跳转至内容
Merck
所有图片(3)

主要文件

查看所有文档

338818

Sigma-Aldrich

氢氧化铵 溶液

28% NH3 in H2O, ≥99.99% trace metals basis

别名:

氨水, 阿摩尼亚水

登录查看公司和协议定价

选择尺寸

5 ML
$97.60
100 ML
$200.00
1 L
$939.00

$97.60

请联系客服了解存货情况
获取大包装报价
所有图片(3)

选择尺寸

变更视图
5 ML
$97.60
100 ML
$200.00
1 L
$939.00

About This Item

线性分子式:
NH4OH
CAS号:
1336-21-6
分子量:
35.05
Beilstein:
3587154
MDL號碼:
MFCD00066650
分類程式碼代碼:
12352106
eCl@ss:
38060103
PubChem物質ID:
329754690
NACRES:
NA.21

$97.60

请联系客服了解存货情况
获取大包装报价

品質等級

100

化驗

≥99.99% trace metals basis

形狀

liquid

expl. lim.

27 %

濃度

28% NH3 in H2O

pH值

11.7 (20 °C)

密度

0.9 g/mL at 25 °C (lit.)
0.9 g/mL at 25 °C

儲存溫度

2-8°C

SMILES 字串

[NH4+].[OH-]

InChI

1S/H3N.H2O/h1H3;1H2

InChI 密鑰

VHUUQVKOLVNVRT-UHFFFAOYSA-N

正在寻找类似产品? 访问 产品对比指南

相关类别

一般說明

氢氧化铵溶液又称阿摩尼亚水、一水合氨或氨水。它是一种弱碱，主要用作氮源用于制备其他含氮的有机和无机化学品，比如尿素、碳酸铵、硫酸铵等。

應用

氢氧化铵溶液（28% NH3 的H2O溶液）可用作：
  • 通过使用二价或三价铁盐作为铁前体的改良可控化学共沉淀法制备磁性（Fe3O4）纳米颗粒的介质。      
  • 氨解反应的试剂。      
  • 通过一锅法缩合醛和乙酰乙酸烷基酯合成1，4 二氢吡啶的溶剂。

訊號詞

Danger

危險聲明

H314,H335,H410

危險分類

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

8B - Non-combustible corrosive hazardous materials

水污染物質分類（WGK）

WGK 2

閃點（°F）

Not applicable

閃點（°C）

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCV7177
MKCW8983
0000268851
MKCT5941
0000268851

没有发现合适的版本？

如果您需要特殊版本，可通过批号或批次号查找具体证书。

搜索COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

Shelley Stafford et al.
Nanomaterials (Basel, Switzerland), 8(12) (2018-12-16)
In this work, new magnetic-plasmonic nanocomposites have been developed through the use of two complementary polyelectrolytes⁻polystyrene sulfonate (PSS) and poly(allylamine hydrochloride) (PAH). PSS, a negatively charged polyelectrolyte, was utilized as a stabiliser for magnetite nanoparticles, and PAH, a positively charged
Konstantin Chingin et al.
Analytical chemistry, 84(15), 6856-6862 (2012-07-12)
We introduce an online multiple-junction capillary isoelectric focusing fractionator (OMJ-CIEF) for separation of biological molecules in solution by pI. In OMJ-CIEF, the separation capillary is divided into seven equal sections joined with each other via tubular Nafion membrane insertions. Each
Mengqi Li et al.
Cell metabolism, 30(3), 508-524 (2019-06-18)
Fructose-1,6-bisphosphate (FBP) aldolase links sensing of declining glucose availability to AMPK activation via the lysosomal pathway. However, how aldolase transmits lack of occupancy by FBP to AMPK activation remains unclear. Here, we show that FBP-unoccupied aldolase interacts with and inhibits
J C Naviaux et al.
Translational psychiatry, 4, e400-e400 (2014-06-18)
Autism spectrum disorders (ASDs) now affect 1-2% of the children born in the United States. Hundreds of genetic, metabolic and environmental factors are known to increase the risk of ASD. Similar factors are known to influence the risk of schizophrenia
Mohammed Anwar et al.
International journal of pharmaceutics, 468(1-2), 158-164 (2014-04-22)
Nano-sized curcumin-loaded super-paramagnetic iron oxide nanoparticles (CUR-OA-SPIONs) were synthesized chemically by co-precipitation method using oleic acid as a stabilizer and Myrj 52 as a surfactant. The synthesized nanoparticles were characterized for their shape, size, surface morphology, electrokinetic potential, magnetic properties
查看所有相关文献

商品

Newly Developed Porous Graphitic Carbon in U/HPLC

Polar graphitic carbon enables UHPLC separation of highly polar pesticides, herbicides, and Vitamin D metabolites, advancing liquid chromatography capabilities.

High-Energy Lithium-Ion Batteries

Experts discuss challenges and production processes of nickel-rich layered oxide cathode materials in energy storage systems.

实验方案

UHPLC/MS for Drug Detection in Urine

Optimize β-glucuronidase hydrolysis for glucuronide metabolite analysis considering factors like time, temperature, pH, and enzyme concentration.

使用UHPLC/MS（TOF）检测不同酶水解条件处理的尿液中药物和代谢物

为了使用β-葡糖醛酸酶优化水解，必须对每种待分析的葡糖苷酸代谢物进行某些因素的评估，例如孵育时间、温度、水解pH、酶源和酶浓度。

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

      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

      Helpful?

  3. Is the concentration of item 338818-1L expressed as % w/w?

    1 answer

    1. Yes.

      Helpful?

Reviews

No rating value

Active Filters

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系客户支持