Agrochemicals

Chloramine B

Chemical Name: Sodium N-chlorobenzenesulfonamide
Synonyms: Benzenesulfonchloramide sodium salt; Chloramine-B
CAS Number: 127-52-6
Molecular Formula: C₆H₅ClNNaO₂S
Molecular Weight: 213.62 g/mol

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Physical & Chemical Properties

Property	Specification
Appearance	White crystalline powder
Odor	Slight chlorine-like
Melting Point	180-185°C (dec.)
Solubility	Freely soluble in water (50 g/100 mL); soluble in ethanol
Active Chlorine	28-30% (typical)
pH (1% sol.)	8.5-10.5

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Hazard & Safety Information (GHS)

Danger Symbols:
☠️ Acute Toxicity (Category 4)
⚠️ Skin/Eye Irritant (Category 2)
⚡ Oxidizing Solid (Category 3)

Hazard Codes:
• H302: Harmful if swallowed
• H315: Causes skin irritation
• H319: Causes serious eye irritation
• H335: May cause respiratory irritation
• H272: May intensify fire (oxidizer)

Precautionary Measures:
• P280: Wear gloves/eye protection
• P305+P351+P338: Eye rinse procedure
• P310: Immediate medical attention if ingested

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Chemical Behavior

• Reactivity:

• Releases active chlorine in water
• Reacts violently with:
  • Strong acids → toxic chlorine gas
  • Reducing agents → exothermic reaction
    • Decomposition:

• 200°C → nitrogen oxides, sulfur oxides

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Applications

✔ Disinfection:

• Water treatment
• Surgical instrument sterilization
  ✔ Organic Synthesis:
• Mild chlorinating agent
• N-Chloro compounds precursor

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