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Merck

221465

氢氧化钠

ACS reagent, ≥97.0%, pellets

同義詞:

‘苛性钠’

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關於此項目

線性公式:
NaOH
CAS 編號:
1310-73-2
分子量：:
40.00
NACRES:
NA.21
PubChem Substance ID:
329752270
UNSPSC Code:
12352302
EC Number:
215-185-5
MDL number:
MFCD00003548

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產品名稱

氢氧化钠, ACS reagent, ≥97.0%, pellets

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

InChI

1S/Na.H2O/h;1H2/q+1;/p-1

SMILES string

[OH-].[Na+]

grade

ACS reagent

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

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

assay

≥97.0%

form

pellets

technique(s)

cell culture | mammalian: suitable
titration: suitable

impurities

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

Quality Level

200

pH

(ca.> 14 at 100 g/l at 20 °C)

mp

318 °C (lit.)

solubility

water: soluble 1,260 g/L at 20 °C

density

2.13 g/cm3 at 20 °C

anion traces

chloride (Cl-): ≤0.005%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.003%

cation traces

Fe: ≤0.001%
Hg: ≤0.1 ppm
K: ≤0.02%
Ni: ≤0.001%
heavy metals (as Ag): ≤0.002%

application(s)

PFAS testing

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本產品
716903062030620-M
氢氧化钠 ACS reagent, &#8805;97.0%, pellets

Sigma-Aldrich

221465

氢氧化钠

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

Sigma-Aldrich

71690

氢氧化钠

氢氧化钠 puriss. p.a., ACS reagent, reag. Ph. Eur., K &#8804;0.02%, &#8805;98%, pellets

Sigma-Aldrich

30620

氢氧化钠

氢氧化钠 puriss. p.a., ACS reagent, reag. Ph. Eur., K &#8804;0.02%, &#8805;98%, pellets

Sigma-Aldrich

30620-M

氢氧化钠

grade

ACS reagent

grade

ACS reagent, puriss. p.a.

grade

ACS reagent, puriss. p.a.

grade

ACS reagent, puriss. p.a.

assay

≥97.0%

assay

≥98.0% (T)

assay

≥98%

assay

≥98%

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

-

agency

reag. Ph. Eur.

agency

reag. Ph. Eur.

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

form

pellets

form

pellets

form

pellets

form

pellets

solubility

water: soluble 1,260 g/L at 20 °C

solubility

water: soluble 1,260 g/L at 20 °C

solubility

water: soluble 1260 g/L at 20 °C

solubility

water: soluble 1260 g/L at 20 °C

Application

氢氧化钠可用作滴定法[1]、溶出度测定[2]的碱，调节pH[3]值和去除吸气瓶中的酸性气体。[1]
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。[4]
  • 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。[5]
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′-二(磺胺)-4,4′-二(氯乙酰氨基)偶氮苯钠(BSBCA)[6]
  • 制备电解液，以研究电解液组成对电化学还原法将CO2化为CO的影响。[7]
  • 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。[8]
  • ZSMs (zeolite socony mobils)的合成。[9]
氢氧化钠，可用滴定法测定胶体二氧化硅的比表面积。[10]它还可用于硼氢化钠的直接氧化，可用循环伏安法、线性伏安法、计时安培法和计时电位法检测。[11]可用于制备柠檬酸缓冲液和硼酸缓冲液。[12]它可用于合成：
  • 烷基芳基氨基磺酸盐[13]
  • (3 -[4-对辛基苯氧基乙氧基乙氧基]二甲基氨基丙烷磺酸盐(XOSB)[13]
  • 三磺甜菜碱(TriSBn)[13]

General description

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[1]、溶出度测定[2]以及去除吸气瓶中的酸性气体等。[14]它参与由金/木炭或金/石墨催化的甘油氧化。[15]它参与无溶剂醛缩合反应。[16]

Other Notes

查看Redi-Dri™产品清单795429

Legal Information

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

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

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

存儲類別/等級

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCZ9819
MKCZ9820
MKCZ7582
MKCZ5520
MKCZ2339

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您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

Effect of Cations on the Electrochemical Conversion of CO2 to CO.
Thorson MR, et al.
Journal of the Electrochemical Society, 160(1), F69-F74 (2013)
The First Fluoride-Free Hiyama Reaction of Vinylsiloxanes Promoted by Sodium Hydroxide in Water.
Alacid E &amp; Najera C
Advanced Synthesis & Catalysis, 348(15), 2085-2091 (2006)
Satoshi H Namekawa
Journal of visualized experiments : JoVE, (83)(83), e50819-e50819 (2014-01-25)
During testicular germ cell differentiation, the structure of nuclear chromatin dynamically changes. The following describes a method designed to preserve the three-dimensional chromatin arrangement of testicular germ cells found in mice; this method has been termed as the three-dimensional (3D)
Selective oxidation of glycerol to glyceric acid using a gold catalyst in aqueous sodium hydroxide.
Carrettin S, et al.
Chemical Communications (Cambridge, England), 7, 696-697 (2002)
Synthesis of zeolite socony mobil from blue silica gel and rice husk ash as catalysts for hydrothermal liquefaction.
Danardono AES and Mansur FA.
Journal of Engineering Science and Technology, 10(8), 982-993 (2015)
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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