| Customization: | Available |
|---|---|
| Powder: | Yes |
| Customized: | Customized |
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4-nitrobenzoic acid is a nitrobenzoic acid having the nitro group at the 4-position. It is functionally related to a benzoic acid. It is a conjugate acid of a 4-nitrobenzoate.
It is obtained from the oxidation of p-nitrotoluene, and the oxidizing agent can be , air, manganese ore powder, nitric acid and so on. Take p-nitrotoluene as raw material, in the presence of sulfuric acid, oxidizing reaction with at 55ºC, generating p-nitrobenzoic acid. The reaction solution is filtered, centrifuged and dehydrated, washed and dried, and the finished product is obtained. In addition, p-nitrobenzoic acid is easily obtained by oxidizing 1-p-nitrophenyl-2-amino-1,3-propanediol with nitric acid using the dextrose from chloramphenicol production.
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Items
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Specifications
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Results
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Appearance
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Yellow powder |
Confirm
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Odor& Taste
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Characteristic
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Confirm
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Loss on drying
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≤8.0%
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2.8%
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Assay(HPLC)
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99.0% min
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99.2%
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Ash
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≤1.0%
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0.35%
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Heavy Metal
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≤10 ppm
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Confirm
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As
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≤1.0ppm
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Confirm
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Pb
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≤1.0ppm
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Confirm
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Cd
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≤1.0ppm
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Confirm
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Hg
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≤0.1ppm
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Confirm
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Total plate count
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≤1000 cfu/g
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Confirms
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Yeast&Mold
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≤100 cfu/g
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Confirms
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E.Coli
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Negative
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Negative
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Salmonella
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Negative
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Negative
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Staphylococcus aureus
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Negative
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Negative
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