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Merck

P9333

氯化钾

BioXtra, ≥99.0%

别名:

KCl

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500 G

$292.00

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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.25
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-211-8
MDL number:
Assay:
≥99.0%
Form:
crystalline powder
Solubility:
H2O: 1 M, clear, colorless

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产品名称

氯化钾, BioXtra, ≥99.0%

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

InChI

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

SMILES string

[Cl-].[K+]

product line

BioXtra

assay

≥99.0%

Quality Level

form

crystalline powder

impurities

≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter

mp

770 °C (lit.)

solubility

H2O: 1 M, clear, colorless

density

1.98 g/mL at 25 °C (lit.)

anion traces

sulfate (SO42-): ≤0.003%

cation traces

Al: ≤0.0005%
Ca: ≤0.005%
Cu: ≤0.0005%
Fe: ≤0.0005%
Mg: ≤0.001%
NH4+: ≤0.05%
Na: ≤0.02%
Pb: ≤0.001%
Zn: ≤0.0005%

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此商品
P9541P450460130
assay

≥99.0%

assay

≥99.0%

assay

≥99.0%

assay

≥99.5% (AT)

solubility

H2O: 1 M, clear, colorless

solubility

-

solubility

-

solubility

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

cation traces

Al: ≤0.0005%, Cu: ≤0.0005%, Mg: ≤0.001%, Na: ≤0.02%, Zn: ≤0.0005%, Ca: ≤0.005%, NH4+: ≤0.05%, Fe: ≤0.0005%, Pb: ≤0.001%

cation traces

Fe: ≤3 ppm, heavy metals (as Pb): ≤5 ppm

cation traces

-

cation traces

Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, Mg: ≤10 mg/kg, Mn: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

anion traces

sulfate (SO42-): ≤0.003%

anion traces

-

anion traces

-

anion traces

bromide (Br-): ≤700 mg/kg, iodide (I-): ≤20 mg/kg, phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤30 mg/kg

mp

770 °C (lit.)

mp

770 °C (lit.)

mp

770 °C (lit.)

mp

770 °C (lit.)

Application

可用于磷酸盐缓冲液制备,以及蛋白提取和溶解。
氯化钾已用于:
  • 制备用于磷酸盐钙转染的磷酸盐缓冲液[1]
  • 用作分离胞质和核蛋白的裂解缓冲液的组分[2]
  • 制备从革兰氏阳性菌分离蛋白的磷酸盐缓冲液[3]

General description

氯化钾(KCl)可用于研究离子迁移和钾离子通道。[4]目前确知氯化钾可用于结晶组蛋白核心八聚体。[5]

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Reconstitution of nucleosome core particles from recombinant histones and DNA
Methods in Enzymology, 375(20), 23-44 (2003)
The newly developed monoclonal antibody SA7D6 exhibits potential for detection of Staphylococcus aureus
Senevirathne A and Kim KP
Food Science and Biotechnology, 24(3), 1177-1184 (2015)
Diffusion through channel derivatives of the Escherichia coli FhuA transport protein
Braun M, et al.
European Journal of Biochemistry, 269(20), 4948-4959 (2002)
Increased expression of reticulon 3 in neurons leads to reduced axonal transport of $\beta$ site amyloid precursor protein-cleaving enzyme 1.
Deng M, et al.
The Journal of Biological Chemistry, 288(42), 30236-30245 (2013)
Viriditoxin regulates apoptosis and autophagy via mitotic catastrophe and microtubule formation in human prostate cancer cells.
Kundu S, Kim TH, Yoon JH, et al.
International Journal of Oncology, 45(6), 2331-2340 (2014)

Questions

1–2 of 2 Questions  
  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

      Helpful?

  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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