2-萘磺酸

Description

2-Naphthalene Sulfonic Acid · CAS 120-18-3 · C10H8O3S. UNII O9S4K2S25E. Vapor Pressure: 0.00000002 [mmHg]; LogP: 1.07.

Identification

CAS Registry Number	120-18-3
PubChem CID	8420
Molecular formula	C10H8O3S
IUPAC name	naphthalene-2-sulfonic acid
UNII (FDA)	O9S4K2S25E

Computed Descriptors

Molecular Weight	208.24
XLogP3	0.6
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	1
Exact Mass	208.01941529
Monoisotopic Mass	208.01941529
Topological Polar Surface Area	62.8
Heavy Atom Count	14
Formal Charge	0

Physical & Chemical Properties

Vapor Pressure	0.00000002 [mmHg]
LogP	1.07

Physical description & handling notes

• Dry Powder
• Hygroscopic solid; [Sigma-Aldrich MSDS]
• 143.8 Ų [M-H]- [CCS Type: DT; Buffer gas: N2; Ionization: ESI-; Dataset: TOXCAST; Source Identifier: DTXSID5044788]
• 143.5 Ų [M-H]- [CCS Type: DT; Buffer gas: N2; Ionization: ESI-; Dataset: TOXCAST; Source Identifier: DTXSID4041442]

Regulatory Status

GHS notification summary	0.4% (1 / 255)

GHS Hazard Classification

GHS notification summary	0.4% (1 / 255)
Reported hazard statements	H302 (41.6%), H314 (99.2%), H318 (80.4%)

Documented Uses

• Used to make beta-naphthol and intermediates; [Merck Index] Used as a laboratory reagent, monomer in thermoplastic manufacture, intermediate for large scale chemicals, in the processing of textiles, leather, fur, and paper-pulp-paper products, and as plastifier for concrete mixtures; [ExPub: ECHA REACH Registrations]
• Pulp and Paper Processing [Category: Industry]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Leather Tanning and Processing [Category: Industry]
• Fur Dressing and Dyeing [Category: Industry]
• Cement Producing [Category: Industry]

Synonyms

Naphthalene-2-sulfonic acid; 120-18-3; 2-NAPHTHALENESULFONIC ACID; beta-Naphthylsulfonic acid; beta-Naphthalenesulfonic acid; Naphthalene-2-sulphonic acid; DTXSID5044788; 2-Naphthalenesulfonic acid, monohydrate; O9S4K2S25E; DTXCID3024788; CHEBI:44229; RefChem:176039; 204-375-3; 2-Sulfonaphthalene; Kyselina 2-naftalensulfonova; 2-Naphthylsulfonic acid

Frequently Asked Questions

What are the CAS number and molecular formula of 2-Naphthalene Sulfonic Acid?

CAS 120-18-3; molecular formula C10H8O3S; molecular weight — g/mol.

What other names is 2-Naphthalene Sulfonic Acid known by?

Naphthalene-2-sulfonic acid, 120-18-3, 2-NAPHTHALENESULFONIC ACID, beta-Naphthylsulfonic acid, beta-Naphthalenesulfonic acid, Naphthalene-2-sulphonic acid.

Is 2-Naphthalene Sulfonic Acid classified as hazardous?

0.4% of GHS notifications report no hazard classification (1 of 255).

What are the key physical properties of 2-Naphthalene Sulfonic Acid?

Vapor Pressure: 0.00000002 [mmHg]; LogP: 1.07.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.