1-Nitroso-2-naphthol
![1-Nitroso-2-naphthol Structure](CAS/GIF/131-91-9.gif)
- CAS No.
- 131-91-9
- Chemical Name:
- 1-Nitroso-2-naphthol
- Synonyms
- CI NO 10005;Cobalt reagent;zelenmoridlova4;Zelen moridlova 4;1-Nitroso-2-phthol;Nitroso-2-Naphthol;Nitroso-β-naphthol;1-Nitroso-2-naftol;TIMTEC-BB SBB009148;1-nitroso-2-naphtho
- CBNumber:
- CB2268400
- Molecular Formula:
- C10H7NO2
- Molecular Weight:
- 173.17
- MOL File:
- 131-91-9.mol
- Modify Date:
- 2023/12/24 19:27:57
Melting point | 106-108 °C (dec.) (lit.) |
---|---|
Boiling point | 303.81°C (rough estimate) |
Density | 1.2427 (rough estimate) |
refractive index | 1.5200 (estimate) |
storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
form | crystalline |
Colour Index | 10005 |
pka | 7.87±0.10(Predicted) |
color | tan to brown |
Water Solubility | insoluble |
Merck | 14,6641 |
BRN | 776947 |
CAS DataBase Reference | 131-91-9(CAS DataBase Reference) |
NIST Chemistry Reference | 2-Naphthalenol, 1-nitroso-(131-91-9) |
EPA Substance Registry System | 2-Naphthalenol, 1-nitroso- (131-91-9) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
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---|---|---|---|---|---|---|---|---|---|---|
Signal word | Warning | |||||||||
Hazard statements | H302-H315-H319-H335 | |||||||||
Precautionary statements | P261-P264-P270-P301+P312-P302+P352-P305+P351+P338 | |||||||||
Hazard Codes | Xn | |||||||||
Risk Statements | 22-36/37/38-33-20/21/22 | |||||||||
Safety Statements | 26-36-45 | |||||||||
RIDADR | UN3077 | |||||||||
WGK Germany | 3 | |||||||||
RTECS | QL4725000 | |||||||||
F | 8 | |||||||||
TSCA | Yes | |||||||||
HazardClass | 9 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29089000 | |||||||||
Toxicity | LDLo orl-rat: 500 mg/kg NCNSA6 5,35,53 | |||||||||
NFPA 704 |
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1-Nitroso-2-naphthol price More Price(10)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | 114693 | 1-Nitroso-2-naphthol 97% | 131-91-9 | 25G | ₹7176.98 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 114693 | 1-Nitroso-2-naphthol 97% | 131-91-9 | 100G | ₹15198.3 | 2022-06-14 | Buy |
TCI Chemicals (India) | N0266 | 1-Nitroso-2-naphthol min. 98.0 % | 131-91-9 | 25G | ₹4500 | 2022-05-26 | Buy |
ottokemi | N 1937 | 1-Nitroso-2-naphthol , GR 99%+ | 131-91-9 | 10gm | ₹603 | 2022-05-26 | Buy |
ottokemi | N 1937 | 1-Nitroso-2-naphthol , GR 99%+ | 131-91-9 | 25gm | ₹891 | 2022-05-26 | Buy |
1-Nitroso-2-naphthol Chemical Properties,Uses,Production
Chemical Properties
brown powder
Uses
1-Nitroso-2-naphthol as a complexing agent for the on-line preconcentration of cobalt with FI-FAAS. 1-Nitroso-2-naphthol is the chelating ion-exchanger in the synthesis of alumina adsorbents that are of acidic, basic and neutral nature. It is used for the removal and preconcentration of Pb(II), Cu(II), Cr(III) from waste, as well as drinking water. It is also used in the preconcentration of cobalt using C(18) microcolumn with flow injection that is coupled to a flame atomic absorption spectrometry (FI-FAAS) system. 1-Nitroso-2-naphthol is used in the preparation of 1-nitroso-2-naphthol-sodium nitrite reagent.
Safety Profile
Moderately toxic by ingestion.Many nitroso compounds are carcinogens. Ignites whenheated to 124°C. Mutation data reported. When heated todecomposition it emits toxic fumes of NOx.
Purification Methods
Crystallise the naphthol from pet ether (b 60-80o, 7.5mL/g). [Beilstein 7 H 712, 7 IV 2419.]
1-Nitroso-2-naphthol Preparation Products And Raw materials
Raw materials
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