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HomeProduct name list2,2'-Benzidinedisulfonic acid

2,2'-Benzidinedisulfonic acid

  • CAS NO.:117-61-3
  • Empirical Formula: C12H12N2O6S2
  • Molecular Weight: 344.36
  • MDL number: MFCD00041885
  • EINECS: 204-200-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-18 14:08:52
2,2'-Benzidinedisulfonic acid Structural

What is 2,2'-Benzidinedisulfonic acid?

Chemical properties

PURPLE CRYSTALLINE POWDER

The Uses of 2,2'-Benzidinedisulfonic acid

4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff.

Production Methods

2,2'-Benzidinedisulfonic acid is made from the potassium or sodium salt of 3- nitrobenzenesulfonic acid by a gradual reduction using zinc dust and sodium hydroxide solution in a dilute aqueous solution. The product is subsequently rearranged using hydrochloric acid or dilute sulfuric acid. Electrochemical or catalytic reductions are also possible.

General Description

Leaflets or prisms or light purple powder.

Air & Water Reactions

Insoluble in water.

Fire Hazard

Flash point data for 2,2'-Benzidinedisulfonic acid are not available; however, 2,2'-Benzidinedisulfonic acid is probably combustible.

Flammability and Explosibility

Non flammable

Safety Profile

A severe eye irritant. When heated to decomposition it emitsvery toxic fumes of SOx and NOx.

Properties of 2,2'-Benzidinedisulfonic acid

Melting point: 175°C
Boiling point: 638.25℃[at 101 325 Pa]
Density  1.5417 (rough estimate)
vapor pressure  0Pa at 25℃
refractive index  1.6510 (estimate)
storage temp.  Keep in dark place,Inert atmosphere,Room temperature
form  Powder
pka -1.85±0.50(Predicted)
color  Dark purple
Water Solubility  <0.1 g/100 mL at 20 ºC
CAS DataBase Reference 117-61-3(CAS DataBase Reference)
EPA Substance Registry System [1,1'-Biphenyl]-2,2'-disulfonic acid, 4,4'-diamino- (117-61-3)

Safety information for 2,2'-Benzidinedisulfonic acid

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P270:Do not eat, drink or smoke when using this product.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.
P501:Dispose of contents/container to..…

Computed Descriptors for 2,2'-Benzidinedisulfonic acid

2,2'-Benzidinedisulfonic acid manufacturer

Jagson Colorchem Limited

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Bodal Chemicals Ltd

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Phone:+91-9825034567
Whatsapp: +91 9825034567
product: 117-61-3 4,4'-Benzidine-2,2'-disulfonic acid 98%
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Dhanlaxmi Industries

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Phone:+91-9825033738
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product: 117-61-3 98%
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DL INTRACHEM

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Phone:+91-9099014678
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Jackson Chemical Industries

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Phone:+91-9824153451
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Gopinath Chemtech Limited

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Phone:+91-7926582412
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product: 117-61-3 4,4'-Benzidine-2,2'-disulfonic acid 99%
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Apurva Chemicals

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Santel Industries

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Phone:+917926401417
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product: 4,4'-Benzidine-2,2'-disulfonic acid 98%
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