Deep Chrome Yellow(P.Y34)

Detailed Product Description

CAS number: 1344-37-2
English name: Yellow Pigment
English synonyms: CHROME YELLOW 34, The top sulfochromate yellow, Blue15-4, KROLORYELLOW, LEADSULPHOCHROMATE, PRIMROSEYELLOW, PREDARKENEDMEDIUMCHROMEYELLOW, PREDARKENEDLEMONCHROMEYELLOW, CHROMELIGHTYELLOW, Bleisulfochromatgelb, C 103, 77600 ci, C.p. chrome yellow one 1066, C.p. chrome yellow 107.4 one, The chrome yellow c.p. 1085, The chrome yellow 1298 c.p., Chromastral green hm, Chromastral green m, Chromastral green y, 34 (ci 77603 yellow Pigment
Chinese name: paint yellow 34
English synonyms: orange (cr) color, Lead chromium, Pigment 34, Ci pigment 34, Paris yellow, But dragon yellow
CBNumber: CB8512280

Formula: PbCrO4 + PbSO4
Weight: 576.07
MOL File: 1344-37-2. MOL

Pigment and chemical properties
CAS DataBase: 1344-37-2 (CAS) DataBase instead

EPA chemical information: 1344-37 Substance (EPA) 2 -

Safety information
Danger: T, N

Danger category code: 61-33-40-50/53-62

Safety: 53-45-60-61

Dangerous goods transport Numbers: the function

HazardClass 6.1 (b) :

PackingGroup: III

Poison material Data: 1344-37-2 (Hazardous Substances Data),

Pigment and properties, applications and the production process
Chemical properties
Bright yellow single crystal wafer department. G/cm3 density 6.12, melting 844 us degrees Celsius. Insoluble in water, soluble in acid, oil and alkali and inorganic acid. When hydrogen sulfide into black, alkali to orange. Tinting strength and covering power is strong. Can share with lithopone and group of green. Toxic. The ratio of raw material and color with the preparation conditions, have orange chrome yellow, dark chrome yellow, chrome yellow, shallow chrome yellow, lemon fizzles out five.
[3PbCrO4 twist piled chrome yellow, 2PbSO4 + Al (OH) 3 + AlPO4]. Chromic acid levels not less than 50%, bright color, green, paint, with good gloss blue paint can be a bright color, the emerald equivalent 10G. Lightfastness of 4 ~ 5 levels. Resistance to 140 degrees Celsius. Water permeability, oil perjmeability for grade 1. Acid and alkali resistance for 3 grade.
Shallow chrome yellow (5PbCrO4 · 2PSO4 + Al (OH) 3 + AlPO4]. Chromic acid levels of not less than 60, bright color, good dyeing force, good gloss, paint with pale blue paint can match. Chromic acid lead to more than lemon chrome yellow colour. Equivalent of 4G. Resistant level 5. Heat-resistance. Water for 140 degrees Celsius, oil perjmeability for grade 1. Acid, alkali resistance for 3 grade.
In PbCrO4 chrome yellow (+ PbSO4). Pure color, paint, with good gloss blue paint can match into green. The highest levels of chromic acid, more than 90%. Colour and lustre is equivalent to G. Lightfastness of 4 ~ 5 levels. Resistance to 140 degrees Celsius. Water permeability, oil perjmeability for grade 1. Acid and alkali resistance for 3 grade.
Deep chrome yellow (PbCrO4 + PbCrO4 · PbO). Chromic acid lead is occupied 85%, with a red color, good dyeing force, colour and lustre is equivalent to a GR. 5 levels of resistance to light. Resistance to 140 degrees Celsius. Water permeability, oil perjmeability for 3 grade.
Orange chrome yellow (PbCrO4 · PbO). Is the basic content of lead, chromium acid PbCrO4 not less than 55%, colour and lustre is orange. Good resistance to light, can reach 5 ~. Resistance to 150 degrees c. Water permeability, oil perjmeability for grade 1. Acid and alkali resistance for 3 grade.

use
Inorganic yellow pigment. Excellent resistance to light and heat resistance, water resistance, alkali, acid solvent. Can be used in all kinds of thermoplastic and thermosetting plastic shading. Also can be used in the manufacture of paint and ink. Stationery industry for manufacturing watercolor and paint pigment. Papermaking industry, paper colouring. Rubber is used in rubber industry.

Production methods
Response formula:
PbO + HCl in - Pb (OH) Cl
2Pb (OH) Cl Na2Cr2O7-2PbCrO4 2NaCl + + + H2O
Operation: 1800kg will lead oxide, 19kg hydrochloric acid and 20kg mixed with water, 14m3 at 40 ° c 180min generated in the mix of alkali, then add the chlorinated lead 783kg sodium dichromate, 378kg sulfuric acid, 90kg vitriolic 2000L and water, can get about 2500kg chrome yellow pigment.