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Merck

71996

Sigma-Aldrich

无水硼砂

puriss. p.a., anhydrous, ≥98.0% (T)

别名:

四硼酸钠

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About This Item

线性分子式:
Na2B4O7
CAS号:
分子量:
201.22
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.22

品質等級

等級

puriss. p.a.

化驗

≥98.0% (T)

形狀

crystals

負離子痕跡

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

正離子痕跡

Ag: ≤5 mg/kg
Al: ≤5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Tl: ≤5 mg/kg
Zn: ≤5 mg/kg

應用

forensics and toxicology

SMILES 字串

[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2

InChI

1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1

InChI 密鑰

UQGFMSUEHSUPRD-UHFFFAOYSA-N

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應用

无水硼砂可用作硼源,用于以 ZrO2 和硅为原料通过新型环保的硅热还原法合成纯相ZrB2粉末。它也可用于制备硼氢化钠、纳米级二硼化钛和碱活化硼硅酸盐无机聚合物。

其他說明

用于通过熔融法分解氧化物和硅酸盐的试剂

法律資訊

象形圖

Health hazardExclamation mark

訊號詞

Danger

危險聲明

危險分類

Eye Irrit. 2 - Repr. 1B

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 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


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R. Bock
Aufschlussmethoden der anorg. & org. Chemie (1972)
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Methods of Decomposition in Inorganic Analysis (1989)
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In this work, the separation of nine phenolic acids (benzoic, caffeic, chlorogenic, p-coumaric, ferulic, gallic, protocatechuic, syringic, and vanillic acid) was approached by a 3(2) factorial design in electrolytes consisting of sodium tetraborate buffer (STB) in the concentration range of
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An efficient and sensitive method for the separation and determination of three essential amino acids and three B vitamins by CE-LIF with a simultaneous derivatization procedure was developed. The conditions for derivatization and separation of these micronutrients were investigated. FITC
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Based on the investigation of the effect of microemulsion charge on the chiral separation, a new chiral separation method with MEEKC employing neutral microemulsion was established. The method used a microemulsion containing 3.0% (w/v) neutral surfactant Tween 20 and 0.8%

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