中鉻黃

又稱顏料黃34。主要成分為鉻酸鉛的顏料，其化學(xué)組成為pbcro4，含量約為90％～94％，外觀為淺紅黃色粉末，為單斜晶形，密度為5.1～6.0g/cm3，吸油量為13～27g/100g，抗色滲性極好，遮蓋力居于淺鉻黃和深鉻黃之間，明度與淺鉻黃相等，優(yōu)于深鉻黃，耐酸性與淺鉻黃相等，優(yōu)于深鉻黃，耐堿性差，分散性好。

　　中鉻黃是以硝酸鹽如硝酸鉛、鉻酸鹽如重鉻酸鈉為原料，嚴(yán)格控制各種反應(yīng)條件形成穩(wěn)定的單斜晶形中鉻黃粒子，經(jīng)過(guò)濾、干燥、粉碎而成。主要用于涂料，尤其是路標(biāo)涂料、油墨和塑料等。

　　物化性質(zhì)(physical properties)  

1、色光（與標(biāo)準(zhǔn)樣品比）：近似~微；2、鉻酸鉛含量：≥90.0%；3、水溶物含量：≤1.0%；4、水萃取液ph值：5.0-8.0；5、水分含量：≤1.0%；6、遮蓋力g/m2≤55；7、著色力（與標(biāo)準(zhǔn)樣品比）：≥95%；8、吸油量：≤22%；9、篩余物（320目）≤0.5%  

產(chǎn)品理化性質(zhì)：粉狀物質(zhì)，無(wú)臭無(wú)氣，難溶于水，難溶于丙酮，難溶于乙醇，不溶于堿，熔點(diǎn)≥300℃，無(wú)爆炸危險(xiǎn)性，無(wú)毒、無(wú)放射性，非易燃，非腐蝕性。中鉻黃顏料是一種色彩鮮艷的黃色顏料，并具有遮蓋力強(qiáng)、著色力高、耐熱，易研磨分散等優(yōu)點(diǎn)。

廣泛用于油漆、油墨、橡膠、塑料、文教等

the chrome yellow

 also known as pigment yellow 34. main ingredients for leadchromate pigments, its chemical composition is pbcro4, content isabout 90% ~ 90%, appearance is pale red yellow powder, tomonoclinic crystal shape, density of 5.1 ~ 6.0 g/cm3, oilabsorption is 13 ~ 27 g / 100 g, excellent color and permeabilityresistance, hiding power in light chrome yellow and dark chromeyellow, lightness and equal light chrome yellow, better than thedark chrome yellow, acid resistance and equal light chrome yellow,better than the dark chrome yellow, alkali resistance is poor, gooddispersibility.

 in chrome yellow in nitrate, lead nitrate, chromium acidsalts such as sodium dichromate as raw materials, strict control ofvarious reaction conditions to form stable monoclinic crystal shapeof chrome yellow particles, the filtration, drying and crushing. ismainly used in coating, especially road signs of paint, ink andplastic, etc.

 physical and chemical properties, physical properties)

 1, color (than) with standard sample: approximate ~ micro;2 lead, chromium acid: 90.0% or higher; 3, water soluble content:1.0% or less; 4, water extracted liquid ph value: 5.0-8.0; 5,moisture content: 1.0% or less; 6, covering power, 55 g/m2 or less;7, tinting strength, than with standard sample: 95% or higher; 8,oil absorption: 22% or less; 9, screenings (320 mesh) of 0.5% orless

 product physical and chemical properties: powderysubstance, odourless airless, poorly soluble in water, soluble inacetone, soluble in ethanol, not soluble in alkali, melting point300 ℃ or higher, no explosion danger, non-toxic, non-radioactive,nonflammable, non corrosive. in chrome yellow pigment is a kind ofbright yellow pigment, and has strong hiding power, high tintingstrength, heat resistance, easy grinding dispersion, etc.

 widely used in paint, printing ink, rubber, plastic,culture and education, etc

本產(chǎn)品的品牌是天津，品種是中鉻黃，型號(hào)是103，名稱是鉛鉻黃，遮蓋力≤是-（g/m2），CAS是優(yōu)級(jí)，粒度是400（目）