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147141

Sigma-Aldrich

Naphthalene

99%

Sinónimos:

Naphthalin, Tar Camphor, White Tar

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25 G
$41.50
1 KG
$58.80
3 KG
$158.00

$41.50

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25 G
$41.50
1 KG
$58.80
3 KG
$158.00

About This Item

Fórmula empírica (notación de Hill):
C10H8
Número de CAS:
91-20-3
Peso molecular:
128.17
Beilstein/REAXYS Number:
1421310
EC Number:
202-049-5
MDL number:
MFCD00001742
UNSPSC Code:
12352100
eCl@ss:
39011601
PubChem Substance ID:
24848808
NACRES:
NA.22
form:
crystals
flakes
assay:
99%

$41.50

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vapor density

4.4 (vs air)

Quality Level

200

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

SMILES string

c1ccc2ccccc2c1

InChI

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

InChI key

UFWIBTONFRDIAS-UHFFFAOYSA-N

Gene Information

human ... CYP1A2(1544)

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General description

Heterogeneous ozonolysis of naphthalene adsorbed on XAD-4 resin has been studied using annular denuder technique[1].

Naphthalene is widely used to synthesize naphthylamines,sulfonic acid,synthetic resins,anthranilic and phthalic acids.[2]

Application

Naphthalene was used in liquid-phase exfoliation of graphite in organic solvents for the production of graphene sheets[3]. It was used in preparation of carbon-coated Si70Sn30 nanoparticles[4]. It was used as fluorescent probe to study the aggregation behavior of sodium cholate[5].

signalword

Warning

Hazard Classifications

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

Storage Class

4.1B - Flammable solid hazardous materials

wgk_germany

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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Certificados de análisis (COA)

Lot/Batch Number
MKCW2356
MKCV4551
MKCT4842
MKCR5483
MKCS2734

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Slide 1 of 4

1 of 4

Melting point standard 79.5-81°C analytical standard

Supelco

01422

Melting point standard 79.5-81°C

Anthracene reagent grade, 97%

Sigma-Aldrich

A89200

Anthracene

2-Naphthol 99%

Sigma-Aldrich

185507

2-Naphthol

Pyrene 98%

Sigma-Aldrich

185515

Pyrene

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)
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
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
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

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

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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

    1 answer

    1. 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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