二氯甲烷_MSDS_用途_密度_二氯甲烷CAS号【75-09-2】

【用途一】
用作溶剂，也用于有机合成
【用途二】
是不燃性低沸点溶剂，作醋酸纤维素成膜、气溶胶和抗菌素、维生素生产中的溶剂，也用作萃取剂、金属清洗剂等
【用途三】
二氯甲烷是杀菌剂腈菌唑和咪菌唑生产的原料，也是一种很好的溶剂。
【用途四】
萃取溶剂。如用于萃取咖啡豆中的咖啡因。并用作酒花、香辛料油树脂等抽提溶剂。色素稀释剂。
【用途五】
该品除用于有机合成外，还广泛用作醋酸纤维素成膜，三醋酸纤维素抽丝，石油脱蜡，气溶胶和抗生素、维生素、甾族化合物生产中的溶剂，以及金属表面漆层清洗脱脂及脱膜剂。此外，还用于谷物熏蒸和低压冷冻机及空调装置的制冷。在聚醚型尿烷泡沫塑料生产中用作辅助发泡剂，以及用作挤压聚砜型泡沫塑料的发泡剂。

[ 密度 ]:
1.3±0.1 g/cm3

[ 沸点 ]:
39.6±0.0 °C at 760 mmHg

[ 熔点 ]:
-97 °C

[ 分子式 ]:
CH₂Cl₂

[ 分子量 ]:
84.933

[ 闪点 ]:
-14.1±22.4 °C

[ 精确质量 ]:
83.953354

[ LogP ]:
1.19

[ 外观性状 ]:
一种无色液体带有一种甜的,渗透的,像醚的气味

[ 蒸汽密度 ]:
2.9 (vs air)

[ 蒸汽压 ]:
448.0±0.0 mmHg at 25°C

[ 折射率 ]:
1.398

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、硝酸分开存放

[ 水溶解性 ]:
20 g/L (20 ºC)

详细MSDS(安全技术说明书)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: PA8050000

CHEMICAL NAME :: Methane, dichloro-

CAS REGISTRY NUMBER :: 75-09-2

BEILSTEIN REFERENCE NO. :: 1730800

LAST UPDATED :: 199712

DATA ITEMS CITED :: 119

MOLECULAR FORMULA :: C-H2-Cl2

MOLECULAR WEIGHT :: 84.93

WISWESSER LINE NOTATION :: G1G

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: Standard Draize 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 :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

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

DOSE/DURATION :: 357 mg/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - paresthesis Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Human

DOSE/DURATION :: 500 ppm/1Y-I

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - somnolence (general depressed activity) Cardiac - change in rate

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Human

DOSE/DURATION :: 500 ppm/8H

TOXIC EFFECTS :: Behavioral - euphoria

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1600 mg/kg

TOXIC EFFECTS :: Behavioral - ataxia

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 52 gm/m3

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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 916 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 :: Intratracheal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 350 mg/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi Lungs, Thorax, or Respiration - acute pulmonary edema

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5350 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 - mouse

DOSE/DURATION :: 14400 ppm/7H

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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 437 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 :: 6460 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 :: Unreported

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 4770 mg/kg

TOXIC EFFECTS :: Gastrointestinal - ulceration or bleeding from stomach Gastrointestinal - ulceration or bleeding from small intestine

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 3 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 14108 ppm/7H

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - miosis (pupillary constriction) Vascular - BP lowering not characterized in autonomic section Lungs, Thorax, or Respiration - dyspnea

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 950 mg/kg

TOXIC EFFECTS :: Liver - liver function tests impaired

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: 43400 mg/m3/4.5H

TOXIC EFFECTS :: Behavioral - general anesthetic Behavioral - ataxia Nutritional and Gross Metabolic - body temperature decrease

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1900 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 10000 ppm/7H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2700 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 :: Unreported

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1225 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 5000 ppm/2H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 91 gm/kg/2Y-C

TOXIC EFFECTS :: Behavioral - fluid intake Liver - fatty liver degeneration Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3700 ppm/5H/4W-I

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5000 ppm/24H/14W-C

TOXIC EFFECTS :: Liver - other changes Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Kidney, Ureter, Bladder - changes in bladder weight

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 8400 ppm/6H/13W-I

TOXIC EFFECTS :: Liver - changes in liver weight Related to Chronic Data - death

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 44 mg/m3/24H/96D-C

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 39270 mg/kg/17W-I

TOXIC EFFECTS :: Liver - other changes Liver - changes in liver weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1862 mg/kg/2W-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis)

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 13000 ppm/6H/19D-I

TOXIC EFFECTS :: Related to Chronic Data - death

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 150 ppm/24H/30D-C

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - changes in spleen weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other esterases

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5000 ppm/24H/7D-C

TOXIC EFFECTS :: Liver - changes in liver weight Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 300 ppm/24H/90D-C

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - changes in spleen weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other esterases

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 1000 ppm/24H/7W-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Musculoskeletal - other changes Related to Chronic Data - death

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: 5000 ppm/24H/32D-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 552 ppm/6H/5D-I

TOXIC EFFECTS :: Liver - other changes Biochemical - Metabolism (Intermediary) - lipids including transport

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3500 ppm/6H/2Y-I

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Endocrine - tumors

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2000 ppm/5H/2Y-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Lungs, Thorax, or Respiration - tumors

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 4500 ppm/24H

SEX/DURATION :: female 1-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Newborn - behavioral

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 1250 ppm/7H

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Specific Developmental Abnormalities - urogenital system

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 1250 ppm/7H

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :: Sex chromosome loss and nondisjunction

TYPE OF TEST :: DNA damage

TYPE OF TEST :: Micronucleus test

TYPE OF TEST :: DNA damage

TYPE OF TEST :: Cytogenetic analysis

TYPE OF TEST :: Sister chromatid exchange

MUTATION DATA

TYPE OF TEST :: Mutation in mammalian somatic cells

TEST SYSTEM :: Rodent - hamster Ovary

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 367,143,1996 *** REVIEWS *** ACGIH TLV-Animal 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-TWA 174 mg/m3 (50 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 IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 41,43,1986 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 41,43,1986 IARC Cancer Review:Group 2B IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,194,1987 TOXICOLOGY REVIEW FAZMAE Fortschritte der Arzneimittelforschung. Progress in Drug Research. (Birkhauser Boston, Inc., c/o Springer-Verlag New York, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1959- Volume(issue)/page/year: 18,365,1974 *** 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 500 ppm (1750 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: 3,171,1971 OSHA PEL (Gen Indu):8H TWA 500 ppm;CL 1000 ppm;Pk 2000 ppm/5M/2H 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):see 56 FR 57036 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 500 ppm (1740 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 500 ppm (1740 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-AUSTRALIA:TWA 100 ppm (350 mg/m3);Carcinogen JAN 1993 OEL-AUSTRIA:TWA 100 ppm (360 mg/m3) JAN 1993 OEL-BELGIUM:TWA 50 ppm (174 mg/m3);Carcinogen JAN 1993 OEL-DENMARK:TWA 50 ppm (175 mg/m3);Skin;Carcinogen JAN 1993 OEL-FINLAND:TWA 100 ppm (350 mg/m3);STEL 250 ppm (870 mg/m3) JAN 1993 OEL-FRANCE:TWA 100 ppm (360 mg/m3);STEL 500 ppm (1800 mg/m3) JAN 1993 OEL-GERMANY:TWA 100 ppm (360 mg/m3);Carcinogen JAN 1993 OEL-HUNGARY:STEL 10 mg/m3;Carcinogen JAN 1993 OEL-JAPAN:TWA 100 ppm (350 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 100 ppm (350 mg/m3);STEL 500 ppm JAN 1993 OEL-THE PHILIPINES:TWA 500 ppm (1740 mg/m3) JAN 1993 OEL-POLAND:TWA 50 mg/m3 JAN 1993 OEL-RUSSIA:TWA 100 ppm;STEL 50 mg/m3 JAN 1993 OEL-SWEDEN:TWA 35 ppm (120 mg/m3);STEL 70 ppm (250 mg/m3);Skin JAN 1993 OEL-SWITZERLAND:TWA 100 ppm (360 mg/m3);STEL 500 ppm JAN 1993 OEL-THAILAND:TWA 500 mg/m3;STEL 1000 mg/m3 JAN 1993 OEL-TURKEY:TWA 500 ppm (1740 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 100 ppm (350 mg/m3);STEL 250 ppm 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 METHYLENE CHLORIDE-air:CA lowest feasible concentration 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 - 47270 No. of Facilities: 89025 (estimated) No. of Industries: 374 No. of Occupations: 192 No. of Employees: 975696 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 47270 No. of Facilities: 87086 (estimated) No. of Industries: 363 No. of Occupations: 212 No. of Employees: 1438196 (estimated) No. of Female Employees: 352536 (estimated)

[ 符号 ]:

GHS07, GHS08

[ 信号词 ]:
Warning

[ 危害声明 ]:
H315-H319-H335-H336-H351-H373

[ 警示性声明 ]:
P261-P281-P305 + P351 + P338

[ 靶器官 ]:
Blood, Central nervous system, Liver

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US)

[ 危害码 (欧洲) ]:
Xn:Harmful

[ 风险声明 (欧洲) ]:
R40

[ 安全声明 (欧洲) ]:
S23-S24/25-S36/37-S45-S16-S7

[ 危险品运输编码 ]:
UN 1593 6.1/PG 3

[ WGK德国 ]:
2

[ RTECS号 ]:
PA8050000

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

[ 海关编码 ]:
2903120001

详细合成路线

二氯甲烷上游产品

二氯甲烷下游产品

1.甲烷氯化法：将甲烷、氯气与循环气混合后，送入反应器，于380～400℃进行热氯化反应。气体反应产物经冷却器冷却至70～80℃后，送入氯化氢吸收塔，用水吸收除去气体产物中的氯化氢，再送入碱洗塔，用碱液中和除去残留的盐酸和游离氯。经过净化后的气体产物经压缩、冷却、冷凝为粗氯化物。粗氯化物送入蒸馏工序，经各个蒸馏塔分别蒸出氯甲烷，二氯甲烷和三氯甲烷，不凝气除一部分放空外，其余与新料混合循环使用。控制操作条件为反应温度400～420℃，配料比CH4∶Cl2=4∶1，可得以二氯甲烷为主的产品。

2.甲醇氨化法：甲醇在气化器中气化后，同后续反应分离出的氯化氢混合，经催化剂氧化铝或以活性炭或浮石为载体的氯化亚酮或氯化锌，也可用载于活性炭上的磷酸为催化剂，在加氢氯化器中于350℃进行反应，生成氯甲烷。气态反应产物在水洗塔或碱洗塔中分别用冷水和氢氧化钠溶液洗涤，除去未反应的甲醇和氯化氢后，送入脱氢塔，用硫酸再次洗涤除去反应过程中生成的二甲醚和水，得到氯甲烷。氯甲烷与氯气在410～420℃反应，生成二氯甲烷和三氯甲烷，同时还生成少量四氯化碳。经骤冷，分成含二氯乙烷的液相和含未冷凝的氯化氢，未反应的氯甲烷，氯气的气相。气相分离出氯化氢、氯甲烷和氯气分别循环使用。液相先送入吸收塔用稀碱和水洗涤，除去四氯化碳，再送入精馏塔通过共沸蒸馏和精馏，分别获得二氯甲烷和三氯甲烷。

3.氯甲烷氯化氯甲烷氯化分光氯化和热氯化两种工艺。
光氯化是将氯甲烷与氯气在4000kW光照下进行反应，反应产物经碱洗、压缩、冷凝、干燥、精馏而得成品。
热氯化是将氯甲烷与氯气按(2～2.5)∶1(质量)配料，于反应温度为400℃，反应压力为0.2MPa下进行反应。反应产物经水洗、碱洗、压缩、冷凝、干燥、精馏而得成品。

4.以工业品二氯甲烷为原料，用原料体积的1／8～1／10的浓硫酸洗涤数次至酸层无色，再用5%的氢氧化钠溶液洗涤一次，用量为原料体积的1／5，用水洗涤二次。然后用无水氯化钙干燥，吸出清液后蒸馏，收集中间馏分，即得二氯甲烷纯品。

[ 海关编码 ]: 2903120001

Urinary metabolic fingerprinting of mice with diet-induced metabolic derangements by parallel dual secondary column-dual detection two-dimensional comprehensive gas chromatography.

J. Chromatogr. A. 1361 , 265-76, (2014)

This study investigates the potential of a parallel dual secondary column-dual detection two-dimensional comprehensive GC platform (GC×2GC-MS/FID) for metabolic profiling and fingerprinting of mouse u...

Synergistic activity of tenofovir and nevirapine combinations released from polycaprolactone matrices for potential enhanced prevention of HIV infection through the vaginal route.

Eur. J. Pharm. Biopharm. 88(2) , 406-14, (2014)

Polycaprolactone (PCL) matrices were simultaneously loaded with the antiviral agents, tenofovir (TFV) and nevirapine (NVP), in combination to provide synergistic activity in the prevention of HIV tran...

Aqueous-core PEG-coated PLA nanocapsules for an efficient entrapment of water soluble anticancer drugs and a smart therapeutic response.

Eur. J. Pharm. Biopharm. 89 , 30-9, (2015)

Novel PEGylated PLA nanocapsules (PEG-AcPLA nanocapsules), loading high percentage of water soluble drugs have been formulated by using multiple emulsion technique without using conventional stabilize...

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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：
￥需询单/1mg ￥需询单/1g ￥需询单/1g ￥需询单/1g

联系人：阿拉丁

产品详情：二氯甲烷

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：
￥568.0/4l ￥需询单/1mg ￥68.0/500ml ￥118.0/100ml

联系人：刘佳

产品详情：二氯甲烷

公司名：中山市迪欣化工有限公司

区域：中山市三角镇

价格：
￥15.0/250kg

联系人：陈雪萍

产品详情：二氯甲烷

公司名：山东金悦源新材料有限公司

区域：济南市天桥区

价格：
￥500.0/250kg ￥2000.0/1ton

联系人：王思兵

产品详情：二氯甲烷

公司名：济南世纪通达化工有限公司

区域：济南市天桥区

价格：
￥3500.0/1ton ￥7000.0/2ton

联系人：王经理

产品详情：二氯甲烷

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二氯甲烷是极性分子还是非极性分子？

2019-07-18 17:43:19

二氯甲烷，CH2Cl2是极性分子，没有同分异构体，因为C周围的4个原子呈四面体分布，是空间的。CH2Cl2是四面体，不是正四面体，因为C-H与C-Cl距离不等CH4，CCl4是正四面体。因为是四面体结构，没有对称中心DCE非极性，以能量最稳定的全交叉构象看，有一个对称中心，偶极距=0，跟C-H，C...

二氯甲烷

二氯甲烷用途

二氯甲烷名称

二氯甲烷物理化学性质