| Identification | More | [Name]
Sodium 1-naphthalenesulfonate | [CAS]
130-14-3 | [Synonyms]
1-NAPHTHALENESULFONIC ACID
1-NAPHTHALENESULFONIC ACID SODIUM SALT
1-NAPHTHALENE SULPHONIC ACID SODIUM SALT
NAPHTHALENE-1-SULFONIC ACID SODIUM SALT
Naphthalene-1-sulphonic acid
NAPHTHALENE-1-SULPHONIC ACID SODIUM SALT
NAPHTHALENE-ALPHA-SULFONIC ACID SODIUM SALT
SODIUM 1-NAPHTHALENESULFONATE
Sodium naphthalene-1-sulphonate
1-NAPHTHALENESULFONIC ACID, SODIUM SALT, TECH., 80%
NAPHTHALENE-1-SULFONIC ACID (ALPHA) SODI UM SALT
1-NAPHTHALENESULFONIC ACID SODIUM SALT(ALPHA-) 95+%
Sodiumnaphthalene-1-sulfonate
Naphthalene-1-sulphonic acid sodium salt 99%
1-NAPTHALENE SULFONIC ACID SODIUM SALT | [EINECS(EC#)]
204-976-0 | [Molecular Formula]
C10H7NaO3S | [MDL Number]
MFCD00064964 | [Molecular Weight]
230.22 | [MOL File]
130-14-3.mol |
| Chemical Properties | Back Directory | [Appearance]
Deliquescent crystals.Soluble
in water, alcohol, and ether. Combustible. | [Melting point ]
299-301°C | [density ]
0.516[at 20℃] | [storage temp. ]
Inert atmosphere,Room Temperature | [form ]
powder to crystal | [color ]
White to Almost white | [Water Solubility ]
Soluble in water. | [Sensitive ]
Hygroscopic | [BRN ]
3639038 | [InChI]
InChI=1S/C10H8O3S.Na/c11-14(12,13)10-7-3-5-8-4-1-2-6-9(8)10;/h1-7H,(H,11,12,13);/q;+1/p-1 | [InChIKey]
HIEHAIZHJZLEPQ-UHFFFAOYSA-M | [SMILES]
C12C=CC=CC1=CC=CC=2S([O-])(=O)=O.[Na+] | [LogP]
-1.776 at 25℃ | [Uses]
Starting point in the manufacture of
α-naphthol, α-naphthalene sulfonic acid, α-
naphthylaminesulfonic acid; solvent (Na salt) for
phenol in the manufacture of disinfectant soaps. | [CAS DataBase Reference]
130-14-3(CAS DataBase Reference) | [EPA Substance Registry System]
130-14-3(EPA Substance) |
| Questions And Answer | Back Directory | [Preparation]
Naphthalene is completely dissolved in a solvent. An appropriate amount of 1-naphthalenesulfonic acid seed crystals are added. The mixture is cooled to 0±5℃, and chlorosulfonic acid is added dropwise under negative pressure while stirring. The addition is completed over 1-2 hours, and then maintained at -2 to 8℃ for another 1.5-3 hours. The molar ratio of naphthalene:chlorosulfonic acid:solvent is 1:1.01-1.10:3.0-3.5. The mixture is cooled to 0±2℃ and filtered. The filter cake is 1-naphthalenesulfonic acid. The filtrate is washed with water, and the phases are separated to obtain the solvent and water-washed acid. The water-washed acid can be used to prepare naphthalene-based high-efficiency water-reducing agents. The 1-naphthalenesulfonic acid and the solvent after water washing are neutralized with 5%-15% NaOH and maintained at 90±5℃ for 10-30 minutes. The neutralized liquid phases are separated to obtain an aqueous solution of sodium 1-naphthalenesulfonate. The solution is cooled to ≤35℃ and crystallized by filtration. The filter cake is sodium 1-naphthalenesulfonate salt. |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS07 | [Signal word ]
Warning | [Hazard statements ]
H315-H319-H335 | [Precautionary statements ]
P302+P352-P305+P351+P338 | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [Hazard Note ]
Irritant | [TSCA ]
Yes | [REACH Registrations]
Active | [HS Code ]
2904100090 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| Hazard Information | Back Directory | [Description]
Sodium 1-naphthalenesulfonate (CAS Registry No. 130-14-3) is a valuable regent widely used in the functionalized reduced graphene oxide stabilization of silver nanoparticles. Meanwhile, this is an intermediate in manufacturing 8-Anilino-1-naphthalenesulfonate and 8-p-toluidino-1- naphthalenesulfonate, and many other applications. Sodium 1- and 2-naphthalenesulfonate are mainly synthesized by sulphonation naphthalene with concentrated sulfuric acid then condensation by NaCl. The products formed by this method included sodium 1- and 2-naphthalenesulfonates in various proportions. They were obtained through sulphonation and condensation, respectively. Purifying sodium 1- and 2-naphthalenesulfonates via crystallization in a solvent is very important[1-2].
| [Chemical Properties]
Deliquescent crystals.Soluble
in water, alcohol, and ether. Combustible. | [General Description]
Sodium 1-naphthalenesulfonate (SNS) is a highly versatile chemical compound that plays a critical role in industries ranging from construction and textiles to agriculture, detergents, ceramics, and beyond. Its unique properties as a dispersant, surfactant, and water-reducing agent make it a go-to material for improving the performance, efficiency, and quality of countless products and processes. | [Flammability and Explosibility]
Notclassified | [Purification Methods]
Recrystallise it from water or aqueous acetone [Okadata et al. J Am Chem Soc 108 2863 1986]. [Beilstein 11 IV 521.] | [References]
[1] Rongrong Li . “Solid–liquid equilibrium of ternary system sodium 1-naphthalenesulfonate + sodium 2-naphthalenesulfonate + water at (283.15, 303.15 and 323.15) K.” Fluid Phase Equilibria 383 (2014): Pages 27-31.
[2] Qiaojun Lu . “Solubility determination and thermodynamic modeling of sodium 1-naphthalenesulfonate and sodium 2-naphthalenesulfonate in six organic solvents from T = (278.15 to 323.15) K and mixing properties of solutions.” Journal of Molecular Liquids 238 (2017): Pages 27-35.
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