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Naphthalene

CAS:
91-20-3
MF:
C10H8
MW:
128.17

Properties

Melting point:
80-82 °C (lit.)
Boiling point:
218 °C (lit.)
Density 
0.99
vapor density 
4.4 (vs air)
vapor pressure 
0.03 mm Hg ( 25 °C)
refractive index 
1.5821
Flash point:
174 °F
storage temp. 
Store below +30°C.
solubility 
methanol: soluble50mg/mL, clear, colorless
form 
Faint beige to brown to salmon red powder
color 
White to almost white
Specific Gravity
1.145
explosive limit
0.9-5.9%(V)
Water Solubility 
30 mg/L (25 ºC)
Merck 
14,6370
BRN 
1421310
Henry's Law Constant
5.64 at 25 °C (thermodynamic method-GC/UV spectrophotometry, Altschuh et al., 1999)
Exposure limits
TLV-TWA 10 ppm (~50 mg/m3) (ACGIH, MSHA, and OSHA); STEL 15 ppm (~75 mg/m3) (ACGIH); IDLH 500 ppm.
InChIKey
UFWIBTONFRDIAS-UHFFFAOYSA-N

Safety Information

Symbol(GHS) 

GHS02,GHS06,GHS08,GHS07,GHS09
Signal word 
Danger
Hazard statements 
H400-H225-H301+H311+H331-H370-H412-H228-H302-H351-H410-H304-H315-H336
Precautionary statements 
P210-P280-P302+P352+P312-P304+P340+P312-P370+P378-P403+P235-P301+P312+P330-P261-P273-P301+P310-P331-P501-P201-P240-P405-P501a
Hazard Codes 
Xn,N,F,T
Risk Statements 
22-40-50/53-67-65-38-11-39/23/24/25-23/24/25-52/53-20
Safety Statements 
36/37-46-60-61-62-45-16-7-33-25-9
RIDADR 
UN 1334 4.1/PG 3
WGK Germany 
3
RTECS 
QJ0525000
Autoignition Temperature
978 °F
TSCA 
Yes
HazardClass 
4.1
PackingGroup 
III
HS Code 
29029010
Toxicity
Acute oral LD50 for guinea pigs 1,200 mg/kg, mice 533 mg/kg, rats 1,250 mg/kg (quoted, RTECS, 1985).

Use

Naphthalene is a white solid chemical that vaporizes easily. It has a strong smell. You can sometimes smell naphthalene in the air or in water. Called white tar and tar camphor, naphthalene is used in mothballs and moth flakes. Petroleum and coal contain naphthalene. Naphthalene, the simplest of the fused or condensed ring hydrocarbon compounds composed of two benzene rings sharing two adjacent carbon atoms. Naphthalene is the most abundant single constituent of coal tar, a volatile product from the destructive distillation of coal, and is also formed in modern processes for the high-temperature cracking (breaking up of large molecules) of petroleum. 1-Methylnaphthalene and 2-methylnaphthalene are naphthalene-related compounds. 1-Methylnaphthalene is a clear liquid and 2-methylnaphthalene is a solid; both can be smelled in air and in water at very low concentrations. 1-Methylnaphthalene and 2-methylnaphthalene are used to make other chemicals such as dyes and resins. 2-Methylnaphthalene is also used to make vitamin K.

258 supplier list of "Naphthalene"

    $0.00/ 50KG

  • Product Name:Naphthalene
  • Products Intro:Purity: 99% | Package: 50KG;USD
  • Company Type: Manufacturer
  • Country/Region: CHINA
  • Product Name:91-20-3
  • Products Intro:Purity: 0.99 | Package: 25KG,5KG;1KG;500G
  • Company Type: Trader
  • Country/Region: CHINA
  • Product Name:Refined naphthalene
  • Products Intro:Purity: 99.5 | Package: 1ASSAYS;1USD
  • Company Type: Reagent
  • Country/Region: CHINA

    $10.00/ 1KG

  • Product Name:Naphthalene
  • Products Intro:Purity: 99%|Package: 1KG;10USD
  • Company Type: Trader
  • Country/Region: CHINA
  • Main Products: phenactin,4-Methylpropiophenone 5337-93-9,288573-56-8,443998-65-0

    $1.00/ 1kg

  • Product Name:Naphthalene
  • Products Intro:Purity: 99% | Package: 1kg;1USD
  • Company Type: Reagent
  • Country/Region: CHINA
  • Main Products: Nicotinamide riboside chloride,Curcumin,L(+)-Ascorbic acid,L-Glutamine,Stevioside Basic information
  • Product Name:refined naphthalene
  • Products Intro:Purity: 0.99 | Package: 5KG;1KG
  • Company Type: Trader
  • Country/Region: CHINA
  • Main Products: Daily Chemicals
  • Product Name:naphthalene
  • Products Intro:Purity: 99% | Package: 5KG;1KG | CustNote: C10H8
  • Company Type: Trader
  • Country/Region: CHINA
  • Main Products: Apis

    $0.00/ 25Kg/Bag

  • Product Name:Naphthalene
  • Products Intro:Purity: 99% | Package: 25Kg/Bag;USD
  • Company Type: Trader
  • Country/Region: CHINA
  • Main Products: Carbohydrazide,o-Phthalaldehyde,4-hydroxy tempo,Sodium tetraphenylborate,Terephthalaldehyde
  • Product Name:naphtalene
  • Company Type: Service provider
  • Country/Region: CHINA
  • Main Products: UDDA
  • Product Name:Naphthalene
  • Products Intro:Purity: 0.99 | Package: 5KG;1KG
  • Company Type: Trader
  • Country/Region: CHINA

Naphthalene Related Search:

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