Kaoliang colour - Names and Identifiers
Kaoliang colour - Physico-chemical Properties
| Physical and Chemical Properties | Brick red amorphous powder, can also be liquid, paste or block. Slightly special odor. Soluble in water, ethanol, water content of more than 40% of propylene glycol, methanol and hydrochloric acid, insoluble in oil, ether, hexane, chloroform, acetate and other non-polar solvents. The aqueous solution is transparent red-brown, 1% aqueous solution pH 7.0~7.5. In acidic and alkaline conditions can deepen the red-brown color. It is stable to light and heat, and can form chromium salts with metal ions (but can add trace amounts of sodium pyrophosphate and the like, that is, can inhibit the influence of metal ions). Strong staining. |
Kaoliang colour - Introduction
Sorghum red is a red synthetic dye, chemical name is azobiphenyl chloride. It has good solubility and light stability, and can be dissolved in many organic solvents. The main use of sorghum red is used as a dye and pigment, common in the textile industry, plastic products, paint, ink and other fields.
The preparation of sorghum red is generally synthesized by azo reaction. First, benzidine is reacted with a nitrated phenol to produce an azo compound. Then, the azo compound is reacted with chloride to produce sorghum red.
regarding the safety information of sorghum red, the following points should be paid attention:
1. Sorghum Red has certain toxicity, which may cause irritation and allergic reaction to human body. During operation, attention should be paid to protective measures, such as wearing protective gloves and safety glasses, and avoiding direct contact with skin and eyes.
2. Sorghum red belongs to flammable substances, should be away from open fire and high temperature environment, to avoid fire and explosion accidents.
3. In the use of sorghum red, should comply with the relevant laws and regulations and safety procedures, to ensure good ventilation conditions, to avoid inhalation of its particles or gas.
4. People who can have an allergic reaction to sorghum Red should avoid contact with the substance.
Although sorghum red is widely used in many industries, safety is of paramount importance during use. If any safety problems occur during the operation, you should stop using it immediately and seek professional help.
Last Update：2024-04-09 21:01:54