FAST BLUE SALT RR

FAST BLUE SALT RR - Names and Identifiers

Name	4-Benzamido-2,5-Dimethoxyaniline
Synonyms	CI 37155 FAST BLUE RR FAST BLUE SALT RR FAST BLUE RR BASE AZOIC DIAZO NO 24 LABOTEST-BB LT00133744 Azoic Diazo Component 24 (37155) 4-Benzamido-2,5-Dimethoxyaniline
CAS	6268-05-9
EINECS	228-441-6

FAST BLUE SALT RR - Physico-chemical Properties

Molecular Formula	C15H16N2O3
Molar Mass	272.3
Density	1.245±0.06 g/cm3(Predicted)
Melting Point	165-168°C(lit.)
Boling Point	378.2±42.0 °C(Predicted)
Appearance	Brown powder
pKa	12.05±0.70(Predicted)
Storage Condition	2-8°C
MDL	MFCD00008369

FAST BLUE SALT RR - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany	3

FAST BLUE SALT RR - Introduction

Solid blue RR (alkali) is an organic synthetic dye and an important indicator. The following is an introduction to the nature, use, preparation and safety information of blue RR (alkali):

Nature:
Solid blue RR (alkali) is a blue crystal, soluble in water and alcohol. It has good oxidation resistance, light resistance and heat resistance. The compound is a strong acid dye, showing a wide range of acid-base indicating function.

Use:
Solid blue RR (alkali) is widely used in pH indicators in chemical laboratories. It can change color in acid-base environment, from red to purple, and then to blue. This makes it in the Determination of pH value, acid-base neutralization reaction has an important application.

Preparation Method:
There are many synthetic methods of solid blue RR (alkali). One of the methods is to react n-butyl M-phenylenediamine with an oxidizing agent (such as a metal oxide or hydrogen peroxide) to obtain solid blue RR (base).

Safety Information:
Blue RR (alkali) is generally considered to be relatively safe for the human body, but it is still necessary to pay attention to safe use. It is a dyeable compound that may cause irritation to the skin and eyes. Therefore, when handling, avoid direct contact with the substance and wear appropriate protective gloves and eye protection equipment. In addition, pay attention to follow the correct operating procedures and waste disposal methods of the laboratory to ensure safe use.

Last Update：2024-04-09 20:48:19