Detail of > 842-18-2
- CAS Number:
- 842-18-2
- Name:
1,3-Naphthalenedisulfonicacid, 7-hydroxy-, potassium salt (1:2)
- Superlist Name:
- Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
- Formula:
- C10H6K2O7S2
- Molecular Structure:
- Synonyms:
- 1,3-Naphthalenedisulfonicacid, 7-hydroxy-, dipotassium salt (8CI,9CI);2-Naphthol-6,8-disulfonic aciddipotassium salt;Dipotassium 2-naphthol-6,8-disulfonate;
- Molecular Weight:
- 380.45
- EINECS:
- 212-672-4
- Appearance:
- Moist paste
- Safety:
- 24/25Details
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Reference
- Aminonaphthalene derivatives
- Aminonaphthalene derivatives. Spielberger, Georg; Wunderlich, Hermann; Klag, Guenther; Zlokarnik, Marko (Bayer A.-G., Ger.). Ger. Offen. DE 2531281 13 Jan 1977, 19 pp.There are some reagents with their cas registry numbers 135-76-2 and 842-18-2 are used in this study. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07C143-60. APPLICATION: DE 75-2531281 12 Jul 1975. DOCUMENT TYPE: Patent CA Section: 26 (Condensed Aromatic Compounds) H2NC10H7-n(SO3H)n (n = 1, 2) were prepd. in a continuous process by the reaction of HOC10H7-n(SO3H)n salts with NH3 in the presence of NH4HSO4 in a Ti alloy app. with the exclusion of elemental C. Thus, 2,1-HOC10H6SO3Na reacted with liq. NH3 at 145.degree. in the presence of NH4HSO4, followed by treatment with H2SO4 to give 97% 2,1-H2NC10H6SO3H. .
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