disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate
Disodium 1-nitroso-2-naphthol-3,6-disulfonate
CAS: 525-05-3
Molecular Formula: C10H8NNaO8S2
disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate - Names and Identifiers
disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate - Physico-chemical Properties
| Molecular Formula | C10H8NNaO8S2 |
| Molar Mass | 357.28 |
| Melting Point | >300°C(lit.) |
| Water Solubility | almost transparency |
| Solubility | Soluble in about 40 parts of water, easily soluble in hot water, slightly soluble in methanol and ethanol |
| Appearance | Golden yellow fan crystal or crystalline powder |
| Color | Yellow to orange |
| Merck | 14,6644 |
| BRN | 3643930 |
| Storage Condition | RT, dark |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00003885 |
| Physical and Chemical Properties | Golden yellow crystals or crystalline powders. Solubility in 2.5g water, g when cold, 10g when hot. Slightly soluble in methanol and ethanol. The solution and acidic solution are light yellow, the alkaline solution is orange yellow. |
| Use | This product is for scientific research only and shall not be used for other purposes. |
disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| RTECS | QJ6480000 |
| TSCA | Yes |
| HS Code | 29089990 |
disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate - Introduction
Biochemical research. Photometric determination of cobalt and potassium. Verification of silver, barium, calcium, cobalt, iron, nickel, and lead.
Last Update：2022-10-16 17:25:52
disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | this product is the most sensitive reagent for the determination of trace cobalt. as a sensitive reagent for the determination of cobalt and potassium colorimetric determination of cobalt and potassium is the most sensitive reagent for the determination of trace cobalt (determination of Co, Fe, K reagents, detection of Ag, Ba, Ca, Co, Fe, Ni, Pb) organic synthesis. Prevent the formation of gum in gasoline. |
| production method | is prepared by crooked nitrification of r salt. Dissolve R salt in water, add concentrated hydrochloric acid, and cool to 5 ℃. Under vigorous stirring, slowly stirring, slowly add the pre-cooled sodium nitrite solution. After adding, continue stirring for 15min. Filter, wash impurities with water, and add ethanol to wash once to obtain pure products. |
Last Update：2024-04-09 21:00:56
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View History
disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate
(3S)-FMOC-3-AMINO-1-CARBOXYMETHYL-CAPROLACTAME
N-(2-甲酰苯基)-4-氯-苯磺酰胺
ZOFENOPRIL CALCIUM
(2S)-4-[(tert-Butoxy)carbonyl]-2-morpholineacetic acid
(2beta,3beta)-2,3-Dihydroxy-olean-12-en-28-oic acid
TMA(TRIMETHYLAMINE)
Tert-butoxycarbonyl alanine
(3S)-FMOC-3-AMINO-1-CARBOXYMETHYL-CAPROLACTAME
N-(2-甲酰苯基)-4-氯-苯磺酰胺
ZOFENOPRIL CALCIUM
(2S)-4-[(tert-Butoxy)carbonyl]-2-morpholineacetic acid
(2beta,3beta)-2,3-Dihydroxy-olean-12-en-28-oic acid
TMA(TRIMETHYLAMINE)
Tert-butoxycarbonyl alanine