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Naphthalene

description naphthalene poisoning

CAS No. 91-20-3
Chemical Name: Naphthalene
Synonyms: Naftalen;whitetar;NAPHTHENE;NAPTHALIN;mighty150;mightyrd1;mothballs;White tar;Albocarbon;NAPHTHALIN
CBNumber: CB2472212
Molecular Formula: C10H8
Formula Weight: 128.17
MOL File: 91-20-3.mol
Naphthalene Property
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
Fp : 174 °F
storage temp. : APPROX 4°C
solubility : methanol: soluble50mg/mL, clear, colorless
explosive limit: 0.9-5.9%(V)
Water Solubility : 30 mg/L (25 ºC)
Merck : 14,6370
BRN : 1421310
CAS DataBase Reference: 91-20-3(CAS DataBase Reference)
NIST Chemistry Reference: Naphthalene(91-20-3)
EPA Substance Registry System: Naphthalene(91-20-3)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
TSCA : Yes
HazardClass : 4.1
PackingGroup : III
HS Code : 29029010
Hazardous Substances Data: 91-20-3(Hazardous Substances Data)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H228 Flammable solid Flammable solids Category 1
Category 2
Danger
Warning
P210, P240,P241, P280, P370+P378
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P201 Obtain special instructions before use.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240 Ground/bond container and receiving equipment.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P331 Do NOT induce vomiting.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to..…

Naphthalene Chemical Properties,Usage,Production

description
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.
Naphthalene is an important hydrocarbon raw material and is primarily used to manufacture phthalic anhydride and polyvinyl chloride (PVC) plastics, but is also used in moth repellents and toilet deodorant blocks.
Exposure to naphthalene is associated with hemolytic anemia, damage to the liver and neurological system, cataracts and retinal hemorrhage. Naphthalene is reasonably anticipated to be a human carcinogen and may be associated with an increased risk of developing laryngeal and colorectal cancer.
Hemolytic anemia has been reported in infants born to mothers who "sniffed" and ingested naphthalene (as mothballs) during pregnancy. Available data are inadequate to establish a causal relationship between exposure to naphthalene and cancer in humans. EPA has classified naphthalene as a Group C, possible human carcinogen.
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.
naphthalene poisoning
Naphthalene is a white solid substance with a strong smell. Poisoning from naphthalene destroys or changes red blood cells so they cannot carry oxygen. This can cause organ damage.
In humans, naphthalene is broken down to alpha-naphthol, which is linked to the development of hemolytic anemia. Kidney and liver damage may also occur. Alpha-naphthol and other metabolites are excreted in urine.
In animals, naphthalene breaks down into other compounds including alpha-naphthol, which may affect the lungs and eyes. Naphthalene was found in the milk of exposed cows, but the residues disappeared quickly after the cows were no longer exposed. Nearly all the naphthalene was broken down into other compounds and excreted in their urine.
References
http://npic.orst.edu/factsheets/naphgen.html
Naphthalene is made from crude oil or coal tar. It is also produced when things burn, so naphthalene is found in cigarette smoke, car exhaust, and smoke from forest fires. It is used as an insecticide and pest repellent. Naphthalene was first registered as a pesticide in the United States in 1948.
Chemical Properties
white to almost white crystals, crystalline flakes
Uses
Naphthalene was used in liquid-phase exfoliation of graphite in organic solvents for the production of graphene sheets. It was used in preparation of carbon-coated Si 70 Sn 30 nanoparticles. It was used as fluorescent probe to study the aggregation behavior of sodium cholate. It was used to investigate influence of added short chain linear and branched alcohols on the binding of 1:1 complex of naphthalene and β-cyclodextrin.
Air & Water Reactions
Highly flammable. Insoluble in water.
Reactivity Profile
Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as Naphthalene, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction. Naphthalene, camphor, glycerol, or turpentine will react violently with chromic anhydride [Haz. Chem. Data 1967. p 68]. Friedel-Crafts acylation of Naphthalene using benzoyl chloride, catalyzed by AlCl3, must be conducted above the melting point of the mixture, or the reaction may be violent [Clar, E. et al., Tetrahedron, 1974, 30, 3296].
Health Hazard
Fire may produce irritating and/or toxic gases. Contact may cause burns to skin and eyes. Contact with molten substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.
Fire Hazard
Flammable/combustible material. May be ignited by friction, heat, sparks or flames. Some may burn rapidly with flare burning effect. Powders, dusts, shavings, borings, turnings or cuttings may explode or burn with explosive violence. Substance may be transported in a molten form at a temperature that may be above its flash point. May re-ignite after fire is extinguished.
Naphthalene Preparation Products And Raw materials
Raw materials
Indene ETHYLENE Biphenyl COAL TAR Technical naphthalene DODECYLBENZENE COAL TAR 1,2,3,4-Tetrahydronaphthalene PETROLEUM ETHER KAOLIN Phenol oil
Preparation Products
1,4,5,8-Naphthalenetetracarboxylic acid 1-Naphthol Peri acid Vat Yellow 4 disodium methylenebisnaphthalenesulphonate DIBENZANTHRONE Linolenic acid BUTYLNAPHTHALENESULFONIC ACID SODIUM SALT 1-Nitronaphthalene 1,5-Dihydroxy naphthalene Vat Brown 5 Tannic acid BARIUM DINONYLNAPHTHALENESULFONATE Vat Yellow 2 SEC-BUTYLAMINE 1-Naphthalene acetic acid 2-Amino-4,8-naphthalenedisulfonic acid 2,6-DIMETHYLNAPHTHALENE 2-Methylbutane dispersing agent CNF 1-Aminonaphthalene-6-sulfonic acid NAPHTHENIC ACID Dispersing agent DN Phthalic anhydride 5-Amino-1-naphthalenesulfonic acid Slushing agent,high efficiency Sodium poly[(naphthaleneformaldehyde)sulfonate] 1-Iodonaphthalene 1,5-Naphthalenedisulfonic acid Benzoic acid 1-Aminonaphthalene Slushing agent synthetic fiber oil QDC-201 2-Naphthol 1-Naphthol-5-sulfonic acid 1'-Acetonaphthone
Naphthalene Suppliers      Global( 249)Suppliers     
Supplier Tel Fax Email Country ProdList Advantage
Shanghai Macklin Biochemical Co.,Ltd. 15221275939
021-51821727 shenlinxing@macklin.cn China 13254 55
Hangzhou QiFei Chemical Co., Ltd. 0571-28950939 18058801870 13661490451
0571-28950939 hzqifeihuagong@163.com China 91 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96832 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40403 62
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 3bsc@sina.com China 15950 69
future industrial shanghai co., ltd 021-61552785,400-0066-400
021-55660885 sales@jonln.com China 2091 65
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30315 84
TCI (Shanghai) Development Co., Ltd. 800-988-0390
021-67121385 sales@tcishanghai.com.cn China 22833 81
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 info@energy-chemical.com China 44198 61
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
+86-10-82967029 sales@ouhechem.com China 10814 60
 
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'LGC' (2402) 'LGC' (2603) 1-NAPHTHALENE Arenes Biochemicals and Reagents Analytical Standards Building Blocks BioChemical Analytical Chromatography Product Catalog 91-20-3 TAR CAMPHOR NAPTHALENE NAPTHALIN NAPHTHENE NAPHTHALENE NAPHTHALIN Detection Alphabetic Fluorescent Probes, Labels, Particles and Stains NA - NI Organic Building Blocks Albocarbon Camphor tar camphortar Dezodorator Mighty 150 Mighty rd1 mighty150 mightyrd1 Moth balls Moth flakes mothballs mothflakes Naftalen naftalen(polish) naphtalene naphthalene,crude Naphthaleneball Naphthaline Napthalene, molten NCI-C52904 Rcra waste number U165 rcrawastenumberu165 White tar whitetar Standard Solution of Volatile Organic Compounds for Water & Soil Analysis Standard Solutions (VOC) Melting point standard naphthalene naphthalene, pure REFINED NAPTHALENE POWDER NAPTHALENE FLAKES. (REFINED) NAPTHALENE CRUDE GREY FLAKES NAPTHALENE CRUDE REFINED NAPHTALENE POWDER CRUDE NAPHTHALENE Naphthalene, refined NAPHTHALENE, 99+%, SCINTILLATION GRADE NAPHTHALENE WHITE, PURE
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