Home Categories Organic Chemistry 1-Chloronaphthalene
A2290312

1-Chloronaphthalene , 85%, the remaining objects are 2-chlorine sink , 90-13-1

Synonym(s):
α-Naphthyl chloride;1-Chloronaphthalene

CAS NO.:90-13-1

Empirical Formula: C10H7Cl

Molecular Weight: 162.62

MDL number: MFCD00003874

EINECS: 201-967-3

Update time: 2022-07-08

PRODUCT Properties

Melting point: −20 °C(lit.)
Boiling point: 111-113 °C5 mm Hg(lit.)
Density  1.194 g/mL at 25 °C(lit.)
vapor pressure  0.05 hPa (20 °C)
refractive index  n20/D 1.632(lit.)
Flash point: 250 °F
storage temp.  2-8°C
solubility  alcohol: soluble
form  Liquid
color  Clear colorless to yellow, product may discolor during storage
PH 7 (H2O, 20℃)(undiluted)
Water Solubility  insoluble. <0.1 g/100 mL at 20 ºC
Merck  14,2149
BRN  970836
Dielectric constant 5.0
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.

Description and Uses

The chlorinated naphthalenes in which one ormore hydrogen atoms have been replaced by chlorine toform wax-like substances, beginning with monochloronaphthalene and going on to the octachlor derivatives.Their physical states vary from mobile liquids to waxysolids depending on the degree of chlorination; Freezing/Melting points of the pure compounds range from 17℃for 1-chloronaphthalene to 198℃for 1,2,3,4-tetrachloronaphthalene.
1-chloro-isomer: Hazard Identification (based on NFPA704 M Rating System): Health 2, Flammability 1,Reactivity 0
2-chloro-isomer: Molecular weight=162.62; Boilingpoint=256℃; Freezing/Melting point=61℃. HazardIdentification (based on NFPA 704 M Rating System):Health 2, Flammability 0, Reactivity 0. Insoluble in water.hexa-isomer: White to light-yellow solid with an aromaticodor. Molecular weight=334.82; Boiling point =343-388℃; Freezing/Melting point=137℃. Insoluble inwater.
octa-isomer: Waxy, pale yellow solid with an aromaticodor. Molecular weight=403.74; Boilingpoint=410-440℃; Freezing/Melting point=185-192℃.Insoluble in water.
penta-isomer: Colorless to white crystalline solid with abenzene-like odor. Molecular weight=300.40; Boilingpoint=336℃; Freezing/Melting point=120℃. Slightlysoluble in water.
tetra-isomer: Colorless to pale yellow solid with an aromatic odor. Molecular weight=265.96; Boiling point =315-360℃; Freezing/Melting point=182℃; Flashpoint=210℃(oc). Insoluble in water
tri-isomer: Colorless to pale yellow solid with an aromaticodor. Molecular weight=231.51; Boiling point =304-354℃; Freezing/Melting point=93℃; Flash point:198℃(oc). Insoluble in water.

1-Chloronaphthalene was widely used in Xylamits as a wood preservative with fungicidal and insecticidal properties in the past in Poland. 2-Chloronaphthalene was produced and used as a solvent in Poland, some of PCNs were found in polychlorinated biphenyls (PCBs) congeners.

Safety

Symbol(GHS) 
GHS07,GHS09
Signal word  Warning
Hazard statements  H302-H315-H319-H335-H400
Precautionary statements  P273-P301+P312+P330-P302+P352-P305+P351+P338
Hazard Codes  Xn,Xi,N,T,F
Risk Statements  22-36/37/38-51/53-39/23/24/25-23/24/25-11
Safety Statements  26-36-61-37/39-29-36/37-45-16-7
RIDADR  3082
WGK Germany  2
RTECS  QJ2100000
Autoignition Temperature >500 °C
Hazard Note  Irritant
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29039990
Toxicity LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg

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