Difference between revisions of "Paranitroaniline"
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Yellow needles or powder. Paranitroaniline is used in the colorimetric test for [[lignin|lignin]]. The intensity of the color is proportional to the concentration of lignin in the sample. | Yellow needles or powder. Paranitroaniline is used in the colorimetric test for [[lignin|lignin]]. The intensity of the color is proportional to the concentration of lignin in the sample. | ||
| − | + | * Wood pulp - brick red to dark orange color | |
| − | + | * Mechanical pulp - orange | |
| − | + | * Bleached sulfite pulp - yellow | |
| − | |||
| − | |||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
p-nitroaniline; 4-nitroaniline; 1-amino-4-nitrobenzene; para nitro anilina (Esp.) | p-nitroaniline; 4-nitroaniline; 1-amino-4-nitrobenzene; para nitro anilina (Esp.) | ||
| − | |||
[[[SliderGallery rightalign|paranitroaniline.jpg~Chemical structure]]] | [[[SliderGallery rightalign|paranitroaniline.jpg~Chemical structure]]] | ||
== Risks == | == Risks == | ||
| − | Highly toxic by skin absorption, ingestion and inhalation. | + | * Highly toxic by skin absorption, ingestion and inhalation. |
| − | + | * Combustible. Flash point = 199 C. Explosion risk. | |
| − | Combustible. Flash point = 199 C Explosion risk. Produces toxic fumes. | + | * Produces toxic fumes. |
| − | + | * ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC128350050&productDescription=2-NITROANILINE+98%25+5G&vendorId=VN00032119&countryCode=US&language=en SDS] | |
| − | ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC128350050&productDescription=2-NITROANILINE+98%25+5G&vendorId=VN00032119&countryCode=US&language=en SDS] | ||
== Physical and Chemical Properties == | == Physical and Chemical Properties == | ||
Soluble in ethanol, methanol, ether, benzene. Insoluble in water. | Soluble in ethanol, methanol, ether, benzene. Insoluble in water. | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 146-151 | + | | 146-151 C|- |
| − | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 1.437 | + | | 1.437 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 42: | Line 37: | ||
|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | 332 | + | | 332 C |
|} | |} | ||
Latest revision as of 14:25, 17 October 2022
Description
Yellow needles or powder. Paranitroaniline is used in the colorimetric test for Lignin. The intensity of the color is proportional to the concentration of lignin in the sample.
- Wood pulp - brick red to dark orange color
- Mechanical pulp - orange
- Bleached sulfite pulp - yellow
Synonyms and Related Terms
p-nitroaniline; 4-nitroaniline; 1-amino-4-nitrobenzene; para nitro anilina (Esp.)
Risks
- Highly toxic by skin absorption, ingestion and inhalation.
- Combustible. Flash point = 199 C. Explosion risk.
- Produces toxic fumes.
- ThermoFisher: SDS
Physical and Chemical Properties
Soluble in ethanol, methanol, ether, benzene. Insoluble in water.
| Composition | NO2C6H4NH2 | ||
|---|---|---|---|
| CAS | 100-01-6 | ||
| Melting Point | - | Density | 1.437 g/ml |
| Molecular Weight | 138.1 | ||
| Boiling Point | 332 C |
Resources and Citations
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
- The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 6681
- Book and Paper Group, Paper Conservation Catalog, AIC, 1984, 1989 Comment: Used in test for lignin