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Merck

8.20846

Naphthalene

for synthesis

Synonym(s):

Naphthalene

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About This Item

Empirical Formula (Hill Notation):
C10H8
CAS Number:
Molecular Weight:
128.17
UNSPSC Code:
12352005
EC Index Number:
202-049-5
NACRES:
NA.22
MDL number:
Assay:
≥99.0% (GC)
Form:
solid
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vapor pressure

0.072 hPa ( 20 °C)

Quality Segment

assay

≥99.0% (GC)

form

solid

autoignition temp.

540 °C

potency

>2500 mg/kg LD50, skin (Rat)

expl. lim.

0.9-5.9 % (v/v)

bp

218 °C/1013 hPa

mp

79-82 °C

transition temp

flash point 79 °C

solubility

slightly soluble ≥0.038 g/L

density

1.085 g/cm3 at 20 °C

bulk density

550‑600 mg/m3

storage temp.

2-30°C

SMILES string

c21c(cccc2)cccc1

InChI

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

InChI key

UFWIBTONFRDIAS-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 79 °C
Melting range (upper value): ≤ 82 °C
Identity (IR): passes test


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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

WGK 3

flash_point_f

173.3 °F - closed cup

flash_point_c

78.5 °C - closed cup


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

Class I Designated Chemical Substances

prtr

8208469999: + 8208460000: + 8208461000: + 8208460100:

jan



Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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