1271-33-6

1271-33-6 - Names and Identifiers

Name	BIS(CYCLOPENTADIENYL)TUNGSTEN DIHYDRIDE
Synonyms	cyclopentane cyclopenta-1,3-diene Tungstanocene dihydride Bis(cyclopentadienyl)dihydrotungsten BIS(CYCLOPENTADIENYL)TUNGSTEN DIHYDRIDE BIS(CYCLOPENTADIENYL)TUNGSTEN(IV) DIHYDRIDE Tungsten,bis(eta5-2,4-cyclopentadien-1-yl)dihydro-
CAS	1271-33-6
EINECS	622-882-1
InChI	InChI=1/2C5H5.W.2H/c21-2-4-5-3-1;;;/h21-5H;;;/q-5;-1;;;/r2C5H5.H2W/c21-2-4-5-3-1;/h21-5H;1H2/q-5;-1

1271-33-6 - Physico-chemical Properties

Molecular Formula	C10H2W
Molar Mass	305.97
Melting Point	115°C(lit.)
Boling Point	41.5°C at 760 mmHg
Flash Point	>230°F
Vapor Presure	418mmHg at 25°C
Appearance	solid
Sensitive	Air & Moisture Sensitive
Physical and Chemical Properties	Sensitivity: Air & motion Sensitive WGK Germany:3

1271-33-6 - Risk and Safety

Risk Codes	R14 - Reacts violently with water R34 - Causes burns R14/15 -
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs	UN 3131 4.3/PG 2
WGK Germany	3
Hazard Class	4.3
Packing Group	III

1271-33-6 - Introduction

Bis (cyclopentadienyl) tungsten dihydride, chemical formula (C5H5)2WH2, is a colorless crystalline solid. It has the following properties:

1. Stability: Bis (cyclopentadiene) tungsten hydride is stable at room temperature and has high thermal stability and chemical stability.

2. Catalysis: Bis (cyclopentadiene) tungsten dihydride is widely used in the field of catalysis and can catalyze a variety of organic reactions, such as hydrogenation reactions, olefin polymerization reactions, etc. It can also be used as a catalyst precursor and has important application value in organic synthesis.

3. metal amino reducing agent: bis (cyclopentadiene) tungsten dihydride can be used as a reducing agent to react with copper sulfate and other compounds to generate the corresponding metal.

The preparation method of bis (cyclopentadienyl) tungsten dihydride is generally prepared by reacting lithium cyclopentadienyl with tungsten hydride. The preparation process needs to pay attention to the control of temperature and atmosphere to ensure the smooth progress of the reaction.

Regarding safety information, bis (cyclopentadiene) tungsten dihydride is a low-toxic compound, but the following aspects still need to be noted:

1. Avoid prolonged contact: Prolonged contact may cause skin and eye irritation, so you should wear appropriate personal protective equipment, such as lab gloves and eye masks, during operation.

2. avoid inhalation: bis (cyclopentadiene) tungsten hydride dust or vapor can cause respiratory system irritation, in order to avoid inhalation, the operation should be equipped with a protective mask or maintain good ventilation conditions.

3. Storage requirements: It should be stored in a sealed container, away from fire and oxidant, and avoid contact with moisture and oxygen in the air.

In general, bis (cyclopentadiene) tungsten dihydride is a compound with a wide range of applications, but safety precautions should be taken during operation and storage.

Last Update：2024-04-10 22:29:15