ChemicalBook > CAS DataBase List > 1-Nitroso-2-naphthol

1-Nitroso-2-naphthol

Product Name
1-Nitroso-2-naphthol
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
Formula Weight
173.17
MOL File
131-91-9.mol
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1-Nitroso-2-naphthol Property

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
Colour Index 
10005
pka
7.87±0.10(Predicted)
form 
crystalline
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)
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Safety

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
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
114693
Product name
1-Nitroso-2-naphthol
Purity
97%
Packaging
25g
Price
$80
Updated
2024/03/01
Sigma-Aldrich
Product number
114693
Product name
1-Nitroso-2-naphthol
Purity
97%
Packaging
100g
Price
$160
Updated
2024/03/01
TCI Chemical
Product number
N0266
Product name
1-Nitroso-2-naphthol
Purity
>98.0%(GC)(T)
Packaging
25g
Price
$59
Updated
2024/03/01
Alfa Aesar
Product number
A10622
Product name
1-Nitroso-2-naphthol, 99%
Packaging
10g
Price
$32.4
Updated
2024/03/01
Alfa Aesar
Product number
A10622
Product name
1-Nitroso-2-naphthol, 99%
Packaging
50g
Price
$85.7
Updated
2024/03/01
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1-Nitroso-2-naphthol Chemical Properties,Usage,Production

Chemical Properties

brown powder

Uses

Organic synthesis, prevention of gum formation in gasoline, dye intermediate, analytical reagent.

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.

Definition

ChEBI: 1-Nitroso-2-naphthol is a member of naphthols.

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

1-Naphthol Congo red paper

Preparation Products

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1-Nitroso-2-naphthol Suppliers

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View Lastest Price from 1-Nitroso-2-naphthol manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
1-Nitroso-2-naphthol 131-91-9
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2023-02-09
Henan Fengda Chemical Co., Ltd
Product
1-Nitroso-2-naphthol 131-91-9
Price
US $100.00-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-24
Hebei Mojin Biotechnology Co., Ltd
Product
1-Nitroso-2-naphthol 131-91-9
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-06-28

131-91-9, 1-Nitroso-2-naphtholRelated Search:

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