Name | 1-Chloronaphthalene |
Synonyms | PCN-1 1-Chlornaftalen A-CHLORONAPHTALENE 1-Naphthyl Chloride 1-Chloronaphthalene 1-NAPHTHYL CHLORIDE 1-CHLORONAPHTHALENE 1-Chloro naphthalene ALPHA-CHLORONAPHTHALENE ALPHA-NAPHTHYL CHLORIDE 1-CHLOROMETHYLNAPHTHALENE 2-(3,4-dichlorophenyl)-N-methyl-N-[(1R,2R)-2-pyrrolidin-1-ylcyclohexyl]acetamide |
CAS | 90-13-1 |
EINECS | 201-967-3 |
InChI | InChI=1/C19H26Cl2N2O/c1-22(19(24)13-14-8-9-15(20)16(21)12-14)17-6-2-3-7-18(17)23-10-4-5-11-23/h8-9,12,17-18H,2-7,10-11,13H2,1H3/t17-,18-/m1/s1 |
Molecular Formula | C10H7Cl |
Molar Mass | 162.62 |
Density | 1.194g/mLat 25°C(lit.) |
Melting Point | −20°C(lit.) |
Boling Point | 111-113°C5mm Hg(lit.) |
Flash Point | 250°F |
Water Solubility | insoluble. |
Solubility | alcohol: soluble |
Vapor Presure | 0.05 hPa (20 °C) |
Appearance | Liquid |
Color | Clear colorless to yellow, product may discolor during storage |
Merck | 14,2149 |
BRN | 970836 |
PH | 7 (H2O, 20℃)(undiluted) |
Storage Condition | 2-8°C |
Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
Refractive Index | n20/D 1.632(lit.) |
Physical and Chemical Properties | Character colorless volatile oily liquid. melting point -2.3 ℃ boiling point 260.2 ℃ relative density 1.1938g/cm3(20 ℃) refractive index 1.6326 flash point 121 ℃ solubility insoluble in water, soluble in carbon tetrachloride, carbon disulfide, benzene and chlorobenzene. |
Use | For the preparation of 1-naphthol, used in the production of dyes, wood preservatives, fungicides, special detergents |
Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S37/39 - Wear suitable gloves and eye/face protection S29 - Do not empty into drains. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
UN IDs | 3082 |
WGK Germany | 2 |
RTECS | QJ2100000 |
TSCA | Yes |
HS Code | 29039990 |
Hazard Note | Irritant |
Hazard Class | 9 |
Packing Group | III |
Toxicity | LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | for the preparation of 1-naphthol, for the production of dyes, wood preservatives, fungicides, used as oil solvent used in organic synthesis, preparation of 1-naphthol, can also be used as solvent, analytical reagent. |
production method | is derived from the direct chlorination of naphthalene: zinc is used as a catalyst in the chlorination reaction, and the ratio of naphthalene to chlorine is 1:0.84-1.17, the amount of catalyst is 0.4-0.5% of the weight of naphthalene, the chlorine time is 3-6h, the reaction temperature is 90-95 ℃, the average yield of 1-chloronaphthalene is 81.7%, and the purity of the product is 96% after the second fractionation. Iodine can also be used as a catalyst, reaction in the solvent chlorobenzene, reaction temperature 60-70 C, chlorine 6h that is the end of the reaction. 2-chloronaphthalene is produced simultaneously by direct chlorination, accounting for about 2-20%, and the boiling points of the two isomers are similar (2-chloronaphthalene boiling point 264-266 ℃). The chemical properties are similar and it is difficult to separate. A small amount of production can also be obtained by diazotization and replacement of methylnaphthylamine. |
category | toxic substances |
toxicity grade | poisoning |
Acute toxicity | oral-rat LD50: 1540 mg/kg; Oral-mouse LD50:1091 mg/kg |
flammability hazard characteristics | open flame, high temperature flammable; Toxic chloride gas by high thermal decomposition |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants and food additives |
fire extinguishing agent | foam, carbon dioxide, sand, water mist, dry powder. |
Occupational Standard | TWA 0.2 mg/m3; Tel 0.6 mg/m3 |
spontaneous combustion temperature | >500°C |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |