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XSA-1516
Xylene Sulfonic Acid
Oil Chem Technologies has developed a new family of
anionic surfactants derived from the reaction of olefin
sulfonic acids and various aromatic compounds. The new
surfactants are different from conventional alkylaryl
by having the sulfonate group attached to the alkyl
chain instead attached to the aromatic ring as shown
below. The difference in the point of attachment of
the sulfonate group accounts for the increased solubility,
foaming, detergency, hardness tolerance, skin mildness
and other properties as described, for example, in US
Patent 6,043,391 and US Patent application 2004/0180805.
The new arylalkyl sulfonate has
the sulfonate group attached to the alkyl chain and
the conventional alkylaryl sulfonate has the sulfonate
group attached to the aromatic ring as shown in the
example below: 
Typical Properties
| Description |
Xylene Sulfonic Acid |
| Appearance |
amber liquid |
| pH ( 5% in IPA/Water) |
< 1 |
| Specific Gravity, 20 °C |
1.01 |
| Acidity, meq/g |
2.5 |
| % Free Oil |
< 1.0% |
Potential Applications for XSA-1416
- Foaming agent for drilling mud and cementing.
- Crosslinking agent for Visco-elastic surfactant gel
used in fracturing and acidizing.
- Anionic surfactant for wetting, foaming, detergency,
surface and interfacial tension lowering.
- Catalyst for polymerization and alkylation.
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