Naphthalene

Name: Naphthalene
Brand: ALDRICH

99%

Sinonimo/i:

Naphthalin, Tar Camphor, White Tar

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Informazioni su questo articolo

Formula empirica (notazione di Hill):

C₁₀H₈

Numero CAS:

91-20-3

Peso molecolare:

128.17

NACRES:

NA.22

PubChem Substance ID:

24848808

eCl@ss:

39011601

UNSPSC Code:

12352100

EC Number:

202-049-5

MDL number:

MFCD00001742

Beilstein/REAXYS Number:

1421310

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Nome del prodotto

Naphthalene, 99%

InChI key

UFWIBTONFRDIAS-UHFFFAOYSA-N

InChI

1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H

SMILES string

c1ccc2ccccc2c1

vapor density

4.4 (vs air)

vapor pressure

0.03 mmHg ( 25 °C)

assay

99%

form

crystals
flakes

autoignition temp.

978 °F

expl. lim.

5.9 %

bp

218 °C (lit.)

mp

80-82 °C (lit.)

solubility

methanol: soluble 50 mg/mL, clear, colorless

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1 of 4

Questo articolo	184500	PHR1275	8.20846
Sigma-Aldrich 147141 Naphthalene	Sigma-Aldrich 184500 Naphthalene	Supelco PHR1275 Naphthalene	Sigma-Aldrich 8.20846 Naphthalene
assay 99%	assay ≥99%	assay -	assay ≥99.0% (GC)
solubility methanol: soluble 50 mg/mL, clear, colorless	solubility methanol: soluble 50 mg/mL, clear, colorless	solubility -	solubility slightly soluble ≥0.038 g/L
Quality Level 200	Quality Level 100	Quality Level 300	Quality Level 200
mp 80-82 °C (lit.)	mp 80-82 °C (lit.)	mp 80-82 °C (lit.)	mp 79-82 °C
bp 218 °C (lit.)	bp 218 °C (lit.)	bp 218 °C (lit.)	bp 218 °C/1013 hPa
form crystals, flakes	form crystals, flakes	form -	form solid

Application

Naphthalene was used in liquid-phase exfoliation of graphite in organic solvents for the production of graphene sheets[1]. It was used in preparation of carbon-coated Si₇₀Sn₃₀ nanoparticles[2]. It was used as fluorescent probe to study the aggregation behavior of sodium cholate[3].

General description

Heterogeneous ozonolysis of naphthalene adsorbed on XAD-4 resin has been studied using annular denuder technique[4].

Naphthalene is widely used to synthesize naphthylamines,sulfonic acid,synthetic resins,anthranilic and phthalic acids.[5]

pictograms

GHS02,GHS08,GHS07,GHS09

signalword

Warning

hcodes

H228,H302,H351,H410

pcodes

P202 - P210 - P240 - P273 - P301 + P312 - P308 + P313

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Flam. Sol. 2

Classe di stoccaggio

4.1B - Flammable solid hazardous materials

wgk

WGK 3

flash_point_f

173.3 °F - closed cup

flash_point_c

78.5 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificati d'analisi (COA)

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Probing the binding dynamics to sodium cholate aggregates using naphthalene derivatives as guests.

Olga Rinco et al.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2(11), 1140-1151 (2003-12-24)

The binding dynamics with bile salt aggregates for a series of naphthalene derivatives of different polarities was studied using fluorescence and laser flash photolysis. Fluorescence was employed to determine the nature of the binding site for each guest and the

Naphthalene toxicity and antioxidant nutrients

Stohs SJ, et al.

Toxicology, 180, 97-105 (2002)

Evaluation of the reaction artifacts in an annular denuder-based sampler resulting from the heterogeneous ozonolysis of naphthalene.

Mathieu Goriaux et al.

Environmental science and pollution research international, 21(8), 5628-5636 (2014-01-15)

The heterogeneous ozonolysis of naphthalene adsorbed on XAD-4 resin was studied using an annular denuder technique. The experiments involved depositing a known quantity of naphthalene on the XAD-4 resin and then measuring the quantity of the solid naphthalene that reacted

Liquid-phase exfoliation of graphene in organic solvents with addition of naphthalene.

Jiasheng Xu et al.

Journal of colloid and interface science, 418, 37-42 (2014-01-28)

We report a facile method for the production of graphene sheets through liquid-phase exfoliation of graphite in organic solvents with addition of naphthalene. The production yield of graphene is significantly increased with the addition of naphthalene in most solvents tested

High capacity carbon-coated Si70Sn30 nanoalloys for lithium battery anode material.

YooJeong Kwon et al.

Chemical communications (Cambridge, England), (9)(9), 1109-1111 (2008-02-23)

Carbon-coated Si70Sn30 nanoalloys with a particle size < 10 nm were prepared from butyl-capped analogues via firing at 900 degrees C under a vacuum showed a reversible capacity of 2032 mAh g(-1) and excellent capacity retention.

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Questions

1–2 of 2 Questions

Anonymous

5 months ago

How can I determine the shelf life / expiration / retest date of this product?

1 answer
1. Technical Support
  
  5 months ago
  
  If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
  For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
  For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
  For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
  
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Anonymous

a year ago

How is shipping temperature determined? And how is it related to the product storage temperature?

1 answer
1. Technical Support
  
  a year ago
  
  Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
  
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