Merck

S7653

Sigma-Aldrich

氯化钠

BioXtra, ≥99.5% (AT)

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别名:
一氯化钠, 氯化钠, NaCl, 岩盐
线性分子式:
NaCl
CAS号:
分子量:
58.44
Beilstein:
3534976
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.25

产品线

BioXtra

质量水平

检测方案

≥99.5% (AT)

形式

powder

杂质

filtertest, complies
insoluble matter, complies

pH值(酸碱度)

5.0-8.0 (20 °C, 1 M in H2O)

mp

801 °C (lit.)

溶解性

H2O: 1 M, clear, colorless

密度

2.16 g/cm3 at 25 °C (77 °F)

痕量阴离子

bromide (Br-): ≤0.01%
iodide (I-): ≤0.001%
phosphate (PO43-): ≤0.0005%
sulfate (SO42-): ≤0.05%

痕量阳离子

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.002%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0001%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

吸光度

≤0.01 at 260
≤0.01 at 280 in H2O at 1 M

λ

(260 nm Amax: ≤ 0.01)

SMILES string

[Na+].[Cl-]

InChI

1S/ClH.Na/h1H;/q;+1/p-1

InChI key

FAPWRFPIFSIZLT-UHFFFAOYSA-M

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Premium Grade
form

powder

form

powder or crystals

form

powder

form

solid

impurities

filtertest, complies, insoluble matter, complies

impurities

endotoxin, tested

impurities

-

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, ≤0.001% total nitrogen (N)

pH

5.0-8.0 (20 °C, 1 M in H2O)

pH

7

pH

7

pH

5.0-8.0 (25 °C, 1 M in H2O)

mp

801 °C (lit.)

mp

801 °C (lit.)

mp

801 °C (lit.)

mp

801 °C (lit.)

solubility

H2O: 1 M, clear, colorless

solubility

water: soluble 100 mg/mL, clear, colorless

solubility

-

solubility

H2O: 1 M at 20 °C, clear, colorless

一般描述

氯化钠又称石盐,是自然界最常见的矿物质之一。它是一种公认的电解质,可通过控制渗透压和水平衡,维持细胞完整性和体内平衡。由于具有抗菌特性,氯化钠在食品工业广泛用作食品添加剂和防腐剂。还可将其加入实验室缓冲液,增加离子强度。NaCl 也可用于 DNA 提取。钠和氯是生物机能中的主要电解质。

应用

氯化钠已用于:
  • 配制PBS(磷酸盐缓冲盐水)溶液。
  • 气管软骨组织样品脱细胞前的预处理。
  • 作为细菌培养用胰蛋白酶大豆琼脂培养基的成分。
  • 配制裂解缓冲液。
这种物质还可与碳酸氢钠配合使用,以调节体液酸碱平衡。

特点和优势

通过微量元素杂质测试,确保高纯度。

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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