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Merck
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1.04873

Supelco

磷酸二氢钾

for analysis EMSURE® ISO

别名:

磷酸钾 一元, 正磷酸一钾,磷酸二氢钾,磷酸一钾, prim.-磷酸钾, 磷酸二氢钾

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250 G
$55.70
1 KG
$139.00
5 KG
$488.00

$55.70


预计发货时间2025年1月31日详情


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250 G
$55.70
1 KG
$139.00
5 KG
$488.00

About This Item

线性分子式:
KH2PO4
CAS号:
分子量:
136.09
MDL號碼:
分類程式碼代碼:
12352302
酶委員會索引編號:
231-913-4
NACRES:
NA.21
化驗:
≥99.5% dry basis (alkalimetric)
99.5-100.5% (alkalimetric)
形狀:
solid
溶解度:
208 g/L

$55.70


预计发货时间2025年1月31日详情


获取大包装报价

agency

reag. ISO
suitable for SM 5210

品質等級

產品線

EMSURE®

化驗

≥99.5% dry basis (alkalimetric)
99.5-100.5% (alkalimetric)

形狀

solid

效力

>4640 mg/kg LD50, skin (Rabbit)

技術

UV/Vis spectroscopy: suitable

損耗

≤0.2% loss on drying, 110 °C
≤0.2% loss on drying, 130 °C

pH值

4.2-4.6 (20 °C, 20 g/L in H2O)

mp

252.6 °C (lit.)

溶解度

208 g/L

密度

2.338 g/mL at 25 °C (lit.)

體積密度

1200 kg/m3

負離子痕跡

chloride (Cl-): ≤0.0005%
sulfate (SO42-): ≤0.003%

正離子痕跡

As: ≤0.0002%
Cu: ≤0.0003%
Fe: ≤0.0010%
N: ≤0.001%
Na: ≤0.02%
Pb: ≤0.001%
heavy metals (as Pb): ≤0.0010%

儲存溫度

2-30°C

SMILES 字串

[K+].OP(O)([O-])=O

InChI

1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

InChI 密鑰

GNSKLFRGEWLPPA-UHFFFAOYSA-M

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應用


  • β-乳球蛋白稳定纳米乳-影响液滴大小和纳米乳稳定性的配方和工艺因素。:该研究探讨了β-乳球蛋白在纳米乳中的稳定机制,对制药和食品科学具有重要意义,可能利用磷酸一碱钾等物质来稳定和控制pH值(Ali et al., 2016)。

  • 通过反相液相色谱法测定蜂蜜中磺胺噻唑残留。:讨论了一种使用反相液相色谱法检测蜂蜜中磺胺噻唑的方法,强调了分析技术的重要性,这种技术可能涉及用于样品制备和分析的试剂,如磷酸一碱钾(Barry and MacEachern, 1983)。


分析報告

含量(碱定量,以干物质计算):99.5 - 100.5 %
含量测定(碱定量;干物质): ≥ 99.5 %
pH 值(5 %;水):4.2 - 4.5 C
氯化物(Cl): ≤ 0.0005 %
硫酸盐(SO₄): ≤ 0.003 %
总氮(N): ≤ 0.001 %
重金属(以铅计): ≤ 0.0010 %
As(砷): ≤ 0.0002 %
Cu(铜): ≤ 0.0003 %
Fe(铁): ≤ 0.0010 %
Na(钠): ≤ 0.02 %
Pb(铅): ≤ 0.001 %
还原物质:通过测试
干燥失重(110 °C): ≤ 0.2 %
干燥失重 (130 °C): ≤ 0.2 %
符合 ISO

法律資訊

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

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儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


分析证书(COA)

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Questions

1–3 of 3 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/449/386/product-dating-information-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

      Helpful?

  3. Is this product traceability to NIST or ISO 17034

    1 answer
    1. Potassium phosphate monobasic, product 1.04873, is for analysis EMSURE ISO. All EMSURE® products with the designation “ISO” are compliant with ISO 6353. Product 1.04873 is not NIST traceable.

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