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Supelco

Sulfanilic acid

for elemental analysis

Synonym(s):

Sulfanilic acid, 4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid

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About This Item

Empirical Formula (Hill Notation):
C6H7NO3S
CAS Number:
121-57-3
Molecular Weight:
173.19
MDL number:
MFCD00007886
UNSPSC Code:
12352106
EC Index Number:
204-482-5
NACRES:
NA.21

Quality Level

100

form

solid

autoignition temp.

>400 °C

potency

12300 mg/kg LD50, oral (Rat)

pH

2.5 (20 °C, 10 g/L in H2O)

mp

288 °C (decomposes)

solubility

10 g/L

density

1.485 g/cm3 at 25 °C

bulk density

620 kg/m3

storage temp.

15-25°C

InChI

1S/C6H7NO3S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)

InChI key

HVBSAKJJOYLTQU-UHFFFAOYSA-N

General description

for elemental analysis

Application

Sulfanilic acid standard for elemental analysis for analysis. CAS 121-57-3, EC Number 204-482-5, chemical formula NH₂C₆H₄SO₃H.

Analysis Note

Identity (IR-spectrum)conformsC content (mean value fivefold determination)41.3 - 41.8 %H content (mean value fivefold determination)3.9 - 4.3 %N-content (mean value fivefold determination)7.7 - 8.3 %O content (mean value fivefold determination)27.5 - 28.5 %S content (mean value fivefold determination)18.2 - 18.8 %Water (according to Karl Fischer)≤ 0.5 %Suitable for determination of C,H,N,O,S

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315 - H317 - H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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