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| Metanilic acid Basic information |
| Metanilic acid Chemical Properties |
| Melting point | >300 °C (lit.) | | density | 1.69 | | refractive index | 1.5500 (estimate) | | storage temp. | Keep in dark place,Inert atmosphere,Room temperature | | solubility | ethanol: very slightly soluble(lit.) | | form | Powder | | pka | 3.73(at 25℃) | | color | White to grayish-beige | | Water Solubility | slightly soluble | | Merck | 14,5927 | | BRN | 473264 | | Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, acids. | | LogP | -2.77 at 21℃ | | CAS DataBase Reference | 121-47-1(CAS DataBase Reference) | | NIST Chemistry Reference | Metanilic acid(121-47-1) | | EPA Substance Registry System | Metanilic acid (121-47-1) |
| Hazard Codes | Xn | | Risk Statements | 20/21/22 | | Safety Statements | 23-28-28A-25 | | RIDADR | 3261 | | WGK Germany | 1 | | RTECS | OY2300000 | | TSCA | Yes | | HazardClass | IRRITANT | | HS Code | 29214200 |
| Metanilic acid Usage And Synthesis |
| Chemical Properties | white powder | | Uses | 3-Aminobenzenesulfonic acid was used in the synthesis of cytocompatible sulfonated polyanilines. It was used in fabrication of novel glucose biosensor having large active surface area and excellent conductivity. | | Uses | Metanilic acid was used in the synthesis of cytocompatible sulfonated polyanilines. It was used in fabrication of novel glucose biosensor having large active surface area and excellent conductivity. It undergoes microbial desulfonation to 3-aminophenol by Pseudomonas sp. strain S-313. It can be used to produce CN3O6(1-)*Cs(1+) and dicesium salt of N-nitrometanilic acid at temperature of 25°C. | | General Description | White powder. Small colorless needles; toxic. | | Air & Water Reactions | Water insoluble [Hawley]. | | Reactivity Profile | Metanilic acid is an amino acid. Reacts weakly with both acids and bases. | | Hazard | See aniline. | | Fire Hazard | Flash point data for Metanilic acid are not available, however Metanilic acid is probably combustible. | | Flammability and Explosibility | Nonflammable | | Purification Methods | Crystallise the acid from water (as the hydrate), under CO2 in a semi-darkened room. The solution is photosensitive. Dry it over 90% H2SO4 in a vacuum desiccator. [Beilstein 14 H 688, 14 IV 2640.] |
| Metanilic acid Preparation Products And Raw materials |
| Raw materials | Hydrochloric acid-->Sulfuric acid-->Sodium carbonate-->FUMING SULFURIC ACID-->Iron-->Nitrobenzene-->Nicotinic acid-->Congo red paper-->Sulfur trioxide-->Sodium 3-nitrobenzenesulphonate-->Benzenesulfonic acid sodium salt-->METANILIC ACID SODIUM SALT | | Preparation Products | 3-Aminophenol-->1-Amino anthraquinone-->3-ACETYLAMINO-BENZENESULFONYL CHLORIDE-->REACTIVE BLUE 4-->ACID BLUE 113-->ACID BLUE 120-->2-Amino-1,4-benzenedisulfonic acid-->Benzoic acid, 5-4-4-4-(4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino-2-sulfophenylamino-6-(phenylamino)-1,3,5-triazin-2-ylaminophenylazo-2-hydroxy-, trisodium salt-->cleaner LS-->Reactive Blue 198-->Reactive Orange 5-->Mordant Brown 33-->SIRIUS YELLOW GC-->disodium 4-[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulphonate-->REACTIVE BLUE 5-->Direct Blue 106-->Acid Orange 116-->Reactive Brilliant Orange K-R-->Tracid Rubine 5bl-->Reactive Blue 49-->Reactive Brilliant Orange K-7R-->METANIL YELLOW-->tetrasodium [mu-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulphophenyl)azo]naphthalene-2-sulphonato]](8-)]]dicuprate(4-)-->Reactive Orange 2-->Reactive Navy Blue Ker-->REACTIVE RED 198-->tetraammonium [mu-[[5,5'-[carbonylbis[imino(2-hydroxy-5-sulpho-p-phenylene)azo]]bis[6-hydroxynaphthalene-2-sulphonato]](8-)]]dicuprate(4-) |
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