request, in the current revision. Use Request TDS or SDS above and tell us what your qualification review needs.
The N-butyl benzenesulfonamide liquid, for polyacetal, polycarbonate and polysulfone as well as polyamide.
The reactive parent amide, a solid, for amino resins and cured systems.
Acetyl tributyl citrate, the non-phthalate route for cellulosics and PVC.
What sulfonamide polarity buys you, and which resins it is worth it for.
The ProFlex grades side by side, and where each one fits.
Why nylon resists most plasticizers, and what works.
Sulfonamides, citrates and the tosyl chloride specialty in one place.