1.Sulphur Black Bluish and Sulphur Black Reddish production formula

2. precautions

Sulphur Black  is a kind of black pigment, mainly used in dyeing, printing, painting and other industries. This paper will introduce the production formula and precautions of Sulphur Black Br.

First, Sulphur Black Br production formula

The production formula of Sulphur Black Br mainly includes the following steps:

1. Prepare raw materials

The main raw materials of Sulphur Black Br are aniline, sulfuric acid, nitrobenzene, formaldehyde and so on. These raw materials need to be prepared in a certain proportion.

2. Reaction preparation

Raw materials such as aniline, sulfuric acid and nitrobenzene are mixed according to a certain proportion and react at a certain temperature. It is necessary to control the reaction time and temperature during the reaction process to ensure the quality of the product.

3. Filter and polyester

After the reaction, the product is filtered and cleaned to remove impurities and unreacted raw materials.

4. Dry and grind

After cleaning, the product is dried and ground to obtain a fine, Sulphur Black Br pigment.

Ii. Precautions

In the production process of Sulphur Black Br, the following points need to be noted:

1. Perform safe operations

The raw materials and reaction products of Sulphur Black Br have certain toxicity and corrosion, and it is necessary to pay attention to safe operation in the production process to prevent personnel and environmental damage.

 2. Control reaction conditions

In the production process of Sulphur Black Br, reaction conditions need to be controlled, including reaction temperature, reaction time, raw material ratio, etc. Different reaction conditions will affect the quality and yield of the product.

3. Strictly control the production process

The production process of Sulphur Black Br needs to be strictly controlled, including the preparation of raw materials, the control of the reaction process, the filtration, cleaning, drying, research and so on. There is strict control of each link in order to ensure the quality and stability of the product.

4. Environmental awareness

The production process of Sulphur Black Br needs to pay attention to environmental awareness to avoid environmental pollution. At the same time, it is necessary to use resources rationally and reduce waste in the production process。

Our company mainly produces Sulphur Black Br, Liquid sulphur black,Sulphur blue，Sulphur red，

Perennial export to Bangladesh. India. Pakistan. Egypt, and Iran. Both the supply and the quality are particularly stable. More important is the price advantage.