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Merck

157953

Sigma-Aldrich

连二亚硫酸钠

technical grade

别名:

亚硫酸氢钠, 连二亚硫酸钠

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About This Item

线性分子式:
NaO2SSO2Na
CAS号:
分子量:
174.11
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21

等級

technical grade

品質等級

化驗

≥82.5% (iodometric)

形狀

powder

pH值

7-9 (20 °C, 50 g/L)

溶解度

water: soluble(lit.)

正離子痕跡

heavy metals: ≤0.002%

儲存溫度

room temp

SMILES 字串

[Na+].[Na+].[O-]S(=O)S([O-])=O

InChI

1S/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2

InChI 密鑰

JVBXVOWTABLYPX-UHFFFAOYSA-L

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一般說明

连二亚硫酸钠(Na2S2O4)是白色结晶钠盐。它在大气氧存在下分解产生硫酸氢钠。它是由锌还原亚硫酸溶液中的亚硫酸氢钠制备的。它广泛用于纺织工业中布料染色前的脱色。

應用

在研究中,连二亚硫酸钠可用作还原剂,用于还原氧化石墨。
连二亚硫酸钠被用作通过产生不对称纳米颗粒包封多核苷酸中的荧光猝灭剂。它还以缓冲液的形式用于洗脱参与质谱法(MS)鉴定共价激酶抑制剂细胞靶标的探针标记蛋白。

象形圖

FlameExclamation mark

訊號詞

Danger

危險聲明

危險分類

Acute Tox. 4 Oral - Eye Irrit. 2 - Self-heat. 1

安全危害

儲存類別代碼

4.2 - Pyrophoric and self-heating hazardous materials

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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