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Merck
CN

1.04933

氯化钾

for analysis (<= 0.005% Br) EMSURE® ACS,ISO,Reag. Ph Eur

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关于此项目

线性分子式:
KCl
化学文摘社编号:
分子量:
74.55
NACRES:
NA.21
EC Index Number:
231-211-8
UNSPSC Code:
12352302
MDL number:
Assay:
99-100.5% dry basis (silver nitrate titration), 99.5-100.5% (silver nitrate titration)
Grade:
ACS reagent
Form:
solid
Solubility:
water: soluble ((355 g/l at 25 °C (77 °F))
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grade

ACS reagent

Quality Level

agency

reag. ISO, reag. Ph. Eur.

product line

EMSURE®

assay

99-100.5% dry basis (silver nitrate titration), 99.5-100.5% (silver nitrate titration)

form

solid

potency

2600 mg/kg LD50, oral (Rat)

impurities

≤0.005% Insoluble matter

loss

≤1% loss on drying, 105°C

pH

5.5-8.0 (25 °C, 50 g/L in H2O)

bp

1413 °C/1013 hPa

mp

770 °C (lit.)

solubility

water: soluble ((355 g/l at 25 °C (77 °F))

density

1.98 g/mL at 25 °C (lit.)

bulk density

1000 kg/m3

anion traces

bromide (Br-): ≤0.005%, chlorate, nitrate (as NO3-): ≤0.003%, iodide (I-): ≤0.002%passes test, phosphate (PO43-): ≤0.0005%, sulfate (SO42-): ≤0.001%

cation traces

heavy metals: ≤0.0005% (ACS), heavy metals: ≤0.0005%, Ba:, passes test, Ca: ≤0.001%, Fe: ≤0.0002%, Mg: ≤0.0005%, Mg: ≤0.02% (alkaline earth metals (as Ca)), N: ≤0.001%, Na: ≤0.005%

storage temp.

2-30°C

SMILES string

[Cl-].[K+]

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Application

可用于磷酸盐缓冲液制备,以及蛋白提取和溶解。

Analysis Note

Assay (argentometric): 99.5 - 100.5 %
Assay (argentometric; calculated on dried substance): 99.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: = 0.005 %
pH-value (5 %; water): 5.5 - 8.0
Acidity or alkalinity: passes test
Bromide (Br): = 0.005 %
Chlorate and Nitrate (as NO3): = 0.003 %
Iodide (I): = 0.002 % passes test
Phosphate (PO4): = 0.0005 %
Sulfate (SO4): = 0.001 %
Total nitrogen (N): = 0.001 %
Heavy metals (as Pb): = 0.0005 %
Ba (Barium): passes test
Ca (Calcium): = 0.001 %
Fe (Iron): = 0.0002 %
Mg (Magnesium): = 0.0005 %
Na (Sodium): = 0.005 %
heavy metals (ACS) = 0.0005 %
Magnesium and alkaline-earth metals (as Ca): = 0.02 %
Loss on Drying (105°C): = 1.0 %Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany


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存储类别

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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