Acid Green 25 (C.I.)
Acid Green 25
CAS: 4403-90-1
Molecular Formula: C28H23N2NaO8S2
Acid Green 25 (C.I.) - Names and Identifiers
| Name | Acid Green 25 |
| Synonyms | C.I. 61570 C.I. 61 570 Acid Green 25 Acid Green 25 c.i.acidgreen25 Alizarin green, AR C.I. Acid Green 25 C.I. 61 570 [Czech] Acid Green 25 (C.I.) Alizarin cyanin green F Alizarin Cyanin Green G Alizarin Cyanine Green F acid green 25 (C.I. 61570) Alizarin Cyanone Green B Extra zelenalizarinovabrilantnig-extra C.I. Acid Green 25 disodium salt disodium 2,2-(anthraquinone-1,4-diimino)bis(5-methylsulphonate) disodium 2,2-(9,10-dioxoanthracene-1,4-diyldiimino)bis(5-methylsulphonate) disodium 2,2'-[(9,10-dioxo-9,10-dihydroanthracene-1,4-diyl)diimino]bis(5-methylbenzenesulfonate) Disodiumsaltof2,2'-[9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis-[5-methylbenzenesulfonicacid] |
| CAS | 4403-90-1 |
| EINECS | 224-546-6 |
| InChI | InChI=1/C28H22N2O8S2.2Na/c1-15-7-9-19(23(13-15)39(33,34)35)29-21-11-12-22(30-20-10-8-16(2)14-24(20)40(36,37)38)26-25(21)27(31)17-5-3-4-6-18(17)28(26)32;;/h3-14,29-30H,1-2H3,(H,33,34,35)(H,36,37,38);;/q;2*+1/p-2 |
| InChIKey | FPAYXBWMYIMERV-UHFFFAOYSA-L |
Acid Green 25 (C.I.) - Physico-chemical Properties
| Molecular Formula | C28H23N2NaO8S2 |
| Molar Mass | 602.61 |
| Melting Point | 235-238°C(lit.) |
| Water Solubility | 36 g/L (20 ºC) |
| Appearance | Green powder |
| Color | Bluish green powder |
| Merck | 14,252 |
| Storage Condition | Room Temprature |
| MDL | MFCD00001193 |
| Physical and Chemical Properties | Melting point 340°C water-soluble 36g/L (20°C) |
| Use | Used for biological and anodized aluminum coloring. |
Acid Green 25 (C.I.) - Risk and Safety
| Hazard Symbols | N - Dangerous for the environment |
| Risk Codes | R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36 - Irritating to the eyes |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 2 |
| RTECS | DB5044000 |
| HS Code | 32041200 |
| Toxicity | LD50 orl-rat: >10 g/kg GTPZAB 28(7),53,84 |
Acid Green 25 (C.I.) - Introduction
Soluble in o-chlorophenol, slightly soluble in acetone, ethanol and pyridine, insoluble in chloroform and toluene. It is dark blue in concentrated sulfuric acid, and emerald blue after dilution. The pH value of 1% aqueous solution is 7.15.
Last Update：2022-10-16 17:25:14
Acid Green 25 (C.I.) - Wavelength
λmax 608 nm，λmax 642 nm (2nd)
Last Update：2023-08-16 21:32:38
Acid Green 25 (C.I.) - Reference Information
| color index | 61570 |
| LogP | -1.966 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | acid green P-3B is mainly used for dyeing wool, silk, nylon and their blended fabrics, and can also be used for coloring leather, paper, cosmetics, soap, wood products, biological products and aluminum oxide. Mainly used for dyeing wool textiles and silk biological dyeing. |
| production method | using colorless 1,4-dihydroxyanthraquinone (Leuco-quinizarin) and p-toluidine as raw materials, 1, 4-dihydroxyanthraquinone and p-toluidine are condensed in the presence of boric acid and zinc powder, then sulfonated with fuming sulfuric acid and neutralized to obtain the product. The finished product is salted out, filtered, dried and crushed. Or 1,4-dichloroanthraquinone, p-toluidine as raw materials, 1,4-dichloroanthraquinone and p-toluidine condensation can also be prepared.. |
| category | toxic substances |
| toxicity classification | low toxicity |
| acute toxicity | oral-rat LD50: >10000 mg/kg; Oral-mouse LD50: 6700 mg/kg |
| stimulation data | skin-rabbit 500 mg/24 hours mild; Eye-rabbit 500 mg/24 hours severe |
| flammability hazard characteristics | warehouse ventilation and low temperature drying; separate from food raw materials to store dry powder, foam, sand, carbon dioxide, mist water and combustible; combustion produces toxic nitrogen oxides, sulfur oxides and sodium oxide smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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