431648
硫化钠 九水合物
≥99.99% trace metals basis
别名:
九水硫化钠
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关于此项目
线性分子式:
Na2S·9H2O
化学文摘社编号:
分子量:
240.18
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
215-211-5
MDL number:
Assay:
≥99.99% trace metals basis
Form:
crystals and lumps
InChI key
UIINQVYGFKNSPA-UHFFFAOYSA-N
InChI
1S/2Na.9H2O.S/h;;9*1H2;
SMILES string
O.O.O.O.O.O.O.O.O.[Na]S[Na]
assay
≥99.99% trace metals basis
form
crystals and lumps
reaction suitability
reagent type: catalyst
core: sodium
impurities
<100 ppm total metallic impurities
anion traces
SO32- and S2O32-: ≤0.1%
cation traces
Fe:, passes test, NH4+: ≤0.005%
storage temp.
2-8°C
Quality Level
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General description
硫化钠九水合物是分子式为Na2S-H2O的化合物。本品为白色至黄色的吸湿固体，极易溶于水，散发强烈臭味。 九水硫化钠一般通过将硫元素溶于氢氧化钠，形成硫化钠。接着在溶液中加入过量的水可得到九水形式，最终形成每个硫化钠带9个水分子的晶体。 九水硫化钠常用作化学反应的还原剂，以及矿业浮选剂。还用于生产染料、色素等化学品。
Application
九水硫化钠（Na2S.9H2O）能与α,ω-二溴和（或）α,ω二氯烷烃合成聚亚烷基硫醚。可作为还原剂，从废气中去除氮氧化物。Na2S.9H2O还能作为平价硫源，合成杂环脱氧硫胺。
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
存储类别
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
法规信息
监管及禁止进口产品
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