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硫化钨(IV)

硫化钨(IV)用途

一种新型固体润滑剂，适用于高温、高压、高负荷和高真空条件下的润滑。添加在工程塑料中做成自润滑元件，或与某些挥发性溶剂混合后，喷涂于金属表面，在冲锻中用以提高模具的寿命和工件的光洁度。

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硫化钨(IV)名称

[ CAS 号 ]:
12138-09-9

[ 中文名 ]:
二硫化钨

[ 英文名 ]:
tungsten sulfide

[中文别名 ]:

[英文别名 ]:

Tungsten(IV) sulfide
EINECS 235-243-3
Tungsten Sulfide
bis(sulfanylidene)tungsten
MFCD00011467

硫化钨(IV)物理化学性质

[ 密度 ]:
7.5 g/mL at 25 °C(lit.)

[ 熔点 ]:
1480ºC

[ 分子式 ]:
S₂W

[ 分子量 ]:
247.97000

[ 精确质量 ]:
247.89500

[ PSA ]:
64.18000

[ LogP ]:
1.29640

[ 外观性状 ]:
暗灰色粉末

[ 储存条件 ]:
室温，干燥

硫化钨(IV)MSDS

详细MSDS(安全技术说明书)

硫化钨(IV)安全信息

[ 符号 ]:

GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H315-H319-H335

[ 警示性声明 ]:
P261-P305 + P351 + P338

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

[ 危害码 (欧洲) ]:
Xi: Irritant;

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
26-37/39

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

[ WGK德国 ]:
-

硫化钨(IV)制备

1.焙烧分解法钨酸与氨水在57～60℃搅拌下反应3 h，保温自然沉降16h以上，生成的钨酸铵再与硫化氢气体反应，生成四硫代钨酸铵经高温焙烧，分解为二硫化钨。其

2.钨与液态硫反应极缓慢。通硫蒸气于红热的钨可形成WS2。钨与化学计量的硫华混合，在氮气氛中于800℃反应24h，可形成WS2，如在6MPa与1800℃下反应，可形成正交晶型WS2。

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硫化钨(IV)文献

Catalytic and charge transfer properties of transition metal dichalcogenides arising from electrochemical pretreatment.

ACS Nano 9 , 5164-79, (2015)

Layered transition metal dichalcogenides (TMDs) have been the center of attention in the scientific community due to their properties that can be tapped on for applications in electrochemistry and hyd...

Tungsten disulfide nanosheet and exonuclease III co-assisted amplification strategy for highly sensitive fluorescence polarization detection of DNA glycosylase activity.

Anal. Chim. Acta 887 , 216-23, (2015)

Herein, we introduced a tungsten disulfide (WS2) nanosheet and exonuclease III (Exo III) co-assisted signal amplification strategy for highly sensitive fluorescent polarization (FP) assay of DNA glyco...

A sensitive fluorescence turn-on assay of bleomycin and nuclease using WS2 nanosheet as an effective sensing platform.

Anal. Chim. Acta 866 , 84-9, (2015)

As an important antitumor drug, bleomycin (BLM) is widely used in the treatment of a variety of cancers. In addition, nucleases play a crucial role in DNA replication, recombination and repair which a...

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