2-naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)) - Names and Identifiers
2-naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)) - Introduction
Sulfur Blue 15 is an organic dye, its chemical name is methylene blue. The following is a description of the nature, use, preparation and safety information of Sulphur Blue 15:
Nature:
Sulfide Blue 15 is a dark blue crystal with good solubility. It has good stability to light and is not easy to fade. This compound is a weakly acidic dye that appears blue under acidic conditions and red under basic conditions.
Use:
Sulfur Blue 15 is mainly used in the dye industry, especially in textile dyeing. It can dye fibers such as wool, linen and cotton to produce vibrant blue colors. In addition, sulfur blue 15 can also be used for pigment preparation, dye ink production and some chemical experiments in the indicator.
Preparation Method:
The production method of Sulfide Blue 15 is generally carried out by reacting o-nitroaniline with caustic soda (sodium hydrosulfide). The specific step is to heat-react o-nitroaniline with caustic soda at appropriate temperature and reaction conditions to produce the crystallization of sulfide blue 15.
Safety Information:
Sulfur Blue 15 is relatively safe under normal circumstances, but the following matters still need to be paid attention:
1. Avoid direct contact with skin and eyes to avoid irritation or allergic reactions;
2. in the operation and storage should pay attention to fire and explosion prevention measures;
3. use ventilation measures to avoid inhalation of dust;
4. if accidental contact or inhalation, should be promptly rinsed with water and seek medical help.
Last Update:2024-04-09 20:52:54