4198-19-0 Usage
Preparation
3,3′-Dimethoxylbenzidine double nitriding, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?(2 Moore) coupled.
General Description
Blue solid.
Air & Water Reactions
Man be explosive when suspended in air under specific concentrations. Soluble in water.
Reactivity Profile
tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate] 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 are not available for tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate] , but tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate] is probably combustible.
Properties and Applications
blue. Soluble in water as dark blue, and adequate soluble in alcohol. The strong sulfuric acid for green light blue, red light blue after diluted into. The dye solution to join strong hydrochloric acid as dark blue; Add thick sodium hydroxide solution for violet black.
Standard
Acid Resistance
Alkali Resistance
Light Fastness
Soaping
Water
Fading
Stain
Fading
Stain
ISO
5
4
3
1-2
2
AATCC
5
1
1-2
3-4
1
Standard
Acid Resistance
Fading
Stain
ISO
5
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 4198-19-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,9 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4198-19:
(6*4)+(5*1)+(4*9)+(3*8)+(2*1)+(1*9)=100
100 % 10 = 0
So 4198-19-0 is a valid CAS Registry Number.