- Pigment Red 49:1
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- $10.00 / 1ASSAYS
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2026-01-26
- CAS:1103-38-4
- Min. Order: 1ASSAYS
- Purity: 99%
- Supply Ability: 10 ton
- Barium lithol red
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- $50.00 / 5mg
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2026-01-05
- CAS:1103-38-4
- Min. Order:
- Purity: ≥98%
- Supply Ability: 10g
- Pigment Red 49:1
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- $1.00 / 1KG
-
2020-01-03
- CAS:1103-38-4
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 10000KGS
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| | Pigment Red 49:1 Basic information |
| Product Name: | Pigment Red 49:1 | | Synonyms: | PIGMENT RED 49:1;2-(2-Hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid barium salt (2:1);lithol red ba;Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate];Barium bis[2-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonate];D & C Red No.12;Pigment Red 49(Ba);PR49:1 BARIUM LITHOL | | CAS: | 1103-38-4 | | MF: | C20H16BaN2O4S | | MW: | 517.75 | | EINECS: | 214-160-6 | | Product Categories: | Organic-metal salt | | Mol File: | 1103-38-4.mol |  |
| | Pigment Red 49:1 Chemical Properties |
| | Pigment Red 49:1 Usage And Synthesis |
| Uses | Pigment Red 49:1 is a red azo pigment, popular as artists'' coloring materials in the first half of the twentieth century | | Flammability and Explosibility | Not classified | | Synthesis | Dissolve 2-naphthylamine-1-sulfonic acid (tuliptic acid) in ammonia or sodium hydroxide, cool down to 0-5 ??, add hydrochloric acid acid precipitation, add sodium nitrite aqueous solution in 30min, diazotization reaction, reaction 1h, standby; dissolve 2-naphthol in sodium hydroxide aqueous solution, add diazotization salt at 10 ??, 30min, coupled at pH = 9.5-10, add hot rosin soap solution and Barium chloride aqueous solution, pH = 8.5, 60 ?? reaction 1h, filtration, washing, drying. | | Properties and Applications |
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TEST ITEMS
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SPECIFICATION
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APPEARANCE
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RED POWDER
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SHADE
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YELLOWISH
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HEAT RESISTANCE
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160 °C min
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LIGHT FASTNESS
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4
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ACID RESISTANCE
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5
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ALKALI RESISTANCE
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4
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FASTNESS TO BLEEDING
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5
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OIL ABSORPTION
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45-50%
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SPECIFIC SURFACE
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26 m
2
/g
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DENSITY
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1.70 g/cm
3
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RESIDUE ON 80 MESH
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5.0% max
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WATER SOLUBLE
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1.0% max
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VOLATITE 105 °C
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1.0% max
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TINTING STRENGTH
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100-105 %
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| | Pigment Red 49:1 Preparation Products And Raw materials |
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