Name | Naphthalene |
Synonyms | Naftalen HSDB 184 AI3-00278 NAPHTHENE Naphthene NSC 37565 White tar NAPTHALIN NCI-C52904 Naphthalin NAPTHALENE Naphtalene CCRIS 1838 Albocarbon Mighty 150 Mighty RD1 Moth balls Naphthaline Naphthalene Camphor tar Dezodorator Moth flakes TAR CAMPHOR NAPHTHALENE Tar camphor 'LGC' (2402) 'LGC' (2603) 1-NAPHTHALENE Naphthalene, pure Naftalen [Polish] Naphthalene, molten Naphthalene (molten) RCRA waste number U165 Naphthalene, crude or refined EPA Pesticide Chemical Code 055801 Naphthalene, molten [UN2304] [Flammable solid] Naphthalene, crude or refined [UN1334] [Flammable solid] |
CAS | 91-20-3 72931-45-4 |
EINECS | 202-049-5 |
InChI | InChI=1/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H |
InChIKey | UFWIBTONFRDIAS-UHFFFAOYSA-N |
Molecular Formula | C10H8 |
Molar Mass | 128.17 |
Density | 0.99 |
Melting Point | 80-82 °C (lit.) |
Boling Point | 218 °C (lit.) |
Flash Point | 174°F |
Water Solubility | 30 mg/L (25 ºC) |
Solubility | methanol: soluble50mg/mL, clear, colorless |
Vapor Presure | 0.03 mm Hg ( 25 °C) |
Vapor Density | 4.4 (vs air) |
Appearance | Faint beige to brown to salmon red powder |
Specific Gravity | 1.145 |
Color | White to almost white |
Exposure Limit | TLV-TWA 10 ppm (~50 mg/m3) (ACGIH,MSHA, and OSHA); STEL 15 ppm(~75 mg/m3) (ACGIH); IDLH 500 ppm. |
Merck | 14,6370 |
BRN | 1421310 |
Storage Condition | Store below +30°C. |
Explosive Limit | 0.9-5.9%(V) |
Refractive Index | 1.5821 |
Physical and Chemical Properties | Colorless and lustrous monoclinic crystals. There is a strong smell of tar. Easy sublimation at room temperature. insoluble in water, soluble in ether, ethanol, chloroform, carbon disulfide, benzene, etc. |
Use | Mainly used for the production of phthalic anhydride, but also the production of dyes, pharmaceuticals and other raw materials |
Risk Codes | R22 - Harmful if swallowed R40 - Limited evidence of a carcinogenic effect R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R67 - Vapors may cause drowsiness and dizziness R65 - Harmful: May cause lung damage if swallowed R38 - Irritating to the skin R11 - Highly Flammable R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R20 - Harmful by inhalation |
Safety Description | S36/37 - Wear suitable protective clothing and gloves. S46 - If swallowed, seek medical advice immediately and show this container or label. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. 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. S33 - Take precautionary measures against static discharges. S25 - Avoid contact with eyes. S9 - Keep container in a well-ventilated place. |
UN IDs | UN 1334 4.1/PG 3 |
WGK Germany | 3 |
RTECS | QJ0525000 |
TSCA | Yes |
HS Code | 29029010 |
Hazard Class | 4.1 |
Packing Group | III |
Toxicity | Acute oral LD50 for guinea pigs 1,200 mg/kg, mice 533 mg/kg, rats 1,250 mg/kg (quoted, RTECS, 1985). |
colorless and lustrous monoclinic crystals. Flammable. Camphor ball smell, at room temperature is also quite volatile, can sublimate. The relative density is 1. 145 and the melting point is 80. 29 ℃. Boiling point 218 °c. Ignition point 86. Spontaneous ignition point was 526. 11 ℃. Refractive index (12~5)1. 5898. Flash point (Open Cup) 78. 89 °c. Insoluble in water, soluble in ether, ethanol, chloroform, carbon disulfide, benzene, etc. It can also volatilize with water vapor. Form an explosive mixture with air; Explosive limit of 0.9% to 5.9% by volume.
for the basic chemical raw materials, mainly used for the production of phthalic anhydride, various naphthol, naphthylamine, etc., is the production of synthetic resin, plasticizer, rubber antioxidant, surfactant, synthetic fiber, dye, coating, pesticides, medicines and spices and other raw materials.