2,2'-Benzidinedisulfonic acid
- Product Name
- 2,2'-Benzidinedisulfonic acid
- CAS No.
- 117-61-3
- Chemical Name
- 2,2'-Benzidinedisulfonic acid
- Synonyms
- BDSA;BENZIDINE 2,2 DISULFONIC ACID;70.0%(T);2,2'-Benzidinedisulf;Benzidine-2,2'-disuL;2,2'-disulfobenzidine;2,2’-disulfo-benzidin;6,6'-bimetanilic acid;BENZIDINEDISULPHONICACID;BENZIDINE 2-2'DISUFONIC ACID
- CBNumber
- CB3732926
- Molecular Formula
- C12H12N2O6S2
- Formula Weight
- 344.36
- MOL File
- 117-61-3.mol
2,2'-Benzidinedisulfonic acid Property
- 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
- LogP
- 1.102 at 24℃
- 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
- Hazard Codes
- Xi
- Risk Statements
- 20/21/22-37/38-36-36/37/38
- Safety Statements
- 22-26-36-60-37
- RTECS
- DV5230000
- TSCA
- Yes
- HS Code
- 29215900
- Toxicity
- eye-rbt 500 mg/24H SEV 28ZPAK -,191,72
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- B0395
- Product name
- 2,2'-Benzidinedisulfonic Acid (contains 30% Water at maximum)
- Purity
- >70.0%(T)
- Packaging
- 25g
- Price
- $48
- Updated
- 2024/03/01
- Product number
- B0395
- Product name
- 2,2'-Benzidinedisulfonic Acid (contains 30% Water at maximum)
- Purity
- >70.0%(T)
- Packaging
- 500g
- Price
- $284
- Updated
- 2024/03/01
- Product number
- 041472
- Product name
- 4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate, cont. up to 30% water
- Packaging
- 25g
- Price
- $53.1
- Updated
- 2023/06/20
- Product number
- 041472
- Product name
- 4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate, cont. up to 30% water
- Packaging
- 100g
- Price
- $175
- Updated
- 2023/06/20
- Product number
- D416193
- Product name
- 4,4''-Diamino-[1,1''-biphenyl]-2,2''-disulfonicAcid
- Packaging
- 250mg
- Price
- $45
- Updated
- 2021/12/16
2,2'-Benzidinedisulfonic acid Chemical Properties,Usage,Production
Chemical Properties
PURPLE CRYSTALLINE POWDER
Uses
4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff. Benzidine-2,2' -disulfonic acid is used in the production of yellow and red azo dyes.
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.
2,2'-Benzidinedisulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,2'-Benzidinedisulfonic acid manufacturers
- Product
- Benzidine-2,2'-disulfonic acid 117-61-3
- Price
- US $0.00/kg
- Min. Order
- 20kg
- Purity
- 99%
- Supply Ability
- 20 tons
- Release date
- 2024-10-08
- Product
- 2,2'-Benzidinedisulfonic acid 117-61-3
- Price
- US $1.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- Customized
- Release date
- 2018-12-21