Methyl Red Cas:493-52-7

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Methyl Red CAS 493-52-7 manufacturer supply

Assay: 99% Appearance: Shiny purple crystal or reddish brown powder Capacity: Depending on the order Packaging: 25kg/fiber drum Sample: available

related documents:

• COA of Methyl red CAS 493-52-7
• TDS of Methyl Red CAS 493-52-7

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Category: Pigment & Dyestuff

• Description

Description

Methyl Red

Methyl Red 

Product Name:Methyl Red CAS No:493-52-7 Molecular Fomula:C15H15N3O2 Molecular weight:269.3 Appearance:Shiny purple crystal or reddish brown powder Assay:99% Molecular Strycture:

Methyl Red Typical Properties

Item	Specifications
maximum absorption wavelength，λ1 （PH4.5）,nm	523~528
λ2（PH6.2）,nm	427~437
Mass absorption coefficient，λ1 （PH4.5）,L/(cm·g) ≥	130
λ2（PH6.2）,L/(cm·g) ≥	70
PH domain color	4.5 (red) to 6.2 (yellow)
Ethanol dissolution test	Qualified
Loss on drying≤	1
Residue on ignition (Sulfate)≤	0.2

 

Methyl Red Usage Live protozoan staining; acid-base indicator, pH change range from 4.4 (red) to 6.2 (yellow); titration of ammonia, weak organic bases and alkaloids, but not suitable for organic acids other than oxalic acid and picric acid; can be combined with Chemicalbook Bromocresol green and methylene blue constitute a mixed indicator to shorten the color range and increase the sensitivity of the color change; adsorption indicator for precipitation titration, such as thorium nitrate titration of fluoride ion; verification of free chlorine, chlorite and other oxidants…

Methyl Red Package 25kg/fiber drum.

Methyl Red Storage Treasury is ventilated, low temperature and dry;

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