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Halazone

Basic information Safety Supplier Related

Halazone Basic information

Product Name:
Halazone
Synonyms:
  • 4-(N,N-Dichlorosulfamoyl)benzoic acid
  • 4-(DICHLOROSULFAMOYL)BENZOIC ACID
  • HALAZONE
  • 4-dichlorosulphamoylbenzoic acid
  • P-(N,N-dichlorosulfamyl)benzoic acid*minimum 70%
  • 4-(N,N-Dichlorosulfamyl)BenzoicAcid70%
  • p-Sulfondichloraminobenzoic acid
  • PARA-SULPHONEDICHLORAMIDOBENZOICACID
CAS:
80-13-7
MF:
C7H5Cl2NO4S
MW:
270.09
EINECS:
201-253-1
Mol File:
80-13-7.mol
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Halazone Chemical Properties

Melting point:
195°C (rough estimate)
Boiling point:
437.0±47.0 °C(Predicted)
Density 
1.5426 (rough estimate)
refractive index 
1.6000 (estimate)
storage temp. 
Store at -20°C,unstable in solution, ready to use.
solubility 
Soluble in DMSO
form 
Solid
pka
3.29±0.10(Predicted)
color 
White to off-white
Merck 
14,4590
Stability:
Stable, but may be light sensitive. Incompatible with strong oxidizing agents.
CAS DataBase Reference
80-13-7(CAS DataBase Reference)
NIST Chemistry Reference
Benzoic acid, p-(dichlorosulfamoyl)-,(80-13-7)
EPA Substance Registry System
Halazone (80-13-7)
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Safety Information

RIDADR 
1479
WGK Germany 
3
RTECS 
DG8050000
HazardClass 
5.1
PackingGroup 
III

MSDS

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Halazone Usage And Synthesis

Chemical Properties

white powder

Originator

Clordiapenser,Molteni Farmaceutici SpA.

Uses

antiinfectant

Uses

Water disinfectant.

Manufacturing Process

20 kg p-aminosulfonyl benzoic acid was mixed with 400 L 0.5 N NaOCl. After an acidification with 100 L 1 N acetic acid, a precipitate dropped out. It was filtered off, washed and dried. The obtained 4-((dichloroamino)sulfonyl) benzoic acid had MP: 203°C.

Therapeutic Function

Antiseptic, Antiseptic

General Description

p-Dichlorosulfamoylbenzoic acid is a white, crystalline,photosensitive compound with a faint chlorine odor.Halazone is only slightly soluble in water at pH 7 but becomesvery soluble in alkaline solutions. The sodium salt ofhalazone is used to disinfect drinking water.

General Description

Fine white powder with an odor of chlorine.

Air & Water Reactions

Insoluble in water.

Fire Hazard

Flash point data for Halazone are not available, but Halazone is probably combustible.

Halazone Preparation Products And Raw materials

Raw materials

HalazoneSupplier

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