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萘用途

【用途一】
合成医药、杀虫剂、香料、染料、橡胶防老剂
【用途二】
主要用于生产苯酐,也是生产染料、医药等的原料
【用途三】
主要用于生产苯酐,也是制备染料、医药、塑料等的基本原料,可用于制造染料中间体、扩散剂、减水剂等
【用途四】
用作溶剂及分析试剂,也用于有机合成
【用途五】
用于皮革防霉,防腐。
【用途六】
萘是农药生产中的一种原料,可以制造成甲萘酚、乙萘酚,也可以氧化成苯二甲酸酐,进一步生成苯二甲酰亚胺,也可以与氯乙酸生成萘乙酸。可作为杀虫剂亚胺硫磷、甲萘威,除草剂灭草松、敌草胺,植物生长调节剂萘乙酸和萘氧乙酸等的中间体。
【用途七】
萘是工业上最重要的稠环烃,主要用于生产苯酐、各种萘酚、萘胺等,是生产合成树脂、增塑剂、染料的中间体、表面活性剂、合成纤维、涂料、农药、医药、香料、橡胶助剂和杀虫剂的原料。萘的用途分配,各国有所不同。用于生产苯酐的大致占70%,用于染料中间体和橡胶助剂的约占15%,杀虫剂的约占6%,鞣革剂的约占4%。美国用于生产杀虫剂的比例较大,主要是用于生产西维因。以萘为原料,经过磺化、硝化、还原、胺化、水解等单元操作,可制得多种中间体。精萘的应用还在拓宽,新产品“超级塑性材料”即萘磺酸盐甲醛缩合物,可用作水泥添加剂,增加混凝土的塑性变形而不降低其强度。今后几年需求量将以5-10%的速度增长。
【用途八】
有机分析中作难溶性染料结晶的溶剂。测定分子量。比色法标准。有机微量分析测定碳和氢的标准。液体闪烁计数中晶体有机闪烁剂。校正温度计。有机合成。
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萘名称

[ CAS 号 ]:
91-20-3

[ 中文名 ]:

[ 英文名 ]:
Naphthalene

[中文别名 ]:

[英文别名 ]:

萘物理化学性质

[ 密度 ]:
1.0±0.1 g/cm3

[ 沸点 ]:
221.5±7.0 °C at 760 mmHg

[ 熔点 ]:
80-82 °C(lit.)

[ 分子式 ]:
C10H8

[ 分子量 ]:
128.171

[ 闪点 ]:
78.9±0.0 °C

[ 精确质量 ]:
128.062607

[ LogP ]:
3.45

[ 外观性状 ]:
白色至类白色晶体,结晶片

[ 蒸汽密度 ]:
4.4 (vs air)

[ 蒸汽压 ]:
0.2±0.2 mmHg at 25°C

[ 折射率 ]:
1.632

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、酸类分开存放

[ 水溶解性 ]:
30 mg/L (25 ºC)

萘MSDS

萘毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QJ0525000
CHEMICAL NAME :
Naphthalene
CAS REGISTRY NUMBER :
91-20-3
LAST UPDATED :
199801
DATA ITEMS CITED :
73
MOLECULAR FORMULA :
C10-H8
MOLECULAR WEIGHT :
128.18
WISWESSER LINE NOTATION :
L66J

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Open irritation test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Human - child
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Human
DOSE/DURATION :
29 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Human - man
DOSE/DURATION :
74 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
490 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>340 mg/m3/1H
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - lacrimation Behavioral - somnolence (general depressed activity)
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>2500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
533 mg/kg
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - ptosis Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
150 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
969 mg/kg
TOXIC EFFECTS :
Behavioral - tremor
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
400 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - cat
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
3 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>20 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
1200 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - changes in motor activity (specific assay)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
10 gm/kg/10D-I
TOXIC EFFECTS :
Liver - other changes Liver - changes in liver weight Biochemical - Metabolism (Intermediary) - lipids including transport
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1680 mg/kg/28D-C
TOXIC EFFECTS :
Endocrine - changes in adrenal weight
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
12450 mg/kg/9W-I
TOXIC EFFECTS :
Liver - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other oxidoreductases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
3738 mg/kg/14D-C
TOXIC EFFECTS :
Blood - changes in spleen Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
11970 mg/kg/90D-C
TOXIC EFFECTS :
Blood - changes in spleen
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
3500 mg/kg/12W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - lymphoma, including Hodgkin's disease Reproductive - Tumorigenic effects - uterine tumors
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
30 ppm/6H/2Y-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Lungs, Thorax, or Respiration - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
4500 mg/kg
SEX/DURATION :
female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - other developmental abnormalities
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
5925 mg/kg
SEX/DURATION :
female 1-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Specific Developmental Abnormalities - cardiovascular (circulatory) system
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
2400 mg/kg
SEX/DURATION :
female 7-14 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - live birth index (measured after birth) Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive)
TYPE OF TEST :
Specific locus test

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Rodent - hamster Ovary
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-410,1992 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-STEL 79 mg/m3 (15 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 52 mg/m3 (10 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW CRTXB2 CRC Critical Reviews in Toxicology. (CRC Press, Inc., 2000 Corporate Blvd., NW, Boca Raton, FL 33431) V.1- 1971- Volume(issue)/page/year: 1(1),93,1971 TOXICOLOGY REVIEW JOPDAB Journal of Pediatrics. (C.V. Mosby Co., 11830 Westline Industrial Dr., St. Louis, MO 63141) V.1- 1932- Volume(issue)/page/year: 59,1,1961 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 10 ppm (50 mg/m3) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,177,1971 OSHA PEL (Gen Indu):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-AUSTRALIA:TWA 10 ppm (50 mg/m3);STEL 15 ppm (75 mg/m3) JAN 1993 OEL-BELGIUM:TWA 10 ppm (52 mg/m3);STEL 15 ppm (79 mg/m3) JAN 1993 OEL-DENMARK:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-FINLAND:TWA 10 ppm (50 mg/m3);STEL 20 ppm (100 mg/m3) JAN 1993 OEL-FRANCE:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-GERMANY:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-HUNGARY:TWA 40 mg/m3;STEL 80 mg/m3;Skin JAN 1993 OEL-THE NETHERLANDS:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-POLAND:TWA 20 mg/m3 JAN 1993 OEL-RUSSIA:STEL 20 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 10 ppm (50 mg/m3);STEL 15 ppm (75 mg/m3) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO NAPHTHALENE-air:10H TWA 10 ppm;STEL 15 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 49600 No. of Facilities: 4341 (estimated) No. of Industries: 71 No. of Occupations: 68 No. of Employees: 44297 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 49600 No. of Facilities: 7209 (estimated) No. of Industries: 83 No. of Occupations: 87 No. of Employees: 112696 (estimated) No. of Female Employees: 5220 (estimated)
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萘安全信息

[ 符号 ]:

GHS02, GHS07, GHS08, GHS09

[ 信号词 ]:
Warning

[ 危害声明 ]:
H228-H302-H351-H410

[ 警示性声明 ]:
P210-P280-P301 + P312 + P330-P370 + P378

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges

[ 危害码 (欧洲) ]:
Xn:Harmful;N:Dangerousfortheenvironment;

[ 风险声明 (欧洲) ]:
R22;R40;R50/53

[ 安全声明 (欧洲) ]:
S36/37-S46-S60-S61-S62-S45-S16-S7

[ 危险品运输编码 ]:
UN 1334 4.1/PG 3

[ WGK德国 ]:
3

[ RTECS号 ]:
QJ0525000

[ 包装等级 ]:
III

[ 危险类别 ]:
4.1

[ 海关编码 ]:
2707400000

萘上下游产品

萘制备

1.由煤焦油分离,高温煤焦油中萘约占8%-12%,将煤焦油蒸馏,切取煤油,经脱酚,脱喹啉,蒸馏得成品萘。每吨萘消耗10t煤焦油。

2.由石油烃制得:催化重质重整油,催化裂化轻循环油,裂解制乙烯的副产焦油等。

3.粗萘经白土精制而得精萘。

4.静态分步结晶法 将原料工业萘装入结晶箱后进行快速降温,降至82℃后转为均匀降温,以2℃/h的降温速度冷却至60℃,排放富含硫茚的第一次晶析萘油,作为中间馏分待后处理。然后结晶箱内的物料以4℃/h的速度升温,间隔0.5h取样一次,测定其结晶点,根据结晶点的不同,分别排入对应馏分槽,如此进行3~4次分步结晶,可得到较高纯度的精萘。

5.降膜分步结晶法 结晶法生产过程由产品生产工艺系统、能源系统、氮气密封系统和计算机控制系统等组成。生产工艺系统以大循环为生产周期,每个大循环包含4个小循环,每个小循环又包含4~6个段,每个段由结晶、部分熔融和全部熔融3个步骤组成。降膜结晶法操作工艺实例:由工业萘装置送来的液态工业萘送入馏分槽中,当进行第四段结晶操作时,用泵将槽中的原料液送入动态结晶器收集槽中。未结晶萘油与发汗液放入纯度低一级的馏分槽中,全熔液可作为第五段的原料。按预定程序进行六段结晶精制后即可得到产品精萘。为提高萘的提取率,可将富含硫茚的馏分送往静态结晶器中处理,静态结晶器所得的产品返回动态结晶系统的相应馏分槽,残液可作为减水剂出售。由于该装置同时采用动态和静态结晶器,既可保证较高的萘回收率,又能降低能耗。

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萘海关

[ 海关编码 ]: 2902902000

[ 中文概述 ]:
2902902000 精萘。监管条件:AB(入境货物通关单,出境货物通关单)。增值税率:17.0%。退税率:9.0%。最低关税:2.0%。普通关税:35.0%

[ Summary ]:
2902902000 naphthalene。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:2.0%。general tariff:35.0%

萘文献

Anti-epidermal growth factor receptor conjugated mesoporous zinc oxide nanofibers for breast cancer diagnostics.

Nanoscale 7(16) , 7234-45, (2015)

We report the fabrication of an efficient, label-free, selective and highly reproducible immunosensor with unprecedented sensitivity (femto-molar) to detect a breast cancer biomarker for early diagnos...

Electrochemical polymerization of pyrene derivatives on functionalized carbon nanotubes for pseudocapacitive electrodes.

Nat. Commun. 6 , 7040, (2015)

Electrochemical energy-storage devices have the potential to be clean and efficient, but their current cost and performance limit their use in numerous transportation and stationary applications. Many...

Layered titanium diboride: towards exfoliation and electrochemical applications.

Nanoscale 7 , 12527-34, (2015)

Layered transition metal diborides (TMDB), amongst other refractory metal borides, are commonly employed for material fabrication such as wear- and corrosion-resistant coatings due to their impressive...


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相关化工产品/化学物质:

推荐生产厂家/供应商:

公司名:上海化源世纪贸易有限公司

区域:上海市普陀区

价格:

联系人:徐经理

产品详情:液相色谱仪检定用标准物质(萘-甲醇溶液)


公司名:上海吉至生化科技有限公司

区域:上海市奉贤区

价格:
¥118.0/500g

联系人:刘佳

产品详情:


公司名:上海阿拉丁生化科技股份有限公司

区域:上海市浦东新区

价格:
¥729.0/5g ¥56.0/1g ¥需询单/1g ¥需询单/1g

联系人:阿拉丁

产品详情:


公司名:广东翁江化学试剂有限公司

区域:韶关市翁源县

价格:
¥32.0/250g ¥1600.0/25kg ¥200.0/500g ¥400.0/250mg

联系人:朱丽丹

产品详情:


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萘供应商


相关化合物

【萘】化源网提供萘CAS号91-20-3,萘MSDS及其说明、性质、英文名、生产厂家、作用/用途、分子量、密度、沸点、熔点、结构式等。CAS号查询萘上化源网,专业又轻松。>>电脑版:

标题:萘_MSDS_用途_密度_萘CAS号【91-20-3】_化源网 地址:https://m.chemsrc.com/mip/cas/91-20-3_825944.html