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Description
Catalogue Number	100686
Synonyms	4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid
Description	Sulfanilic acid

Physicochemical Information
Density	1.4862 g/cm3 (20 °C)
Ignition temperature	>400 °C
Melting Point	288 °C decomposes
pH value	2.5 (10 g/l, H₂O, 20 °C)
Bulk density	620 kg/m3
Solubility	10 g/l

Toxicological Information
LD 50 oral	LD50 Rat 12300 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H315: Causes skin irritation. H317: May cause an allergic skin reaction. H319: Causes serious eye irritation.
Precautionary Statement(s)	P261: Avoid breathing dust. P264: Wash skin thoroughly after handling. P272: Contaminated work clothing should not be allowed out of the workplace. P280: Wear protective gloves/ eye protection/ face protection. P302 + P352: IF ON SKIN: Wash with plenty of water. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word	Warning
Storage class	10 – 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Safety Information
Categories of danger	irritant, sensitizing

Storage and Shipping Information
Storage	Store at +15°C to +25°C.

Specifications
Assay (acidimetric)	99.0 – 102.0 %
Identity (IR-spectrum)	passes test
Matter insoluble in sodium carbonate solution	≤ 0.01 %
Chloride (Cl)	≤ 0.002 %
Nitrite (NO₂)	≤ 0.5 ppm
Sulfate (SO₄)	≤ 0.01 %
Heavy metals (as Pb)	≤ 0.001 %
Sulfated ash	≤ 0.01 %

Merck 100686 0100 Sulfanilic Acid Gr Analysis 100 GR.