Medium Chrome Yellow | Lemon Yellow | Pigment Yellow 34

Product performance:

It has excellent physical and chemical properties. Covering power is strong, high tinting strength, colour and lustre downy, stable performance, and is non-toxic green environmental protection paint; Alkali resistance, weak acid and dilute acid has certain stability, excellent light resistance, weather resistance, insoluble in water and organic solvents, has excellent rust resistance to ultraviolet radiation, and so on. 

Physical Properties:

A kind of azo type of acid dyes. Orange powder. Yellow is dissolved in water, its aqueous solution of sulfuric acid, nitric acid, hydrochloric acid and sodium hydroxide is still yellow. Mainly used in food, beverage, medicine and cosmetics and cosmetic color, also can be used for wool, silk dyeing and manufacturing of the lake. By the aminobenzene sulfonic acid by diazotization, and 1 - (4 - sulpho phenyl) - 3 - carboxylic - 5 - pyrazolone coupling, refined in alkaline solution.

Basic performance:

Medium chrome yellow  also known as pigment yellow 34. Main ingredients for lead chromate 

pigments,its chemical composition is PbCrO4,content is about 90% ~ 90%, appearance is pale red yellow powder, for monoclinic crystal shape, density of 5.1 ~ 6.0 g/cm3, oil absorption is 13 ~ 27 g / 100 g, excellent color and permeability resistance, hiding power in light chrome yellow  and betweendeep chrome yellow, lightness and equal light chrome yellow, better than the dark chrome yellow, acid resistance and equal light chrome yellow, better than the dark chrome yellow, alkali resistance is poor,good dispersion.

Synthesis of water-soluble pigment, bright yellow, solid-colored varieties. The right amount of lemon Huang Ke safely used in food, beverage, pharmaceutical, cosmetic, feed, tobacco, toys, food packaging materials such as shading. China allows the use of synthetic pigments have amaranth, carmine, tartrazine, sunset yellow and indigo. They respectively used in fruit, fruit powder, fruit syrup, soda water, canned, dispensing wine, red, green, silk, and cakes on the surface of the color. The synthesis of pigment on the surface of the food to dress up indeed exceptionally attractive, but they are banned for the following foods: meat and its processed products (including internal processed products), fish and its processed products, fruits and their products (including fruit juice, preserved fruit, jam, jelly, and brewing wine, spices, infant food, biscuits, etc.  

Specification:

Main application:  

Mainly used for plastic and coating, paint color, also used in synthetic fiber dope shading.