21351-39-3

Basic information

• Product Name: uronium hydrogen sulphate
• Synonyms: uronium hydrogen sulphate;Urea, sulfate (1:1);1-AMINOMETHANAMIDEDIHYDROGENTETRAOXOSULFATE;Urea·sulfuric acid;Einecs 244-343-6;Enquik;Epa pesticide chemical code 128961;Monourea sulfuric acid adduct
• CAS NO: 21351-39-3
• Molecular Formula: 2CH₄N₂O*H₂O₄S
• Molecular Weight: 158.13374
• EINECS: 244-343-6
• Mol File: 21351-39-3.mol
• Article Data: 3

Chemical Properties

• Melting Point: 78.2 °C
• Boiling Point: 330 °C at 760 mmHg
• Flash Point: 254.8 °C
• Appearance: Clear odorless liquid
• Density: g/cm³
• Vapor Pressure: 3.39E-10mmHg at 25°C
• Water Solubility: 10g/L at 20℃
• CAS DataBase Reference: uronium hydrogen sulphate(CAS DataBase Reference)
• NIST Chemistry Reference: uronium hydrogen sulphate(21351-39-3)
• EPA Substance Registry System: uronium hydrogen sulphate(21351-39-3)

Safety Data

• RIDADR: UN1760
• Hazardous Substances Data: 21351-39-3(Hazardous Substances Data)

Usage

Agricultural Uses

uronium hydrogen sulphate is herbicide, plant growth regulator: Mainly used on cotton, wine grapes, apples, asparagus and rights-of-way. Not listed for use in EU countries . Registered for use in the U.S.

Trade name

ENQUIK?; N-TAC DESSICANT?; SUPERQUIK?; WILTHIN?

InChI:InChI=1/CH4N2O.H2O4S/c2-1(3)4;1-5(2,3)4/h(H4,2,3,4);(H2,1,2,3,4)/p-1

Upstream product

• 57-13-6 urea 
• 556-89-8 nitrourea 
• 686-68-0 N,N'-Dihydroxy-harnstoff 

Downstream Products

• 10049-04-4 chlorine dioxide 
• 7757-82-6 sodium sulfate 
• 7647-14-5 sodium chloride 
• 5329-14-6 aminosulfonic acid 
• 13766-30-8 imidosulfonic acid 
• 55920-00-8 [4,6-bis-(2-hydroxy-phenyl)-[1,3,5]triazin-2-yl]-urea 
• 205999-87-7 5-methoxycarbonyl-4-(4-methoxyphenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)-one 
• 25652-50-0 5-acetyl-6-methyl-4-phenyl-3,4-dihydropyrimidin-2(1H)-one 
• 205999-89-9 methyl 6-methyl-4-(4-nitrophenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate 
• 205999-88-8 5-methoxycarbonyl-6-methyl-4-(4-chlorophenyl)-3,4-dihydropyrimidin-2(1H)-one 
• 161374-07-8 ethyl 4-(4-methoxyphenyl)-6-methyl-1,2,3,4-tetrahydropyrimidin-2-one-5-carboxylate 
• 123237-03-6 ethyl 6-methyl-4-phenyl-3,4-dihydropyrimidin-2(1H)-one-5-carboxylate 
• 123371-45-9 ethyl 6-methyl-4-(4-nitrophenyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate 
• 123371-44-8 nifetepimine 

Relevant articles and documents

Method and device for preparing anhydrous peroxyacetic acid solution

The invention discloses a method and device for preparing an anhydrous peroxyacetic acid solution. The method comprises the following steps: reacting percarbamide and excessive acetic acid under the catalytic action of sulfuric acid to generate a peroxyacetic acid-water-urea mixture; distilling the mixture, absorbing moisture from the vapor by using sulfuric acid to obtain anhydrous peroxyacetic acid acetic acid vapor, and cooling the vapor to obtain an anhydrous peroxyacetic acid acetic acid solution; and reacting sulfuric acid with urea to generate a liquid urea sulfate hydrate which resides in the reaction kettle. The device comprises a reaction kettle (1), a rectifying drying tower (2), a cooling tower (3) and a vacuum device (4), wherein the top of the reaction kettle (1) is communicated with the bottom of the rectifying drying tower; the top of the rectifying drying tower is provided with a concentrated sulfuric acid feed port and a vapor outlet; the vapor outlet is communicated with the cooling tower; and the cooling tower is communicated with the vacuum device. Compared with the acetaldehyde oxidation process for preparing the anhydrous peroxyacetic acid solution, the method disclosed by the invention has the advantages of simple technical process, low equipment investment, high safety, environment friendliness and no pollution, and has important practical application value.