6358-31-2 Usage
General Description
Bright yellow powder. Considerable change and tendency to sublime when heated to melting point.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile
Pigment Yellow 74 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Fire Hazard
Flash point data for Pigment Yellow 74 are not available. Pigment Yellow 74 is probably combustible.
Flammability and Explosibility
Nonflammable
Properties and Applications
TEST ITEMS
SPECIFICATION
APPEARANCE
YELLOW POWDER
SHADE
GREENISH
HEAT RESISTANCE
160 °C min
LIGHT FASTNESS
6-7
ACID RESISTANCE
5
ALKALI RESISTANCE
5
FASTNESS TO BLEEDING
5
OIL ABSORPTION
40-45%
SPECIFIC SURFACE
27 m
2
/g
DENSITY
1.60 g/cm
3
RESIDUE ON 80 MESH
5.0% max
WATER SOLUBLE
1.0% max
VOLATITE 105 °C
1.0% max
TINTING STRENGTH
100-105 %
TEST ITEMS
SPECIFICATION
APPEARANCE
YELLOW POWDER
SHADE
GREENISH
HEAT RESISTANCE
160 °C min
LIGHT FASTNESS
6-7
ACID RESISTANCE
5
ALKALI RESISTANCE
5
FASTNESS TO BLEEDING
5
OIL ABSORPTION
40-45%
SPECIFIC SURFACE
27 m
2
/g
DENSITY
1.60 g/cm
3
RESIDUE ON 80 MESH
5.0% max
WATER SOLUBLE
1.0% max
VOLATITE 105 °C
1.0% max
TINTING STRENGTH
100-105 %
Check Digit Verification of cas no
The CAS Registry Mumber 6358-31-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,5 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6358-31:
(6*6)+(5*3)+(4*5)+(3*8)+(2*3)+(1*1)=102
102 % 10 = 2
So 6358-31-2 is a valid CAS Registry Number.
InChI:InChI=1/C18H18N4O6/c1-11(23)17(18(24)19-13-6-4-5-7-15(13)27-2)21-20-14-9-8-12(22(25)26)10-16(14)28-3/h4-10,17H,1-3H3,(H,19,24)
6358-31-2Relevant articles and documents
Production process and system for insoluble azo pigments
-
Page/Page column 8; 10, (2008/06/13)
An insoluble azo pigment is produced by ejecting a diazo solution and a grounding solution continuously into an ejector such that within the ejector, the diazo solution and grounding solution are mixed with each other and are subjected to a coupling reaction. A production system for the insoluble azo pigment includes the following units (1) to (4): (1) a first feed tank (2) for a first fluid selected from the diazo solution or grounding solution, a first flow path (a) for feeding the first fluid to nozzles of an ejector (1), and a pump (d) for feeding the first fluid through the first flow path; (2) the ejector (1) provided with the nozzles, a suction chamber, a diffuser, and a temperature control device (g); (3) a second feed tank (3) for a second fluid, a second flow path (b) for guiding the second fluid into the suction chamber, and a flow control device (e) for controlling a flow rate of the second fluid through the second flowpath (b); and (4) a heat treatment tank (5) for subjecting to heat treatment a suspension of the insoluble azo pigment formed by a reaction between the first fluid and the second fluid, and a third flow path (a′) for guiding the suspension from the diffuser to the heat treatment tank.
Process for the preparation of pigment compositions
-
Example 1, (2010/01/31)
Preparation of stabilized pigment compositions, comprising mixing a water-miscible quaternary ammonium compound of formula III wherein R1, R2, R3 and R4 independently of each other stand for C1-C22aklyl, C2-C22alkenyl, benzyl, pyridyl, quinolyl, isoquinolyl or polyoxyalkylenyl, and X? is an anion, a water-immiscible organic solvent and a pigment.
