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Sulfanilic acid

for elemental analysis

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Synonym(s):
Sulfanilic acid, 4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid
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 Information

危险化学品

Certificates of Analysis (COA)

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