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225819

Sigma-Aldrich

肼 水合物

reagent grade, N2H4 50-60 %

别名:

水合肼

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100 ML
$53.90
50 G
$106.00
500 ML
$118.00
250 G
$138.00
1 KG
$242.00

$53.90

国内现货，预计发货时间2025年5月16日详情

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选择尺寸

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100 ML
$53.90
50 G
$106.00
500 ML
$118.00
250 G
$138.00
1 KG
$242.00

About This Item

线性分子式:
NH2NH2 · xH2O
CAS号:
10217-52-4
分子量:
32.05 (anhydrous basis)
EC 号:
206-114-9
MDL编号:
MFCD00149931
UNSPSC代码:
12352302
PubChem化学物质编号:
57647990
NACRES:
NA.21

$53.90

国内现货，预计发货时间2025年5月16日详情

Request a Bulk Order

等级

reagent grade

质量水平

200

蒸汽密度

>1 (vs air)

蒸汽压

5 mmHg ( 25 °C)

表单

liquid

组成

Degree of hydration, ~1.5
N2H4, 50-60%

expl. lim.

99.99 %

浓度

50.0-60.0% (%H4N2 by Na2S2O3 basis, titration)

密度

1.029 g/mL at 25 °C (lit.)

SMILES字符串

NN.[H]O[H]

InChI

1S/H4N2.H2O/c1-2;/h1-2H2;1H2

InChI key

IKDUDTNKRLTJSI-UHFFFAOYSA-N

相关类别

一般描述

在还原氧化石墨烯(RGO)对电极中加入水合肼可以改善其在染料敏化太阳能电池(DSSC)中的性能。[1]

应用

关于水合肼对牙釉质样品的脱蛋白作用已有研究。[2]它可作为以下过程的还原剂：
  • 制备银纳米颗粒。[3]
  • 取代单硝基苯衍生物向相应苯胺的转化。[4]
  • 与石墨一起用于硝基化合物(芳香族和脂肪族)到氨基化合物的转化。[5][6]
水合肼可用于制备:
  • 通过与5-苄基-2-苯基色氨酸反应得到3-(2-苄基-6-羟基苯基)-5-苯基吡唑。[7]
  • 通过与1,3-二苯基-2-丙烯-1- 1反应得到3,5-二苯基-2-吡唑啉衍生物。[8]
  • 与3-芳基酰基-3,4-二氢喹啉-2(1H)-喹喔啉酮-反应生成3′- 1,2,3,4,4′,5′[喹诺沙林-2,5′ -吡唑]-喹喔啉酮-。[9]
  • 它还可用于硝基芳香族胺的催化还原。[10]

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说明
价格

警示用语：

Danger

危险分类

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - Skin Sens. 1

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(°F)

204.8 °F - closed cup

闪点(°C)

96 °C - closed cup

个人防护装备

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCW7456
MKCW1777
BCCL4958
BCCM5374
BCCM4263

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Reduction of aromatic nitro compounds with hydrazine hydrate in the presence of an iron oxide hydroxide catalyst. I. The reduction of monosubstituted nitrobenzenes with hydrazine hydrate in the presence of ferrihydrite.
Lauwiner M, et al.
Applied Catalysis A: General, 172(1), 141-148 (1998)
T Baumann et al.
Scientific reports, 5, 15194-15194 (2015-10-16)
Enamel proteins form a scaffold for growing hydroxyapatite crystals during enamel formation. They are then almost completely degraded during enamel maturation, resulting in a protein content of only 1% (w/v) in mature enamel. Nevertheless, this small amount of remaining proteins
Graphite catalyzed reduction of aromatic and aliphatic nitro compounds with hydrazine hydrate.
Byung HH, et al.
Tetrahedron Letters, 26(50), 6233-6234 (1985)
Catalytic reduction of nitroarenes with hydrazine hydrate in suitable solvents.
Ayyangar NR, et al.
Synthesis, 1981(08), 640-643 (1981)
Synthesis and molecular structure of 3-(2-benzyloxy-6-hydroxyphenyl)-5-styrylpyrazoles. Reaction of 2-styrylchromones and hydrazine hydrate.
Pinto DC, et al.
Tetrahedron, 55(33), 10187-10200 (1999)
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Questions

1–5 of 5 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. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  4. What is the difference between Hydrazine hydrate product numbers 225819, 215155 and 207942?

    1 answer

    1. Prod. No. 215155 is anhydrous hydrazine. There is no water associated with this product. It has a molecular (formula) weight of 32.05. Prod. No. 207942 is hydrazine monohydrate. There is one mole of water for every mole of hydrazine. It has a molecular (formula) weight of 50.06. Prod. No. 225819 is hydrazine hydrate. The hydrazine content by weight from batch to batch may vary between 50 to 60%. Because the amount of water present (the other 40 to 50%) will also vary from batch to batch, it does not have a defined molecular (formula) weight. If a batch was found to contain 54 wt% hydrazine, then that batch would have 1.5 moles of water for every mole of hydrazine.

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  5. Is Product 225819, Hydrazine hydrate, a liquid or a solid?

    1 answer

    1. The package sizes for this product are in a mass unit (gram) rather than a volume unit (mL). However, this product is a liquid and not a solid. It has a reported density of 1.029 g/mL at 25°C.

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