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Merck
CN

71687

氢氧化钠

BioUltra, suitable for luminescence, ≥98.0% (T), pellets

别名:

氢氧化钠, 碱液, 苛性碱液, 苛性钠, ‘苛性钠’

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关于此项目

线性分子式:
NaOH
化学文摘社编号:
分子量:
40.00
NACRES:
NA.32
PubChem Substance ID:
UNSPSC Code:
12352316
EC Number:
215-185-5
MDL number:
Assay:
≥98.0% (T)
Concentration:
80-100 % (w/w) (sodium hydroxide)
Form:
pellets
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vapor density

>1 (vs air)

Quality Level

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

product line

BioUltra

assay

≥98.0% (T)

form

pellets

mol wt

40.00 g/mol

concentration

80-100 % (w/w) (sodium hydroxide)

technique(s)

cell culture | mammalian: suitable

impurities

insoluble matter, passes filter test, ≤0.0003% total nitrogen (N), ≤0.0005% silicon dioxide (SiO2), ≤1.0% sodium carbonate (Na2CO3)

color

clear colorless

pH

>14 (20 °C, 100 g/L)

bp

1,390 °C/1,013 hPa

mp

318 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

density

2.13 g/cm3

anion traces

chloride (Cl-): ≤70 mg/kg, phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤50 mg/kg

SMILES string

[OH-].[Na+]

cation traces

Ag: ≤5 mg/kg, Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Hg: ≤0.1 mg/kg, K: ≤500 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.015, λ: 280 nm Amax: 0.01

suitability

in accordance for luminescence, suitable for luminescence

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

General description

氢氧化钠,也称为苛性钠或碱液,是一种白色结晶无味的固体,具有腐蚀性,可从空气中吸收水分。当氢氧化钠溶解在水中时,会产生热量点燃可燃物。氢氧化钠以颗粒的形式溶解后,会形成一种无色的液体,密度比水大。

Application

氢氧化钠通常以固体或 50% 的溶液形式使用。它适用于肥皂、造纸、人造丝、石油产品生产的各个阶段。它也被用于通过 FTIR 分析进行碳水化合物研究。用氢氧化钠作为预处理试剂研究酶解。


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

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

存储类别

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

法规信息

危险化学品

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Sang Youn Oh et al.
Carbohydrate research, 340(3), 417-428 (2005-02-01)
Cellulose samples treated with sodium hydroxide (NaOH) and carbon dioxide in dimethylacetamide (DMAc) were analyzed by FTIR spectroscopy. Absorbance of hydrogen-bonded OH stretching was considerably decreased by the treatment of NaOH and carbon dioxide. The relative absorbance ratio (A(4000-2995)/A(993)) represented
Ziyu Wang et al.
Bioresource technology, 101(10), 3583-3585 (2010-01-22)
Coastal Bermuda grass was pretreated with NaOH at concentrations from 0.5% to 3% (w/v) for a residence time from 15 to 90min at 121 degrees C. The pretreatments were evaluated based on total lignin removal and production of total reducing
Konstantinos A Polyzos et al.
Cardiovascular research, 106(2), 295-302 (2015-03-10)
Atherosclerosis is a chronic inflammatory disease that is initiated by the retention and accumulation of low-density lipoprotein in the artery, leading to maladaptive response of cells from the immune system and vessel wall. Strong evidence implicates indoleamine 2,3-dioxygenase (IDO), the



全球贸易项目编号

货号GTIN
71687-500G04061832533025
71687-100G04061832850450