Name | Pigment Red 49:2 |
Synonyms | Lithol Dark Red Calcium Lithol Red C.I. Pigment Red 49 Ca salt C.I. Pigment Red 49, Calcium Toner calcium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate] calcium 2-[(2-hydroxy-1-naphthyl)azo]naphthalene-1-sulfonate 2-[(2Z)-2-(2-oxonaphthalen-1(2H)-ylidene)hydrazino]naphthalene-1-sulfonic acid calcium bis{2-[(2Z)-2-(2-oxonaphthalen-1(2H)-ylidene)hydrazinyl]naphthalene-1-sulfonate} |
CAS | 1103-39-5 |
EINECS | 214-161-1 |
InChI | InChI=1/2C20H14N2O4S.Ca/c2*23-18-12-10-13-5-1-3-7-15(13)19(18)22-21-17-11-9-14-6-2-4-8-16(14)20(17)27(24,25)26;/h2*1-12,23H,(H,24,25,26);/q;;+2/p-2 |
Molecular Formula | C40H26CaN4O8S2 |
Molar Mass | 794.86444 |
Storage Condition | RT, dry |
Physical and Chemical Properties | solubility: slightly soluble in ethanol, acetone and hot water; Red violet in concentrated sulfuric acid, which is diluted to red brown precipitate; Brown red solution in concentrated nitric acid; slightly soluble in aqueous sodium hydroxide solution, alcohol solution with hydrochloric acid changed to brown purple. hue or color: brilliant blue and red relative density: 1.38-1.96 Bulk density/(lb/gal):11.5-16.3 average particle size/μm:0.19 particle shape: Rod shape specific surface area/(m2/g):21-45 pH value/(10% slurry):8.0 oil absorption/(g/100g):44-61 hiding power: transparent reflection curve: red powder. The color was darker than that of lisol red, and the penetration resistance was better. The others were similar to the lisol red. |
Use | The application performance of the pigment and C.I. Pigment Red 49:1 phase approximation, giving blue red, thermal stability is not ideal, limiting the application in plastics; Mainly used in ink coloring, especially for publishing gravure ink, the dosage form of resin treatment can reduce the copper light phenomenon; The special dosage form is suitable for water-based printing ink; There are 28 kinds of commercial dosage forms. It is mainly used for the coloring of inks, paints, watercolors and paints, as well as paper and leather. |
chemical properties | red powder. The color is darker than Lisol, and the permeability is better. Others are similar to Lisol Red. |
use | mainly used for coloring ink, paint, watercolor and oil color, as well as paper and leather. used for coloring ink, printing iron ink, leather, stationery |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |