Sulfuricacid,monoanhydridewithnitrousacid
Nitrosyl sulfuric acid;Nitrosyl sulfate
CAS: 7782-78-7
Molecular Formula: HNO5S
Sulfuricacid,monoanhydridewithnitrousacid - Names and Identifiers
| Name | Nitrosyl sulfuric acid Nitrosyl sulfate |
| Synonyms | Nitrosyl sulfate NITROSYSULFURIC ACID oxo(sulfo)azane oxide Nitrosylsulfuric acid Nitrosyl sulfuric acid nitrosylsulfuric acid solution hydroxy(nitrosooxy)sulfane dioxide NITROSYLSULFURIC ACID CRYSTALLIZED sulfane, hydroxy(nitrosooxy)-, dioxide Sulfuricacid,monoanhydridewithnitrousacid |
| CAS | 7782-78-7 |
| EINECS | 231-964-2 |
| InChI | InChI=1/HNO5S/c2-1(3)7(4,5)6/h(H,4,5,6) |
| InChIKey | VQTGUFBGYOIUFS-UHFFFAOYSA-N |
Sulfuricacid,monoanhydridewithnitrousacid - Physico-chemical Properties
| Molecular Formula | HNO5S |
| Molar Mass | 127.07 |
| Density | 1.612g/mLat 25°C |
| Melting Point | -10 °C |
| Boling Point | 333℃ at 101.33kPa |
| Water Solubility | decomposes |
| Vapor Presure | 2.6-30Pa at 20-50℃ |
| Appearance | Viscous Liquid |
| Color | Clear to milky yellow to greenish |
| Merck | 13,6682 |
| pKa | -7.51±0.18(Predicted) |
| Storage Condition | Refrigerator (+4°C) |
| Refractive Index | 1.528 |
| Use | Mainly used to replace sodium nitrite in the diazo reaction of disperse dyes, thereby reducing costs and improving product quality |
Sulfuricacid,monoanhydridewithnitrousacid - Risk and Safety
| Risk Codes | R8 - Contact with combustible material may cause fire R14 - Reacts violently with water R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R35 - Causes severe burns R34 - Causes burns |
| Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S27 - Take off immediately all contaminated clothing. |
| UN IDs | UN 3264 8/PG 2 |
| WGK Germany | 3 |
| HS Code | 28111980 |
| Hazard Class | 8 |
| Packing Group | II |
Sulfuricacid,monoanhydridewithnitrousacid - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | is mainly used to replace sodium nitrite in the diazo reaction of disperse dyes, thereby reducing costs, improve product quality |
| production method | 1. Nitrous acid sulfuric acid can be generated by reacting fuming nitric acid with sulfur dioxide. A flask with a gas introduction tube and a gas discharge tube was used as the reactor, and the gas introduction tube was inserted close to the bottom of the flask. Fuming nitric acid (relative density of 1 μ60) was charged into the flask and the flask was cooled with an ice-salt bath. The thoroughly dried SO2 gas is slowly introduced, and heat is released during the reaction. Care should be taken not to make the temperature of the reaction mixture exceed 5 °c. The passage of SO2 was continued until the reaction mixture became a thick paste, mainly nitrosyl sulfuric acid and a small amount of unreacted liquid nitric acid. The crystals were filtered with suction using a glass sand core funnel and washed with glacial acetic acid and ccl4. Finally, the product was placed in a desiccator and dried on P2O5. |
Last Update：2024-04-10 22:29:15
Supplier List
Spot supply
Product Name: Nitrosyl sulfuric acid;Nitrosyl sulfate Request for quotationCAS: 7782-78-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Nitrosyl sulfuric acid;Nitrosyl sulfate Request for quotationCAS: 7782-78-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Nitrosyl sulfuric acid;Nitrosyl sulfate Request for quotation
CAS: 7782-78-7
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 7782-78-7
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Spot supply
Product Name: Nitrosyl sulfuric acid;Nitrosyl sulfate Request for quotationCAS: 7782-78-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Nitrosyl sulfuric acid;Nitrosyl sulfate Request for quotationCAS: 7782-78-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Nitrosyl sulfuric acid;Nitrosyl sulfate Request for quotation
CAS: 7782-78-7
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 7782-78-7
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
View History