Sodium 3-nitrobenzenesulphonate CAS 127-68-4 Information
| CAS |
127-68-4 |
| Molecular formula |
C6H4NNaO5S |
| Molecular weight |
225.15 |
| EIENCS |
204-857-3 |
| Form |
Crystalline Powder |
| Melting point |
350 °C |
| boling point |
217.5°C |
| Density |
0.45 g/cm3 (20 °C) |
| Solubility |
water: soluble50mg/mL, clear to slightly hazy, faintly yellow to yellow |
| PKA |
/ |
| Color |
Light yellow |
| Storage temp |
|
What is Sodium 3-nitrobenzenesulphonate CAS 127-68-4?
Mainstream process: Sulfonation of nitrobenzene - neutralization method
Sulfonation reaction: Nitrobenzene reacts with fuming sulfuric acid (containing 20% SO₃) at 0-5°C, then the temperature is raised to 100°C and held for 2 hours.
Salting out and purification: The reaction solution is diluted with ice water and then salted out with table salt. After filtration, m-nitrobenzenesulfonic acid is obtained.
Neutralization crystallization: Sulfonic acid is neutralized with soda ash, decolorized with activated carbon, and then cooled and crystallized to obtain the finished product.
Raw material consumption: nitrobenzene (390 kg/t), sulfuric acid (550 kg/t), fuming sulfuric acid (410 kg/t).
Sodium 3-nitrobenzenesulphonate CAS 127-68-4 Use
Dye industry
Anti-dye and protective agents: Used in reductive/sulfur dye printing to prevent reductive substances from damaging the dye structure and protect the stability of color light.
Dye intermediates: Synthesis of vanillin and other dyes.
Industrial additives
Electroplating nickel remover: Dissolves nickel layers and is used for the repair of precision parts;
Ship anti-rust agent: Neutralizes the reducing substances on the metal surface and delays corrosion.
Organic synthesis
Mild oxidant: Catalyzes oxidation reactions in drug synthesis;
Catalyst: Promotes the synthesis of carboxylic acid compounds.
Sodium 3-nitrobenzenesulphonate CAS 127-68-4 safety
Health hazard:
It irritates the eyes, skin and respiratory tract. Contact may cause redness, swelling and pain.
Acute toxicity: Oral LD₅₀ > 2000 mg/kg in rats (low acute toxicity).
Environmental risk:
Toxic to aquatic organisms (WGK Germany Grade 1), entry into water bodies needs to be prevented.
Protective measures:
Wear a gas mask, chemical goggles and impermeable gloves when operating.
Leakage treatment: Adsorb with sand or rinse with water to avoid dust.
Deshangchemical Info
- ● Comgpany name : Shandong Deshang Chemicals Co., Ltd.
- ● Main products : Treatments, sedimentation agents, flame retardants, catalysts, matte pigments, talcum powder, PVC additives, antifreeze agents, cellulose, cleaning agents, coconut oil, hydroxyethyl, cosmetics, matte agents, betaine, disinfectants, photosensitizers, humidifying agents, blue pigments, curing agents, potassium formate, sodium formate, cyclohexanol, preservatives, grinding aids.
- ● Date of establishment : 2022-03-11
- ● Total Employees : 200+
- ● Registered capital: 10000000 RMB
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