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1.06078

Methyl red sodium salt (C.I. 13020)

Name: Methyl red sodium salt (C.I. 13020)
Brand: MM

pH indicator, ACS, water-soluble

Synonym(s):

Methyl red sodium salt (C.I. 13020), 2-[(4-Dimethylamino)phenylazo]benzoic acid sodium salt, 4-(Dimethylamino)azobenzene-1,2′-carboxylic acidsodium salt

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About This Item

Empirical Formula (Hill Notation):

C₁₅H₁₄N₃NaO₂

CAS Number:

845-10-3

Molecular Weight:

291.28

UNSPSC Code:

12352107

EC Index Number:

212-682-9

NACRES:

NA.05

MDL number:

MFCD00002426

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Properties

Product Name

Methyl red sodium salt (C.I. 13020), water-soluble ACS

grade

ACS reagent

Quality Level

200

form

solid

loss

≤5% loss on drying, 110°C

pH

8.2 (25 °C, 10 g/L in H₂O)

solubility

800 g/L

bulk density

360 kg/m³

storage temp.

2-30°C

SMILES string

[Na+].N(C)(C)c1ccc(cc1)N=Nc2c(cccc2)C(=O)[O-]

InChI

1S/C15H15N3O2.Na/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20;/h3-10H,1-2H3,(H,19,20);/q;+1/p-1

InChI key

GNTPCYMJCJNRQB-UHFFFAOYSA-M

Description

Application

Removal of Methylene Blue and Methyl Red from Aqueous Solutions Using Activated Carbons Obtained by Chemical Activation of Caraway Seed.: This study focuses on the removal of methyl red and methylene blue dyes from aqueous solutions using activated carbons derived from caraway seeds. The research highlights the efficiency of these biocarbons in adsorbing the dyes, providing a potential low-cost method for wastewater treatment (Paluch et al., 2023).

Microporous Biocarbons Derived from Inonotus obliquus Mushroom and Their Application in the Removal of Liquid and Gaseous Impurities.: This paper investigates the use of microporous biocarbons from Inonotus obliquus mushroom for removing impurities, including methyl red, from water and gas streams. The biocarbons demonstrated high adsorption capacities, suggesting their potential in environmental purification applications (Bazan-Wozniak et al., 2022).

Biocarbons Obtained from Fennel and Caraway Fruits as Adsorbents of Methyl Red Sodium Salt from Water System.: The study explores the effectiveness of biocarbons produced from fennel and caraway fruits in adsorbing methyl red sodium salt from water. It emphasizes the sustainable approach of using agricultural waste to create efficient adsorbents for water treatment (Bazan-Wozniak et al., 2022).

Analysis Note

Transition range: pH 4.5 - pH 6.2red violet - brownish yellow
Appearance of solution: passes test
Loss on drying (110 °C): ≤ 5
Transition range (according to ACS): passes test

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c