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795429

Sigma-Aldrich

氢氧化钠

anhydrous, free-flowing, pellets, Redi-Dri, ACS reagent, ≥97%

别名:

‘苛性钠’

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选择尺寸

500 G
¥1,105.16
1 KG
¥1,748.34
2.5 KG
¥2,074.70
12 KG
¥5,053.91

¥1,105.16


国内现货,预计发货时间2025年4月17日详情


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选择尺寸

变更视图
500 G
¥1,105.16
1 KG
¥1,748.34
2.5 KG
¥2,074.70
12 KG
¥5,053.91

About This Item

线性分子式:
NaOH
CAS号:
分子量:
40.00
EC 号:
MDL编号:
UNSPSC代码:
12352316
PubChem化学物质编号:
NACRES:
NA.21

¥1,105.16


国内现货,预计发货时间2025年4月17日详情


获取大包装报价

等级

ACS reagent
anhydrous

质量水平

Agency

suitable for DIN 38407-42
suitable for EPA 1621
suitable for EPA 533
suitable for EPA 8327
suitable for EPA OTM-45
suitable for SM 4500 - NH3

蒸汽密度

>1 (vs air)

蒸汽压

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

产品线

Redi-Dri

方案

≥97%

表单

pellets

质量

free-flowing

杂质

≤0.001% N compounds
≤0.02% NH4OH ppt.
≤1.0% Na2CO3

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此商品
22146571690306576
氢氧化钠 anhydrous, free-flowing, pellets, Redi-Dri&#8482;, ACS reagent, &#8805;97%

795429

氢氧化钠

氢氧化钠 ACS reagent, &#8805;97.0%, pellets

221465

氢氧化钠

氢氧化钠 puriss. p.a., ACS reagent, K &#8804;0.02%, &#8805;98.0% (T), pellets

71690

氢氧化钠

氢氧化钠 pellets, semiconductor grade, 99.99% trace metals basis

306576

氢氧化钠

assay

≥97%

assay

≥97.0%

assay

≥98.0% (T)

assay

99.99% trace metals basis

agency

suitable for DIN 38407-42, suitable for EPA 533, suitable for EPA OTM-45, suitable for EPA 1621, suitable for SM 4500 - NH3, suitable for EPA 8327

agency

suitable for DIN 38407-42, suitable for EPA 1621, suitable for EPA 533, suitable for EPA 8327, suitable for EPA OTM-45, suitable for SM 4500 - NH3

agency

-

agency

-

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

form

pellets

form

pellets

form

pellets

form

pellets

solubility

water: soluble 1260 g/L at 20 °C

solubility

water: soluble 1,260 g/L at 20 °C

solubility

water: soluble 1,260 g/L at 20 °C

solubility

water: soluble 1,260 g/L at 20 °C

一般描述

氢氧化钠(NaOH)又称苛性碱,是一种水溶性无机碱,具有广泛的工业应用,如滴定、溶出度测定以及去除吸气瓶中的酸性气体等。它参与金/木炭或金/石墨催化的甘油氧化反应。参与无溶剂条件下的羟醛缩合反应。

应用

氢氧化钠(NaOH)应用于以下过程:
  • 制备用于蛋白质交联技术的3,3′-双(磺酸基)-4,4′-二(氯乙酰氨基)偶氮苯钠(BSBCA)。
  • 制备电解液,以研究电解液组成对电化学还原法将CO2转化为CO的影响。
  • 制备用于保存睾丸生殖细胞三维染色质结构的三维(3D)载玻片法的CSK(细胞骨架)缓冲液。
  • ZSM(zeolite socony mobil)沸石的合成。


氢氧化钠可用于胶体二氧化硅比表面积的滴定法测定。它可用于硼氢化钠的直接氧化,通过循环和线性伏安法、计时电流法和计时电位法开展研究。可用于制备柠檬酸缓冲液和硼酸缓冲液。

它可用于合成:
  • 烷基芳基氨基磺基甜菜碱
  • (3 -[4-叔辛基苯氧基乙氧基乙氧基乙基]二甲基氨丙烷磺酸酯(XOSB)
  • 三磺基甜菜碱(TriSBn)


氢氧化钠可用作滴定法、溶出度测定的碱,调节pH值和去除吸气瓶中的酸性气体。

它可用于以下过程:
  • 在存在金催化剂的情况下将甘油转化为甘油酸。
  • 钯催化乙烯基烷氧基硅烷与芳基溴或氯化物的交叉偶联反应,以生成苯乙烯。

特点和优势

  • 提高效率——免除需要松散硬化粉末的时间和精力
  • 更加安全——避免使用工具大力敲碎团块的风险
  • 更加经济——制备和溶剂化速度更快,提高效率并节约成本
  • 质量保证——经过专业检测的出色品质,无抗结剂添加
  • 灵活的用量选择——有从研究到放大级别的用量规格可供选择

法律信息

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

象形图

Corrosion

警示用语:

Danger

危险声明

危险分类

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

储存分类代码

8A - Combustible corrosive hazardous materials

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

危险化学品
  • 技术规格说明书

  • 历史批次信息供参考:

    分析证书(COA)

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    商品

    Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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