1,3-二乙基硫脲

1,3-二乙基硫脲用途

1.可用于硫脲类促进剂，该品亦为丁基胶用促进剂，三元乙丙胶的硫化活性剂。

2.可制得抗张强度、硬度、压缩永久变形等性能良好的氯丁硫化胶。本品与NA-22（亚乙基硫脲）相比，焦烧及硫化均快，但硫化平坦性较好。本品易分散、不喷霜。用量较大时，可进行高温高速硫化，特别适用于压出制品的连续硫化。本品也是丁基胶用促进剂，三元乙丙胶的硫化活性剂。在天然和丁苯胶中能活化噻唑类和次磺胺类促进剂。对于天然胶、氯丁胶、丁腈胶和丁苯胶有抗氧化作用。一般用作制造工业橡胶制品、特种电线、海绵制品等。在氯丁胶料中一般用量为0.25～1份。在天然胶和丁苯胶中用量为0.3～1.5份，并配以0.3～1.5份的促进剂DM。本品还用于配制缓蚀剂Rodine 31A。
3.高效缓蚀剂，可以单独加入酸溶液中用作黑色金属的缓蚀剂，也可与氨基磺酸和柠檬酸配合，制成固体清洗剂。还用于铜溶解促进剂。

4.用作氯丁橡胶和丁苯橡胶胶黏剂的促进剂。硫化及焦烧较促进剂NA-22快，用量大时可进行高温快速硫化，特别适用于压出制品的连续硫化，制品压缩变形小，耐老化性能好。也用作三元乙丙橡胶的硫化活化剂。对天然橡胶、丁腈橡胶、丁苯橡胶及氯丁橡胶等兼有抗氧化作用。操作时易分散，不喷霜，一般用于工业产品、海绵制品及特种电线等。还用作配制缓蚀剂的原料。

1,3-二乙基硫脲名称

[ CAS 号 ]:
105-55-5

[ 中文名 ]:
1,3-二乙基硫脲

[ 英文名 ]:
N,N'-Diethylthiourea

[中文别名 ]:

[英文别名 ]:

1,3-diethylthiourea
MFCD00004925
1,3-Diethyl-2-thiourea
EINECS 203-308-5
N,N‘-Diethylthiourea
DETU

1,3-二乙基硫脲物理化学性质

[ 密度 ]:
1,12 g/cm3

[ 沸点 ]:
169.2ºC at 760 mmHg

[ 熔点 ]:
76-78 °C(lit.)

[ 分子式 ]:
C₅H₁₂N₂S

[ 分子量 ]:
132.22700

[ 闪点 ]:
186 °C

[ 精确质量 ]:
132.07200

[ PSA ]:
56.15000

[ LogP ]:
1.27210

[ 外观性状 ]:
白色至浅黄色的固体

[ 蒸汽压 ]:
1.56mmHg at 25°C

[ 折射率 ]:
1.505

[ 储存条件 ]:
室温，密封

[ 稳定性 ]:
Stable. May be air sensitive. Incompatible with strong oxidizing agents.

[ 水溶解性 ]:
38 g/L (20 ºC)

1,3-二乙基硫脲MSDS

详细MSDS(安全技术说明书)

1,3-二乙基硫脲毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: YS9800000

CHEMICAL NAME :: Urea, 1,3-diethyl-2-thio-

CAS REGISTRY NUMBER :: 105-55-5

BEILSTEIN REFERENCE NO. :: 0773905

LAST UPDATED :: 199710

DATA ITEMS CITED :: 15

MOLECULAR FORMULA :: C5-H12-N2-S

MOLECULAR WEIGHT :: 132.25

WISWESSER LINE NOTATION :: SUYM1&M1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 316 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 :: Rodent - mouse

DOSE/DURATION :: 62 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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 500 mg/kg

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 :: 11 gm/kg/2Y-C

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

MUTATION DATA

TYPE OF TEST :: Morphological transformation

TEST SYSTEM :: Rodent - hamster Embryo

DOSE/DURATION :: 550 mg/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 356,85,1996 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84809 No. of Facilities: 487 (estimated) No. of Industries: 6 No. of Occupations: 8 No. of Employees: 11186 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84809 No. of Facilities: 1141 (estimated) No. of Industries: 24 No. of Occupations: 28 No. of Employees: 11484 (estimated) No. of Female Employees: 739 (estimated)

1,3-二乙基硫脲安全信息

[ 符号 ]:

GHS05, GHS07, GHS08

[ 信号词 ]:
Danger

[ 危害声明 ]:
H302 + H312-H317-H318-H372-H412

[ 警示性声明 ]:
P260-P280-P301 + P312 + P330-P305 + P351 + P338 + P310

[ 靶器官 ]:
Thyroid.

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Faceshields;Gloves

[ 危害码 (欧洲) ]:
Xn:Harmful;

[ 风险声明 (欧洲) ]:
R22;R40

[ 安全声明 (欧洲) ]:
S45-S36/37

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
2

[ RTECS号 ]:
YS9800000

[ 海关编码 ]:
29309070

1,3-二乙基硫脲合成路线

详细合成路线

1,3-二乙基硫脲上下游产品

1,3-二乙基硫脲上游产品

1,3-二乙基硫脲下游产品

1,3-二乙基硫脲制备

1.由乙胺与二硫化碳反应而得。首先将乙胺加入反应釜，在搅拌下加热升温至35～40℃，再一边搅拌一边滴加二硫化碳，在40～45min内滴加完毕。然后加热升温至95℃，保持反应3h。然后降温至50℃出料。产物经冷却、过滤、水洗、干燥，即得成品。产品含量92%，收率80%。

2.乙胺水溶液与二硫化碳在20～30℃条件下进行反应，生成犖乙基二硫代氨基甲酸乙胺盐。该物质在96～100℃分解，放出硫化氢气体后，再经分离、水洗、结晶、粉碎、干燥即得成品。

1,3-二乙基硫脲海关

[ 海关编码 ]: 2930909090

[ 中文概述 ]:
2930909090. 其他有机硫化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%