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ChemicalBook--->CAS DataBase List--->525-05-3

525-05-3

525-05-3 Structure

525-05-3 Structure
IdentificationMore
[Name]

1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
[CAS]

525-05-3
[Synonyms]

1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
2-HYDROXY-1-NITROSO-3,6-NAPHTHALENEDISULFONIC ACID DISODIUM SALT
3-HYDROXY-4-NITROSO-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT
DISODIUM 1-NITROSO-2-NAPHTHOL-3,6-DISULFONATE
DISODIUM 3-HYDROXY-4-NITROSO-2,7-NAPHTHALENEDISULFONATE
LABOTEST-BB LT00454615
NITROSO-R-SALT
1-Nitroso-2-naphthol-3,6-disul
1-Nitroso-2-naphthol-3,6-disulfonicacidsodiumsalt
2,7-Naphthalenedisulfonicacid,3-hydroxy-4-nitroso-,disodiumsalt
7-naphthalenedisulfonicacid,3-hydroxy-4-nitroso-disodiumsalt
nitrosor
disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulphonate
Nitroso-RSalt>95%
Hydroxy-4-Nitroso-2,7NaphthalenedisulfonicAcidSodiumSalt-Nitroso-R-Salt
Nitroso-R-SaltGr
Nitroso-Rsalt,tech.85%
1-Nitroso-2-hydroxynaphthalene-3,6-disulfonic acid, sodium salt
1-Nitroso-2-naphthol-3,6-disulfonic acid, disodium salt hydrate, indicator grade, pure
1-nitroso-r-salt
[EINECS(EC#)]

208-369-1
[Molecular Formula]

C10H5NNa2O8S2
[MDL Number]

MFCD00003885
[Molecular Weight]

377.26
[MOL File]

525-05-3.mol
Chemical PropertiesBack Directory
[Appearance]

YELLOWISH-ORANGE TO YELLOW-BROWN CRYST. POWDER
[Melting point ]

>300 °C(lit.)
[solubility ]

Slightly soluble in methanol and ethanol.
[form ]

Crystalline Powder
[color ]

Yellow to orange
[Water Solubility ]

almost transparency
[Merck ]

14,6644
[BRN ]

3643930
[CAS DataBase Reference]

525-05-3(CAS DataBase Reference)
[EPA Substance Registry System]

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-nitroso-, disodium salt (525-05-3)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
[Safety Statements ]

S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

3
[RTECS ]

QJ6480000
[TSCA ]

Yes
[HS Code ]

29089990
Hazard InformationBack Directory
[Chemical Properties]

YELLOWISH-ORANGE TO YELLOW-BROWN CRYST. POWDER
[Uses]

1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt is the most sensitive determination of trace cobalt reagents used for determination of cobalt and potassium-sensitive reagents.
[Uses]

As a reagent for cobalt and potassium.
[Purification Methods]

Purify the salt by dissolution in aqueous alkali and precipitation by addition of HCl. The pKa is 7.13. [Oka & Miyamoto J Chem Soc Jpn (Pure Chem Sectn) 76 672 1955 (Chem Abstr 11882 1956I), Beilstein 11 IV 669.]
Spectrum DetailBack Directory
[Spectrum Detail]

1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT(525-05-3)IR1
1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT(525-05-3)IR2
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

1-Nitroso-2-naphthol-3,6-disulfonic acid, disodium salt hydrate, 98%(525-05-3)
[Alfa Aesar]

1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt, 90+%(525-05-3)
[Sigma Aldrich]

525-05-3(sigmaaldrich)
[TCI AMERICA]

Disodium 1-Nitroso-2-naphthol-3,6-disulfonate  Monohydrate(525-05-3)
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