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Merck
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主要文件

1.04907

Supelco

溴化钾

for IR spectroscopy Uvasol®

别名:

溴化钾, 氢溴酸钾盐

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100 G
$358.00
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预计发货时间2025年8月29日详情


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100 G
$358.00
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About This Item

经验公式(希尔记法):
BrK
CAS号:
分子量:
119.00
MDL编号:
UNSPSC代码:
12352302
EC索引号:
231-830-3
NACRES:
NA.03

$358.00


预计发货时间2025年8月29日详情


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蒸汽压

1.3 hPa ( 795 °C)

质量水平

表单

solid

效能

>2000 mg/kg LD50, oral (Rat)

技术

IR spectroscopy: suitable

pH值(酸碱度)

5.5-8.5 (20 °C, 50 g/L in H2O)

沸点

1435 °C/1013 hPa

mp

730 °C

溶解性

water: soluble (119 g/l at 20 °C (68 °F))

密度

2.75 g/cm3 at 20 °C

堆积密度

900‑1000 kg/m3

应用

general analytical

储存温度

2-30°C

SMILES字符串

[K+].[Br-]

InChI

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

InChI key

IOLCXVTUBQKXJR-UHFFFAOYSA-M

一般描述

溴化钾在近UV到长波IR波段是透明的。在IR光谱中,将难以熔化或溶解在任何合适的IR传输溶剂中的固体样品与溴化钾粉末一起研磨并压成片后进行分析。 该方法对使用过的溴化钾的质量要求很高。将溴化钾Uvasol的平均粒径调整为150 μm。 这足以制备非常好的颗粒,而无需进一步预处理且无相关污染风险。如果在气密条件下保存,它也可以在几年内保持粉末状。通过特殊应用试验检测了其造粒的物理适用性,通过全谱FT-IR分析确定了其化学纯度。

应用


  • A method for lipoprotein (a) Isolation from a small volume of plasma with applications for clinical research.:本文提供一种使用溴化钾分离脂蛋白的方法,对临床研究中的分析应用有重要意义。该方法的准确性令其具备较大的临床诊断应用潜力(Mueller et al., 2022)。

  • Measurement uncertainty of lactase-containing tablets analyzed with FTIR.:本文使用傅里叶变换红外光谱(FTIR)和溴化钾评估对片剂乳糖酶的测量不确定度。说明本品提高药物检测准确性的作用(Paakkunainen et al., 2014)。

  • MCM-41-supported oxo-vanadium(IV) complex: a highly selective heterogeneous catalyst for the bromination of hydroxy aromatic compounds in water.:本文在非均相催化剂的合成中用到溴化钾,说明它在选择性溴化反应中的作用,有益于开发高效的化学合成反应(Bhunia et al., 2011)。

  • Proteomics and lipids of lipoproteins isolated at low salt concentrations in D2O/sucrose or in KBr.:本文研究溴化钾分离所得脂蛋白的蛋白质组学和脂质轮廓,说明它在脂质组学生化研究中提高分离度和准确性的作用(Ståhlman et al., 2008)。

  • Single-drop and nanogram level determination of sulfite (SO3(2-)) in alcoholic and nonalcoholic beverage samples based on diffuse reflectance fourier transform infrared spectroscopic (DRS-FTIR) analysis on KBr matrix.:本文在饮料亚硫酸盐分析中创新地采用溴化钾,体现它的食品饮料质控作用(Verma et al., 2007)。

联系

替代品:PX1378

分析说明

应用程序测试:通过测试
吸光度(2 g压片,层厚0.5 cm)(水;3775-3050/1760-1520 cm⁻¹): ≤ 0.15
吸光度(2 g压片,层厚0.5 cm)(CH化合物;3050-2750 cm⁻¹): ≤ 0.004
吸光度(2 g压片,层厚0.5 cm)(其他;4000-400 cm⁻¹): ≤ 0.020
粒径(d10): ≤ 100 µm
粒径(d50): ≤ 200 µm
粒径(d90): ≤ 500 µm

其他说明

欢迎探索各式各样的实验室安全配件和设备,以安全操作溶剂,在首次使用时就能获得较高的安全水平。

法律信息

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

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


分析证书(COA)

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Questions

1–3 of 3 Questions  
  1. 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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  2. 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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  3. The 1.04907 material is applicable for USP, EP and JP pharmacopeias?

    1 answer
    1. This product is not tested against any pharmacopoeial compendium. Unfortunately, there is no USP, EP, or JP-tested product option currently available.

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