Sulfanilic acid
- Product Name
- Sulfanilic acid
- CAS No.
- 121-57-3
- Chemical Name
- Sulfanilic acid
- Synonyms
- faniL;NSC 7170;sulfanilic;4-SULFOANILINE;SUFANILIC ACID;Sulfanilsaeure;p-Sulfoaniline;SULFANILIC ACID;SulfonamineAcid;SULFANILLIC ACID
- CBNumber
- CB1489237
- Molecular Formula
- C6H7NO3S
- Formula Weight
- 173.19
- MOL File
- 121-57-3.mol
Sulfanilic acid Property
- Melting point:
- >300 °C(lit.)
- Density
- 1.485
- refractive index
- 1.5500 (estimate)
- storage temp.
- Store below +30°C.
- solubility
- 10g/l
- pka
- 3.24(at 25℃)
- form
- solid
- PH
- 2.5 (10g/l, H2O, 20℃)
- Water Solubility
- 0.1 g/100 mL (20 ºC)
- Merck
- 14,8926
- BRN
- 908765
- Stability:
- Stable. Incompatible with strong oxidizing agents.
- InChIKey
- HVBSAKJJOYLTQU-UHFFFAOYSA-N
- CAS DataBase Reference
- 121-57-3(CAS DataBase Reference)
- NIST Chemistry Reference
- Benzenesulfonic acid, 4-amino-(121-57-3)
- EPA Substance Registry System
- Sulfanilic acid (121-57-3)
Safety
- Hazard Codes
- C,Xi
- Risk Statements
- 36/38-43-34
- Safety Statements
- 26-36/37/39-45-37-24-36/37
- RIDADR
- UN 2790 8/PG 3
- WGK Germany
- 1
- RTECS
- WP3895500
- Autoignition Temperature
- >400 °C
- TSCA
- Yes
- HS Code
- 29214210
- Hazardous Substances Data
- 121-57-3(Hazardous Substances Data)
- Toxicity
- LD50 orally in Rabbit: 12300 mg/kg
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P321Specific treatment (see … on this label).
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- 8.22338
- Product name
- Sulfanilic acid
- Purity
- for synthesis
- Packaging
- 100 g
- Price
- $23.12
- Updated
- 2021/03/22
- Product number
- 251917
- Product name
- Sulfanilic acid
- Purity
- ACS reagent, 99%
- Packaging
- 25g
- Price
- $26.3
- Updated
- 2021/03/22
- Product number
- 39441
- Product name
- Nitrate Reagent B
- Purity
- suitable for microbiology
- Packaging
- 100 mL
- Price
- $36
- Updated
- 2021/03/22
- Product number
- 1.00684
- Product name
- Sulfanilic acid
- Purity
- for elemental analysis
- Packaging
- 5 g
- Price
- $65.12
- Updated
- 2021/03/22
- Product number
- 8.22338
- Product name
- Sulfanilic acid
- Purity
- for synthesis
- Packaging
- 1 kg
- Price
- $67.43
- Updated
- 2021/03/22
Sulfanilic acid Chemical Properties,Usage,Production
Description
Sulfanilic acid (4-amino benzene sulfonic acid ) is an off-white crystalline solid which finds application in quantitative analysis of nitrate and nitrite ions. The solid acid exists as a zwitterion, and has an unusually high melting point.
Chemical Properties
greyish-white crystals or powder
Uses
A toxic metabolite of Tartrazine (T007700). Used as Ehrlich’s reagent, for detecting of nitrites. Antibacterial.
Definition
ChEBI: An aminobenzenesulfonic acid that is aniline sulfonated at the para-position.
Application
As the compound readily form diazo compounds, it is used to make dyes and sulpha drugs . This property is also used for the quantitative analysis of nitrate and nitrite ions by diazonium coupling reaction with N-(1-Naphthyl) ethylene diamine , resulting in an azo dye, and the concentration of nitrate or nitrite ions were deduced from the color intensity of the resulting red solution by colorimetry.
It is also used as a standard in combustion analysis.
General Description
White powder with faint purple tinge. Grayish-white flat crystals. Becomes anhydrous at around 212°F. Low toxicity (used medicinally).
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Sulfanilic acid is an amino acid. Reacts weakly with both acids and bases.
Fire Hazard
Flash point data for Sulfanilic acid are not available, however Sulfanilic acid is probably combustible.
Chemical Synthesis
Sulfanilic acid can be produced by sulfonation of aniline.
Purification Methods
Crystallise the acid (as dihydrate) from boiling water. Dry it at 105o for 2-3hours, then over 90% H2SO4 in a vacuum desiccator. The S-benzylisothiuronium salt has m 187o (from aqueous EtOH). [Beilstein 14 IV 2655.]
Sulfanilic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Sulfanilic acid manufacturers
- Product
- Sulfanilic acid 121-57-3
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99.99%
- Supply Ability
- 200 tons/month
- Release date
- 2020-12-29
- Product
- Sulfanilic acid 121-57-3
- Price
- US $10.00/KG
- Min. Order
- 500g
- Purity
- 99%
- Supply Ability
- 2000MT/Month
- Release date
- 2021-07-06
- Product
- Para Amino Phenyl Sulfonyl Acid/Sulfanilic acid 121-57-3
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-10