5965-83-3

Basic information

• Product Name: 5-Sulfosalicylic acid dihydrate
• Synonyms: Benzoicacid,2-hydroxy-5-sulfo-,dihydrate;Salicylic acid, 5-sulfo-, dihydrate;5-Sulfosalicylic acid dihydrate, ACS, 99.0% min.;5-SULFOSALICYLIC ACID DIHYDRATE*ELEC;5-Sulfosalicylic acid dihydrate, p.a.;SULFOSALICYLIC-5 ACID;SULFOSALICYLIC ACID, DIHYDRATE;SULPHOSALICYLIC ACID
• CAS NO: 5965-83-3
• Molecular Formula: C7H10O8S
• Molecular Weight: 254.21
• EINECS: 202-555-6
• Product Categories: Rubber Chemicals;Organic acids
• Mol File: 5965-83-3.mol
• Article Data: 0

Chemical Properties

• Melting Point: 105-110 °C(lit.)
• Boiling Point: 705.7 °C at 760 mmHg
• Flash Point: 150°C
• Appearance: White/Powder
• Density: 0,8 g/cm3
• Vapor Density: 0.62 (vs air)
• Vapor Pressure: 6.63E-21mmHg at 25°C
• Storage Temp.: Store at RT.
• Solubility: H2O: 1 M at 20 °C, clear, colorless
• Water Solubility: SOLUBLE
• Sensitive: Light Sensitive
• Stability: Stable, but light sensitive. Incompatible with strong oxidizing agents.
• Merck: 14,8964
• BRN: 650741
• CAS DataBase Reference: 5-Sulfosalicylic acid dihydrate(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Sulfosalicylic acid dihydrate(5965-83-3)
• EPA Substance Registry System: 5-Sulfosalicylic acid dihydrate(5965-83-3)

Safety Data

• Hazard Codes: Xn,C,Xi
• Statements: 22-36/37/38-34
• Safety Statements: 26-45-36/37/39-36
• RIDADR: UN 3261 8 / PGII
• WGK Germany: 3
• RTECS: VO6500000
• F: 8
• TSCA: Yes
• HazardClass: 8
• Hazardous Substances Data: 5965-83-3(Hazardous Substances Data)

Usage

Chemical Properties

white crystalline powder

Uses

Different sources of media describe the Uses of 5965-83-3 differently. You can refer to the following data:
1. For reducing and fixation of proteins in agarose and polyacrylamide gels
2. 5-Sulfosalicylic Acid Dihydrate is for reducing and fixation of proteins in agarose and polyacrylamide gels.
3. 5-Sulfosalicylic acid dihydrate may be used in the preparation of 1:1 proton-transfer organic adduct, 3-aminopyridin-ium 3-carb-oxy-4-hydroxy-benzene-sulfonate monohydrate and the anhydrous adduct.

General Description

5-Sulfosalicylic acid is a strong acid capable of protonating water. It forms a new theophylline complex, which was investigated by X-ray photoelectron spectroscopy (XPS). It forms 1:1 proton-transfer compounds with the ortho-substituted monocyclic heteroaromatic Lewis bases. Their crystal structures have been studied.

Purification Methods

Crystallise the acid from H2O. Alternatively, it is converted to the monosodium salt which is crystallised from H2O and washed with a little H2O, EtOH and then Et2O. The acid is recovered by acidifying. The S-4-chlorobenzylisothiuronium salt has m 181o (from dioxane). [Beilstein 11 H 411, 11 II 232, 11 III 704.]

InChI:InChI=1/C7H6O6S.2H2O/c8-6-2-1-4(14(11,12)13)3-5(6)7(9)10;;/h1-3,8H,(H,9,10)(H,11,12,13);2*1H2