Aromatic Sulfonic Acids

For your convenience, DynaChem’s aromatic sulfonic acids are available in certain water or alcohol solutions. Custom formulations are also available in solution form, and many of the properties listed below can be adjusted to fit your individual requirements. Below is a partial listing of the products we have in our portfolio. Please contact DynaChem for more information.

*Partial Product Listing

Aromatic Sulfonic Acids

Product	code #	assay %	sulfuric %	setting point °C	appearance	specific gravity
title High Purity Benzenesulfonic Acid	code # 6730HP	assay % 98 - 100	sulfuric % <0.05	setting point °C 55	appearance Off White to Light Brown Solid	specific gravity 1.30 @ 70°C
title Benzenesulfonic Acid	code # 6730	assay % 92 - 94	sulfuric % 3.0	setting point °C 55	appearance Brown Wax Solid	specific gravity 1.32 @ 70°C
title Benzenesulfonic Acid (solution)	code # 6710W75	assay % 68 - 71	sulfuric % <2.5	setting point °C 0	appearance Brown Liquid	specific gravity 1.30 @ 25°C
title p-Toluenesulfonic Acid	code # 6510	assay % >95	sulfuric % <1.0	setting point °C 35	appearance Straw to Light Brown Wax Solid	specific gravity 1.30 @ 40°C
title p-Toluenesulfonic Acid (solution)	code # 6510W70	assay % 64 - 67	sulfuric % <0.9	setting point °C 0	appearance Straw to Light Brown Liquid	specific gravity 1.25 @ 25°C
title High Purity p-Toluenesulfonic Acid Monohydrate	code # p-TSA Mono	assay % 89% TSA (99.5% para Isomer)	sulfuric % <0.3	setting point °C 104	appearance White Crystalline Solid	specific gravity N/A
title High Purity p-Toluenesulfonic Acid (Solution)	code # 6510W70HP	assay % 64 - 68 (para Isomer)	sulfuric % <0.2	setting point °C 0	appearance Clear Liquid	specific gravity 1.25 @ 25°C
title Xylenesulfonic Acid	code # 6110	assay % 90 - 95	sulfuric % <3.0	setting point °C 0	appearance Dark Viscous Liquid	specific gravity 1.32 @ 25°C
title Phenolsulfonic Acid	code # 6800W65	assay % 65 - 67	sulfuric % <2.8	setting point °C 0	appearance Red Brown Liquid	specific gravity 1.35 @ 25°C
title p-Toluenesulfonic Acid & Xylenesulfonic Acid (Mixture)	code # TX6535	assay % 60% TSA & 40% XSA	sulfuric % <3.0	setting point °C 0	appearance Dark Viscous Liquid	specific gravity 1.30 @ 25°C

Specialty Formulated Sulfonic Acid Catalysts

The DYNACAT® lines of catalyst were specifically formulated for accelerating the cure of Amino Crosslinking agents. Each catalyst is designed to fulfill a specific application requirement, depending on the formula composition and curing conditions. While the acid catalysts provide the fastest cure and lower curing temperature, blocked catalysts are typically chosen for systems requiring greater package stability

Product	code #	assay %	appearance	specific gravity
title p-TSA in Isopropanol	code # DYNACAT® - I40	assay % 40	appearance Clear Liquid	specific gravity 0.999 @ 25°C
title p-TSA in Water	code # DYNACAT® - W40	assay % 40	appearance Clear Liquid	specific gravity 1.12 @ 25°C
title DDBSA in Isopropanol	code # DYNACAT® - DB70	assay % 70	appearance Dark Liquid	specific gravity 0.970 @ 25°C

Amine Blocked Acid Catalysts

Product	code #	assay %	appearance	specific gravity
title p-TSA in Isopropanol	code # DYNACAT® - 5500	assay % 25	appearance Clear Liquid	specific gravity 0.970 @ 25°C
title p-TSA in Isopropanol & Methanol	code # DYNACAT® - 5501	assay % 25	appearance Clear Liquid	specific gravity 0.960 @ 25°C
title DDBSA in Isopropanol	code # DYNACAT® - 5525	assay % 25	appearance Light Straw Liquid	specific gravity 0.900 @ 25°C