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Merck

12611

Sigma-Aldrich

碳酸钾

puriss., meets analytical specification of Ph. Helv., anhydrous, granulated, 99-101% (calc. to the dried substance)

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About This Item

线性分子式:
K2CO3
CAS号:
分子量:
138.21
Beilstein:
4267587
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21

等級

puriss.

化驗

99-101% (calc. to the dried substance)

形狀

powder or crystals

品質

granulated
meets analytical specification of Ph. Helv.

雜質

residual solvents, complies
≤0.001% heavy metals (as Pb)

損耗

≤1% loss on drying, 120 °C, 5 h

pH值

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

負離子痕跡

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤20 mg/kg

正離子痕跡

As: ≤1 mg/kg
Ca: ≤50 mg/kg
Fe: ≤10 mg/kg
Mg: ≤50 mg/kg
Na: ≤2000 mg/kg

適合性

complies for appearance of solution

SMILES 字串

[K+].[K+].[O-]C([O-])=O

InChI

1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI 密鑰

BWHMMNNQKKPAPP-UHFFFAOYSA-L

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象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

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

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The cobalt-catalyzed Diels-Alder reaction of trimethylsilyl-substituted alkynes with 1,3-dienes led to dihydroaromatic intermediates which were transformed into iodobenzene derivatives. For this transformation, the dihydroaromatic intermediates had to be oxidized and the trimethylsilyl-substituted arene had to undergo a silicon-iodine exchange reaction.
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Canadian Journal of Chemistry, 78(6), 920-924 (2000)
Heck reaction catalyzed by phospha-palladacycles in non-aqueous ionic liquids.
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