Naphthalene-2-sulfonic acid(CAS 120-18-3)
UN No.:
UN 2583 8 /PG II
| Purity | Grade | Package | Stock | Price | Quantity |
| 99% | RG | 1000G | In Stock | 81 USD
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Applications of 120-18-3
| Industry | Application | Process |
|---|---|---|
| Dyes and Pigments Industry | Dye intermediate | Serves as a raw material for synthesizing azo dyes (e.g., acid dyes, direct dyes) and organic pigments (e.g., Lithol Rubine R) via diazotization, coupling, and introduction of naphthalene sulfonic acid groups. |
| Dyes and Pigments Industry | Dye dispersant and leveling agent | Condensed with formaldehyde to produce naphthalene sulfonate formaldehyde condensates (dispersant NNO), used for dispersing vat dyes and disperse dyes, and for leveling acid dyes. |
| Pharmaceutical Industry | Pharmaceutical synthesis intermediate | Employed in the synthesis of anti-rheumatic and anti-inflammatory analgesics (e.g., naproxen) and other naphthalene-ring-containing drug molecules via sulfonyl chloride or sulfonamide formation reactions. |
| Construction Materials Industry | High-range water reducer | Condensed with formaldehyde to produce naphthalene-based high-range water reducers (naphthalene sulfonate formaldehyde condensates), which adsorb onto cement particle surfaces during concrete mixing and disperse particles via electrostatic repulsion. |
| Photographic Materials Industry | Color developer intermediate | Used in synthesizing color developers and coupler components, contributing to the formation of organic compounds with specific optical properties. |
| Organic Synthesis Industry | Rubber additive | Applied in synthesizing rubber scorch inhibitors (e.g., scorch inhibitor NA) and other rubber processing additives. |
Physical and chemical properties of 120-18-3
Acidity coefficient |
0.27±0.10(Predicted) |
|---|---|
Boiling Point |
317.43°C (rough estimate) |
Density |
1.4±0.1 g/cm3 |
Exact Mass |
208.019409 |
Index of Refraction |
1.670 |
LogP |
1.70 |
Melting Point |
124 °C |
Merck |
6377 |
Molecular Formula |
C10H8O3S |
Molecular Weight |
208.234 |
PSA |
62.75000 |
Sensitivity |
Hygroscopic |
Solubility |
water: freely soluble(lit.) |
Storage condition |
Inert atmosphere,Room Temperature |
Vapour Pressure |
0.00000002 [mmHg] |
Water Solubility |
Soluble in water. |
Spectrums of 120-18-3
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Cas:532-02-5
Cas:64-17-5
Cas:93-11-8
Q&A for CAS 120-18-3
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Download SDS of 120-18-3
Pictograms |
 |
|---|---|
Signal Word |
Danger |
Hazard Statements |
H302 Harmful if swallowed H314 Causes severe skin burns and eye damage H318 Causes serious eye damage |
Safety Data Sheet |
Download COA of 120-18-3
Operate under the ISO 9001 system
