392340
玫瑰红酸二钾盐
technical grade, 85%
别名:
5,6-二羟基-5-环己烯-1,2,3,4-四酮 二钾盐, 玫棕酸 钾盐
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关于此项目
线性分子式:
C6O6K2
化学文摘社编号:
分子量:
246.26
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
235-881-2
MDL number:
Assay:
85%
Form:
powder
grade
technical grade
assay
85%
form
powder
mp
>300 °C (lit.)
SMILES string
[K+].[K+].[O-]C1=C([O-])C(=O)C(=O)C(=O)C1=O
InChI
1S/C6H2O6.2K/c7-1-2(8)4(10)6(12)5(11)3(1)9;;/h7-8H;;/q;2*+1/p-2
InChI key
NEWIILAQDSMNML-UHFFFAOYSA-L
General description
Potassium rhodizonate (3,4,5,6-Tetraoxocyclohexene-1,2-diol dipotassium salt, Rhodizonic acid potassium salt), a benzoquinone derivative, is the potassium salt of rhodizonic acid. Its crystalline structure has been reported and it exhibits space group Fddd. Rhodizonate dianion undergoes various thermal and photochemical reactions with various oxidizing reagents in aqueous solution.
Application
Potassium rhodizonate is suitable reagent for the preparation of staining solution used in the rhodizonate test for the detection of lead. It is suitable reagent used in the preparation of barium, thallium, ammonium and silver salts rhodizonic acid by metathesis in aqueous solution.
It may be used in the following studies:
It may be used in the following studies:
- To cocrystallize plutonium and radium from urine in the plutonium and radium assay of urine.
- As a dye in the spectrophotometric determination of sulfate ion.
- To determine the acid dissociation constants of rhodizonic acid by pH potentiometric titration of potassium rhodizonate with standardized HCl.
- As a staining agent for plagioclase in the petrographic study.
存储类别
11 - Combustible Solids
怎么回事？
WGK 3
闪点 (F)
Not applicable
闪点 (°C)
Not applicable
PPE（个人防护设备）
Eyeshields, Gloves, type N95 (US)