Aromatic Sulfonic Acids CHART

Typical Properties	High Purity Benzenesulfonic Acid, 99%	Benzenesulfonic Acid, 90%	Toluenesulfonic Acid, 94%	Xylenesulfonic Acid, 90%	p-Toluenesulfonic Acid, Monohydrate	Phenolsulfonic Acid, 65%
Assay, % by weight	99	93.75	96.50	95	89	66
Sulfuric Acid, % by weight	<.05	2.6	.9	2.0	.2	2.2
Water, % by weight	1.0	2.0	1.5	1.1	10.8	30
Hydrocarbon, % by weight	-	<.1	.1	.1	-	-
Sulfones, % by weight		1.5	.9	1.3	-	-
Phenol, % by weight	-	-	-	-	-	.4
Total Acidity, % as Sulfuric Acid	-	31.5	28.2	26	25.5	21
Isomer Distribution % (Approx.)	-	-	para-80/ortho-20	-	para-99.5/ortho-.5	para-80/ortho-20
Setting Point °C	50-55	47-51	23	-	103.8	-2
Color	White/Off White	Light Brown	Straw to Light Brown	Dark Brown	White	Red-Brown
Gardner	-	5	5	12 - 15	<1	9
Appearance	Crushed Lump Crystals or Wax Solid	Liquid to partially Crystalline Mass	Liquid to partially Crystalline Mass	Viscous Liquid	Crystalline Solid	Liquid
Specific Gravity	1.30	1.32 @70°C	1.30 @40°C/15.6°C	1.32 @28°C	-	1.35 @28°C
Bulk Density, lb. per gallon	10.8	11.0	10.8	11.0	6	11.2
Iron, PPM	-	10	10	10	1


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