Scheffers acid

Name	6-hydroxynaphthalene-2-sulphonic acid
Synonyms	Baum's acid Scheffers acid 2-Naphtol-6-sulfosaure 6-Hydroxy-6-Sulfonic Acid 2-naphthol-6-sulphonic acid beta-naphthol-6-sulfonicacid beta-Naphthol-6-sulfonic acid 2-Naphthol-6-sodium sulfonate 2-Naphthol-6-sulfonate potassium 6-hydroxy-2-naphthalenesulfonicaci 2-hydroxy-6-naphthalenesulfonicacid 6-hydroxynaphthalene-2-sulfonic acid 6-Hydroxy-2-Naphthalenesulfonic Acid 2-Hydroxynaphthalene-6-sulfonic acid 2-Hydroxy-6-naphthalenesulfonic acid 6-hydroxynaphthalene-2-sulphonic acid
CAS	93-01-6
EINECS	202-209-4
InChI	InChI=1/C10H8O4S/c11-9-3-1-8-6-10(15(12,13)14)4-2-7(8)5-9/h1-6,11H,(H,12,13,14)

Molecular Formula	C10H8O4S
Molar Mass	224.23
Density	1.4643 (rough estimate)
Melting Point	>300°C(lit.)
Boling Point	335.63°C (rough estimate)
pKa	0.41±0.40(Predicted)
Refractive Index	1.5400 (estimate)
Physical and Chemical Properties	Patchy crystals.
Use	For the manufacture of acid dyes and food dyes

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing.
WGK Germany	3

NIST chemical information	information provided by: webbook.nist.gov (external link)
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Use	for the manufacture of acid dyes and edible dyes for the manufacture of acid dyes and ballpoint pen inks.
production method	is derived from 2-naphthol and sulfuric acid sulfonated at 80 °c. The sulfonated product was salted out with sodium chloride to obtain Scheren's salt.

Last Update：2024-04-10 22:29:15

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CAS: 93-01-6
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Scheffers acid

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