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452904

Sigma-Aldrich

硼氢化钠 溶液

~12 wt. % in 14 M NaOH

同義詞:

Sodium hydroborate, Sodium tetrahydridoborate

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About This Item

線性公式:
NaBH4
CAS號碼:
16940-66-2
分子量：:
37.83
MDL號碼:
MFCD00003518
分類程式碼代碼:
26111700
PubChem物質ID:
57650270
NACRES:
NA.22
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品質等級

200

反應適用性

reagent type: reductant

濃度

~12 wt. % in 14 M NaOH

密度

1.375 g/mL at 25 °C

SMILES 字串

[BH4-].[Na+]

InChI

1S/BH4.Na/h1H4;/q-1;+1

InChI 密鑰

YOQDYZUWIQVZSF-UHFFFAOYSA-N

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相關類別

應用

使用碱性硼氢化钠溶液作为在各种催化剂（）存在下水解生成氢的有效试剂。例如γ-Al2O3负载钴催化剂、[1]碳负载钴催化剂、[2]石墨烯氧化物颗粒负载钴纳米颗粒[3]以及Ni45Au45Co10三金属纳米颗粒。[4]

法律資訊

Ascensus产品

訊號詞

Danger

危險分類

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Repr. 1B - Skin Corr. 1A

安全危害

EUH014

儲存類別代碼

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

水污染物質分類（WGK）

WGK 2

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

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

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
SHBR5510
SHBS2785
SHBR7282
SHBR7284
SHBR0530

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Silver nanoclusters (Ag NCs) templated with DNAs have attracted much attention as novel fluorophores because of their convenient emission tunability by the sequence and length of the template DNAs. However, the precise production of Ag NCs in a site-specific manner
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Questions

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  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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