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亚硫酸氢钠

英文名: sodium hydrogensulfite

CAS: 7631-90-5      分子式: HNaO3S

分子量: 104.06100

别名:


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描述

Sodium bisulfite (chemical formula: NaHSO3), white crystalline powder, sulfur dioxide odor, soluble in water, also slightly soluble in alcohol. It is easily oxidized to sulfate in the air. Sodium bisulfite reacts with active aldehydes and ketones to produce sodium bisulfite additive. The reaction can be used to avoid the use of highly toxic HCN of carbonyl and HCN, by adding carbonyl compounds and sodium bisulfite, and then adding the amount of NACN. Can be prepared by pyrosulfite sodium sulfate, chemical formula: NA2S2O5 (s) +H2O (L) →2NAHSO3 (aq)

基本信息
英文名:
sodium hydrogensulfite
CAS号.:
7631-90-5
别名:
sodium,hydrogen sulfite; Sodium bisulfite;
分子式:
HNaO3S
分子量:
104.06100
PSA:
79.57000
LogP:
0.20420
物化属性
外观:
White powder
密度:
1.48
熔点:
150 °C
沸点:
闪点:
储存条件:
Warehouse Ventilation Low Temperature drying
安全信息
符号:
GHS05 GHS07
信号词:
Dangerous
危害声明:
H302; H318
警示性声明:
P280; P301 + P312 + P330; P305 + P351 + P338 + P310
海关编码:
2832200000
WGK Germany:
1
危险类别码:
R22; R31
安全说明:
S26-S39-S46-S25
危险品标志:
Xn
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