CAS No.:532-02-5
2-Naphthalenesulfonic acid
Synonyms: 2-Naphthalenesulfonic acid，
Molecular formula: (C10H8O3S.CH2O)x.xNa
CAS No: 532-02-5
UN NO: N/A
Β-sodium naphthalene sulfonate formaldehyde condensate is a naphthalene anionic surfactant made from refined naphthalene or industrial naphthalene through sulfonation, hydrolysis, condensation and other steps.It is widely used as a coating dispersant, dyeing and cement water reducer.
Application
In In the concrete construction industry, it is used as a water reducer for cement concrete, which significantly improves the initial strength and drying time of cement.
In In the textile industry, it can be used as a dye for textile dyeing.
In In the leather industry, it can be used as a softener.
In In the rubber industry, it can be used as a stabilizer.
Specification
| HS Code | CAS No. | Formula | Shelf Life | |
| 38244010 | 36290-04-7 | 2(C10H6SO3Na)•(n-1)CH2•(n-2)（C10H5SO3Na） | 12 months | |
| Items | Unit | SNF-1 | SNF-2 | SNF-3 |
| Appearance | Brown Powder | Brown Powder | Brown Powder | |
| Flow ability | nm | ≥230 | ≥230 | ≥210 |
| pH | 7-9 | 7-9 | 7-9 | |
| Solid content | % | ≥91 | ≥91 | ≥91 |
| Na2SO4 content | % | <5 | <18 | <25 |
| Fineness 0.315mm | % | <15 | <15 | <15 |
| Surface tension | ×10-3 N/M | 70±1 | 70±1 | 70±1 |
| Chloride | % | ≤0.3 | ≤0.5 | ≤2.5 |
| Insoluble matter 40%,4H | % | ≤0.5 | ≤2 | ≤2 |