Olive Green B
Vat Green 3
CAS: 3271-76-9
Molecular Formula: C31H15NO3
Olive Green B - Names and Identifiers
| Name | Vat Green 3 |
| Synonyms | C.I. 69500 C.I. 70311 Vat Olive B Vat Green 3 C.I.VATGREEN3 Olive Green B C.I. Vat Green 3 Vat Olive Green B Cibanone Olive B-01 Fabrivat Olive Green B Vat green 3 (C.I. 69500 Anthramar Olive Green B anthra[2,1,9-mna]naphth[2,3-h]acridine-5,10,15(16H)-trione anthra[2,1,9-mna]naphtho[2,3-h]acridine-5,10,15(16H)-trione |
| CAS | 3271-76-9 |
| EINECS | 221-897-7 |
| InChI | InChI=1/C31H15NO3/c33-29-19-6-2-1-5-15(19)16-13-14-24-26-17(9-11-22(29)25(16)26)18-10-12-23-27(28(18)32-24)31(35)21-8-4-3-7-20(21)30(23)34/h1-14,32H |
Olive Green B - Physico-chemical Properties
| Molecular Formula | C31H15NO3 |
| Molar Mass | 449.46 |
| Density | 1.2566 (rough estimate) |
| Boling Point | 557.88°C (rough estimate) |
| Flash Point | 261.3°C |
| Water Solubility | 0.03ng/L at 20℃ |
| Vapor Presure | 9.27E-24mmHg at 25°C |
| pKa | -2.68±0.20(Predicted) |
| Refractive Index | 1.6310 (estimate) |
| Physical and Chemical Properties | Dark gray-green powder. Insoluble in water, ethanol, soluble in pyridine. In concentrated sulfuric acid showed bright yellow green, diluted olive green. It was dark blue in alkaline solution of sodium hydrosulfite and dark brown in acidic solution. |
Olive Green B - Reference Information
| LogP | 8.5 at 25℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | reduced olive green B is mainly used for dyeing cotton fiber and printing cotton cloth, with good levelness and affinity. It is also used for dyeing wool, silk, vitamin cotton, polyester cotton and other blended fabrics, but it is mostly used for color matching, such as combining with reduced blue RSN and reduced dark blue BO to form reduced dark blue VB; and GG with reduced card to dye grass green; and dyeing various colors of olive green with reduced yellow GCN and reduced gray BG. Mainly used for dyeing and printing of cotton fabrics, and can also be used for dyeing of vitamin/cotton blended fabrics |
| production method | benzoanthrone and 1-amino anthraquinone are used as raw materials, benzoanthone is first brominated, then condensed with 1-amino anthraquinone to obtain the product. The finished product is filtered, neutralized, washed, dried and crushed.. Add 300-400L of water, 50kg of hydrochloric acid (30%), 90kg of benzoin anthrone, 2kg of chlorobenzene and 35kg of bromine into the reaction pot, raise the temperature to 70-75 ℃, keep the temperature for 1.5h, then slowly add 10% sodium hypochlorite solution (folded 100% 130kg), add it for about 1.5-2h, and continue stirring for 1h. After reaching the end of the reaction, add sodium heavy sulfite solution to decompose unreacted bromine. Cooling, filtering, washing with water to neutral, drying, about 118kg of brominated benzenanthrone. 232.5kg of bromobenzanthrone, 160kg 1-amino anthraquinone, 50kg of sodium carbonate and 4.5kg of copper oxide are added into the condensation pot. After mixing for 1h, the temperature is slowly raised to 200 ℃, the temperature is kept for 2h, and the imine mixture is cooled and crushed when the end point is reached. Add 1000kg of butanol and 200kg of potassium hydroxide to the alkali melting pot, raise the temperature to 100-120 ℃, dissolve all, then reduce the temperature to 90 ℃, add 240kg of imine mixture, and then raise the temperature to 110 ℃ for 6 hours. Then the butanol is steamed out with steam, filtered, washed, ground and dried to obtain the finished product. |
Last Update：2024-04-09 02:00:05
