ChemicalBook
Chinese Japanese Germany Korea

Sulfanilic acid

Sulfanilic acid
Sulfanilic acid structure
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 Properties

Melting point:
>300 °C(lit.)
Density 
1.485
refractive index 
1.5500 (estimate)
storage temp. 
Store below +30°C.
solubility 
10g/l
form 
solid
pka
3.24(at 25℃)
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
Indirect Additives used in Food Contact Substances
SULFANILIC ACID
FDA 21 CFR
176.180
CAS DataBase Reference
121-57-3(CAS DataBase Reference)
FDA UNII
434Z8C2635
NIST Chemistry Reference
Benzenesulfonic acid, 4-amino-(121-57-3)
EPA Substance Registry System
Sulfanilic acid (121-57-3)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H314-H315-H317-H319
Precautionary statements  P280a-P321-P333+P313-P501a-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P261-P264-P272-P302+P352+P333+P313+P363-P305+P351+P338+P337+P313-P501
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
Toxicity LD50 orally in Rabbit: 12300 mg/kg
NFPA 704
0
2 0

Sulfanilic acid price More Price(29)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.22338 Sulfanilic acid for synthesis 121-57-3 100 g $23.12 2021-03-22 Buy
Sigma-Aldrich 251917 Sulfanilic acid ACS reagent, 99% 121-57-3 25g $26.3 2021-03-22 Buy
Sigma-Aldrich 39441 Nitrate Reagent B suitable for microbiology 121-57-3 100 mL $36 2021-03-22 Buy
Sigma-Aldrich 1.00684 Sulfanilic acid for elemental analysis 121-57-3 5 g $65.12 2021-03-22 Buy
Sigma-Aldrich 8.22338 Sulfanilic acid for synthesis 121-57-3 1 kg $67.43 2021-03-22 Buy

Sulfanilic acid Chemical Properties,Uses,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


Sulfanilic acid Suppliers

Global( 445)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20012 60
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 20914 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1365 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8909 55
Tianjin Zhongxin Chemtech Co., Ltd.
022-66880623
022-66880086 sales@tjzxchem.com CHINA 537 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29955 58
NINGBO INNO PHARMCHEM CO., LTD.
13867897135
sales@nbinno.com CHINA 925 58
Wuhan Boyuan Import & Export Co., LTD
+8618033787409
0311-89850048 Mike@whby-chem.com China 299 58

View Lastest Price from Sulfanilic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-11-08 Sulfanilic acid
121-57-3
US $10.00 / KG 500g 99% 2000MT/Month Wuhan wingroup Pharmaceutical Co., Ltd
2021-08-31 Sulfanilic acid
121-57-3
US $10.00 / KG 1KG 99.99% 200 tons/month Wuhan Monad Medicine Tech Co.,LTD
2021-07-13 Para Amino Phenyl Sulfonyl Acid/Sulfanilic acid
121-57-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

Sulfanilic acid Spectrum


121-57-3(Sulfanilic acid)Related Search:


Copyright 2017 © ChemicalBook. All rights reserved