应用
In organic chemistry, sodium tungstate is used as catalyst for epoxidation of alkenes and oxidation of alcohols into aldehydes or ketones. Used in examining the serum protein, serum protein-free filtrate. Used as alkaloid precipitating agent. Used in manufacture of metal tungsten, tungstate and tungsten oxide. Waterproof and fireproof fabric.

Grade Specifications
Maximum level of impurities: Insoluble matter 0.01%, Titratable free base 0.02meq/g, Cl 0.005%, Mo 0.001%, SO₄ 0.01%, Heavy metals and iron (as Pb) 0.001%

备注
Keep in cool places.

基本信息

MDL
MFCD00149190

EINECS
236-743-4

分子式
Na₂WO₄?2H₂O

分子量
329.86 (293.83anhy)

熔点
100° -2H{2}O

密度
3.250

灵敏度
Ambient temperatures.

形态
Powder

溶解性
Soluble in water. Insoluble in alcohol.

Merck
14,8698

GHS危害和防范说明

GHS符号

Hazard Statements
H302-H319
Harmful if swallowed.Causes serious eye irritation.

Precautionary Statements
P280i-P264-P305+P351+P338-P301+P312a-P337+P313-P501a
Wear eye/face protection.Wash thoroughly after handling.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.If eye irritation persists: Get medical advice/attention.Dispose of contents/container in accordance with local/regional/national/international regulations.

安全信息

危险类别
22-36
Harmful if swallowed.Irritating to eyes.

安全等级
26-36-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing.This material and its container must be disposed of as hazardous waste

欧盟危险品标志

RTECS
YO7900000

TSCA
是