Molecular Formula | C6H3Cl2NO4S |
Molar Mass | 256.06 |
Density | 1.696 (estimate) |
Melting Point | 59-60 °C (lit.) |
Boling Point | 356°C (rough estimate) |
Flash Point | 169.1°C |
Solubility | soluble in Toluene |
Vapor Presure | 6.17E-05mmHg at 25°C |
Appearance | Crystalline Powder |
Color | Light brown |
BRN | 1978600 |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Sensitive | Moisture Sensitive |
Refractive Index | 1.6000 (estimate) |
MDL | MFCD00007440 |
Physical and Chemical Properties | Melting Point: 61 |
Use | Intermediate for the manufacture of disperse dyes |
Hazard Symbols | C - Corrosive |
Risk Codes | R34 - Causes burns R29 - Contact with water liberates toxic gas R14 - Reacts violently with water |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. 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.) S8 - Keep container dry. S30 - Never add water to this product. S22 - Do not breathe dust. |
UN IDs | UN 3261 8/PG 2 |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29049090 |
Hazard Note | Corrosive |
Hazard Class | 8 |
Packing Group | II |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | for the manufacture of disperse dye intermediates |
production method | is obtained by chlorosulfonation of O-nitrochlorobenzene. Chlorosulfonic acid was added into the chlorosulfonic pot, and molten O-nitrochlorobenzene was added in 1H below 60 ℃. Keep the temperature at 60 ℃ for 1H, warm up to 103-107 ℃ for 6h, cool to 40 ℃, cool with ice, and filter under 25 ℃. Water was washed to pH 5 to give 2-nitrochlorobenzene-4-sulfonyl chloride. |