Nitrosylsulfuric acid

Base Information

• Chemical Name: Nitrosylsulfuric acid
• CAS No.: 7782-78-7
• Deprecated CAS: 26192-61-0
• Molecular Formula: HNO5S
• Molecular Weight: 127.078
• Hs Code.: Oral rat LD50: 2140 mg/kg
• European Community (EC) Number: 231-964-2
• UN Number: 2308
• UNII: 40K942UPM8
• DSSTox Substance ID: DTXSID30889380
• Nikkaji Number: J96.480H
• Wikipedia: Nitrosylsulfuric acid,Nitrosylsulfuric_acid
• Wikidata: Q419812
• Mol file: 7782-78-7.mol

Synonyms:Nitrosylsulfuric acid;7782-78-7;NITROSOSULFURIC ACID;Nitrosylsulphuric acid;chamber crystals;nitrosyl sulfate;nitroso hydrogen sulfate;nitrosulfonic acid;nitrosyl sulfuric acid;nitrosyl hydrogen sulfate;nitro acid sulfite;Sulfuric acid, monoanhydride with nitrous acid;Nitroxylsulfuric acid;UNII-40K942UPM8;Sulfuric acid monoanhydride with nitrous acid;40K942UPM8;EINECS 231-964-2;UN2308;EC 231-964-2;Sulfuric acid, anhydride with nitrous acid (1:1);Nitrose;Nitrosyl sulphate;Nitrosylschwefelsaure;nitrososulphuric acid;Lead chamber crystals;nitrosyl-sulfuric acid;nitrosyl-sulphuric acid;Nitrosyl sulphuric acid;HNO5S;nitrous sulfuric anhydride;Nitrosyl hydrogen sulphate;H-N-O5-S;Nitrosyl Sulfate, Sulfuric Acid;DTXSID30889380;Nitrosyl sulfate ((NO)H(SO4));NITROSYLSULFURIC ACID [MI];NA2308;UN3456;AKOS025310763;FT-0693402;Nitrosylsulfuric acid [UN2308] [Corrosive];Nitrosylsulfuric acid [UN2308] [Corrosive];Q419812

Chemical Property of Nitrosylsulfuric acid

Chemical Property:

• Appearance/Colour: Yellowish viscous liquid
• Vapor Pressure: 2.6-30Pa at 20-50℃
• Melting Point: -10 °C
• Boiling Point: 333℃ at 101.33kPa
• PKA: -7.51±0.18(Predicted)
• PSA: 101.41000
• Density: 2.18 g/cm³
• LogP: 0.56800
• Storage Temp.: Refrigerator (+4°C)
• Water Solubility.: decomposes
• XLogP3: -0.9
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 1
• Exact Mass: 126.95754331
• Heavy Atom Count: 7
• Complexity: 136
• Transport DOT Label: Corrosive

Purity/Quality:

40% ^*data from raw suppliers

Nitrosylsulfuric acid solution 40?wt. % in sulfuric acid ^*data from reagent suppliers

Safty Information:

• Pictogram(s): O,T
• Hazard Codes: O,T
• Statements: 8-14-23/24/25-35-34
• Safety Statements: 17-26-36/37/39-45-27

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Acids, Inorganic
• Canonical SMILES: N(=O)OS(=O)(=O)O
• Physical properties: Nitrosylsulfuric acid is produced as an intermediate in the manufacture of sulfuric acid using the lead chamber process by the reaction of sulfur dioxide, nitrogen dioxide, oxygen, and water. Nitrosylsulfuric acid also is made from absorption of nitrogen oxides (NOx) in oleum (fuming sulfuric acid): N2O3 + 2H2SO4 → 2ONSO4 + H2O or by the reaction of nitrosyl chloride with concentrated sulfuric acid: ClNO + H2SO4 → ONSO4 + HCl Another method of preparation involves the reaction of nitrosyl bromide with silver bisulfate: AgHSO4 + BrNO → ONHSO4 + AgBr In making disperse azo dyes, nitrosylsulfuric acid is produced by the addition of sodium nitrite, NaNO2, to concentrated sulfuric acid (1g NaNO2 per 13 g H2SO4).
• Uses: Nitrosylsulfuric acid (40?wt. % in sulfuric acid) is a reagent used for the preparation of new heterocyclic disperse azo dyes. For bleaching cereal milling products. Nitrosylsulfuric acid is used for diazotisation, nitrosation, oxidation and oximation reactions. Product Data Sheet

Technology Process of Nitrosylsulfuric acid

There total 7 articles about Nitrosylsulfuric acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 78.0%

dinitrogen trioxide (10544-73-7,96607-26-0) + sulfuric acid (7664-93-9) → nitrosylsulfuric acid (7782-78-7)

Guidance literature:

In acetonitrile;

DOI:10.1002/ejic.201701091

Reference yield:

sulfuric acid (7664-93-9) + sodium nitrite (7632-00-0) → nitrosylsulfuric acid (7782-78-7)

Guidance literature:

at 20 - 70 ℃; for 0.333333h;

Reference yield:

sulfuric acid (7664-93-9) + 2,6-dichloro-4-(trifluoromethyl)aniline (24279-39-8) → nitrosylsulfuric acid (7782-78-7) + 2-bromo-1,3-dichloro-5-(trifluoromethyl)benzene (118754-53-3)

Guidance literature:

With hydrogen bromide; copper(I) bromide; sodium nitrite; In acetic acid;

upstream raw materials:

sulfuric acid

sodium nitrite

2,6-dichloro-4-(trifluoromethyl)aniline

nitrosylchloride

Downstream raw materials:

nitrogen(II) oxide

2,6-Dimethoxy-4-trifluoromethyl-benzoic acid

3-({4-[(2,6-dichloro-4-nitrophenyl)azo]-3-methylphenyl}ethylamino)propiononitrile

C₁₉H₂₁ClN₆O₆

Refernces

• 1、 Deshmukh, Mininath S.,Sekar, Nagaiyan. "Chemiluminescence properties of isoluminol related mono azo disperse dyes: Experimental and DFT based approach to photophysical properties". . p. 127 - 134. Retrieved 2015.
• 2、 Harisha,Keshavayya, Jathi,Prasanna,Joy Hoskeri. "Synthesis, characterization, pharmacological evaluation and molecular docking studies of benzothiazole azo derivatives". . . Retrieved 2020/06/08.
• 3、 Rosadiuk, Kristopher A.,Bohle, D. Scott. "Anhydrous Dinitrogen Trioxide Solutions for Br?nsted Acid Free Nitrous Acid Chemistry". . p. 5461 - 5465. Retrieved 2017/12/26.