Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate]
Pigment Red 49:1
CAS: 1103-38-4
Molecular Formula: C40H26BaN4O8S2
Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate] - Names and Identifiers
| Name | Pigment Red 49:1 |
| Synonyms | 105 3144 3144R RED R Lithol Red BA lithol red ba Barium lithol red Pigment Red 49(Ba) Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate] Barium bis[2-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonate] barium bis{2-[(E)-(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate} barium bis{2-[(2Z)-2-(2-oxonaphthalen-1(2H)-ylidene)hydrazinyl]naphthalene-1-sulfonate} |
| CAS | 1103-38-4 |
| EINECS | 214-160-6 |
| InChI | InChI=1/2C20H14N2O4S.Ba/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/b2*22-21+ |
Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate] - Physico-chemical Properties
| Molecular Formula | C40H26BaN4O8S2 |
| Molar Mass | 892.11 |
| Density | 1.66[at 20℃] |
| Storage Condition | Room Temprature |
| 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: Neutral Red relative density: 1.48-1.90 Bulk density/(lb/gal):12.3-15.8 average particle size/μm:0.10 particle shape: Rod shape specific surface area/(m2/g):32-67 pH value/(10% slurry):7.7-8.7 oil absorption/(g/100g):40-65 hiding power: translucent diffraction curve:  reflection curve:  red powder, strong coloring power but poor hiding power. Slightly soluble in hot water, ethanol, acetone and sodium hydroxide solution, dissolved in sulfuric acid for the line light purple, diluted time becomes reddish purple, and then red-brown precipitation, nitric acid for brown red solution, other properties in general. |
| Use | The pigment is a barium salt lake, giving neutral red light, and its application in plastics is limited due to its poor heat resistance stability. It is mainly used for printing 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; The number of commercial brands on the market is as much as 54. More economical pigment varieties. Mainly used for ink and cultural supplies of the color pigment, such as watercolors, oil colors, can also be used for paint. |
Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate] - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | this pigment variety is barium salt lake, giving neutral red light, which limits its application in plastics due to unsatisfactory heat resistance and stability. Looking for samples is more than the price of 10,000 water chemical mall. It is mainly used for printing ink coloring, especially for publishing gravure ink. The dosage form of resin treatment can reduce its copper light phenomenon. Special dosage form is suitable for water-based printing ink. |
| preparation | dissolving 2-naphthylamine -1-sulfonic acid (tulic acid) in ammonia water or sodium hydroxide, cooling to 0-5 ℃, adding salt and acid to analyze, adding sodium nitrite aqueous solution within 30min, carrying out diazo reaction, reacting for 1h for standby; Dissolve 2-naphthol in sodium hydroxide aqueous solution, add diazonium salt at 10 ℃ for 30min, coupling at pH = 9.5-10, adding hot pine soap solution and barium chloride aqueous solution, pH = 8.5, reacting at 60 ℃ for 1h, filtering, washing with water and drying. |
| use | more economical pigment varieties. It is mainly used for coloring pigments such as watercolor and oil color of ink and stationery, and can also be used for coatings. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:04:16
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Product Name: Pigment Red 49:1 Visit Supplier Webpage Request for quotationCAS: 1103-38-4
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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