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CAS

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80-13-7

Halazone, also known as p-Dichlorosulfamoylbenzoic acid, is a white, crystalline, photosensitive compound with a faint chlorine odor. It is only slightly soluble in water at pH 7 but becomes very soluble in alkaline solutions. The sodium salt of Halazone is commonly used for disinfecting drinking water.

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  • 80-13-7 Structure

  • Basic information

    1. Product Name: Halazone
    2. Synonyms: P-(N,N-DICHLOROSULFAMYL)BENZOIC ACID;P-(SULFODICHLORAMIDO)BENZOIC ACID;PANTOCID;P-(DICHLOROSULFAMOYL)BENZOIC ACID;P-CARBOXYBENZENESULFONDICHLORAMIDE;4-((dichloroamino)sulfonyl)-benzoicaci;4-[(dichloroamino)sulfonyl]-benzoicaci;Benzoic acid, 4-[(dichloroamino)sulfonyl]-
    3. CAS NO:80-13-7
    4. Molecular Formula: C7H5Cl2NO4S
    5. Molecular Weight: 270.09
    6. EINECS: 201-253-1
    7. Product Categories: N/A
    8. Mol File: 80-13-7.mol

  • Chemical Properties

    1. Melting Point: 195°C (rough estimate)
    2. Boiling Point: 437 °C at 760 mmHg
    3. Flash Point: 218.1 °C
    4. Appearance: white powder
    5. Density: 1.5426 (rough estimate)
    6. Refractive Index: 1.6000 (estimate)
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. PKA: 3.29±0.10(Predicted)
    10. Stability: Stable, but may be light sensitive. Incompatible with strong oxidizing agents.
    11. Merck: 14,4590
    12. CAS DataBase Reference: Halazone(CAS DataBase Reference)
    13. NIST Chemistry Reference: Halazone(80-13-7)
    14. EPA Substance Registry System: Halazone(80-13-7)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. RIDADR: 1479
    5. WGK Germany: 3
    6. RTECS: DG8050000
    7. HazardClass: 5.1
    8. PackingGroup: III
    9. Hazardous Substances Data: 80-13-7(Hazardous Substances Data)

80-13-7 Usage

Uses

Used in Water Treatment Industry:
Halazone is used as a water disinfectant for the purpose of purifying drinking water. Its effectiveness in killing bacteria, viruses, and other pathogens ensures the safety and quality of the water supply.

Originator

Clordiapenser,Molteni Farmaceutici SpA.

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

Air & Water Reactions

Insoluble in water.

Fire Hazard

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

Check Digit Verification of cas no

The CAS Registry Mumber 80-13-7 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80-13:
(4*8)+(3*0)+(2*1)+(1*3)=37
37 % 10 = 7
So 80-13-7 is a valid CAS Registry Number.
InChI:InChI=1/C7H5Cl2NO4S/c8-10(9)15(13,14)6-3-1-5(2-4-6)7(11)12/h1-4H,(H,11,12)

80-13-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name Halazone

1.2 Other means of identification

Product number -
Other names Pantocide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:80-13-7 SDS

80-13-7Relevant articles and documents

An Improved Procedure for the Synthesis of p-(Dichlorosulfamoyl)benzoic Acid (Halazone)

Saljoughian, M.,Sadeghi, M. T.

, p. 553 - 556 (1986)

Oxidation of Dichloramine-T with KMnO4 in mild alkaline medium affords N,N-dichlorosulfamoylbenzoic acid (Halazone) in high yield with 18-20percent chlorine content. - Keywords: Halazone; Synthesis; Disinfectant action

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