858390
铬黑 ®T
ACS reagent (indicator grade)
别名:
媒介黑 11
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关于此项目
经验公式（希尔记法）:
C20H12N3NaO7S
化学文摘社编号:
分子量:
461.38
EC Number:
217-250-3
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
MDL number:
Colour Index Number:
14645
Beilstein/REAXYS Number:
4121162
grade
ACS reagent (indicator grade)
Quality Level
form
powder
clarity of soln
passes test
technique(s)
titration: suitable
λmax
503 nm
suitability
passes test for complexometric indicator
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
SMILES string
[Na+].Oc1cc(c2cc(ccc2c1\N=N\c3ccc4ccccc4c3O)[N+]([O-])=O)S([O-])(=O)=O
InChI
1S/C20H13N3O7S.Na/c24-17-10-18(31(28,29)30)15-9-12(23(26)27)6-7-14(15)19(17)22-21-16-8-5-11-3-1-2-4-13(11)20(16)25;/h1-10,24-25H,(H,28,29,30);/q;+1/p-1/b22-21+;
InChI key
AMMWFYKTZVIRFN-QUABFQRHSA-M
General description
Eriochrome® Black T可用作络合滴定的指示剂。它起酸碱指示剂的作用。Eriochrome® Black T能与Ca2+和Mg2+形成复合物，但它与Mg2+ 离子的结合能力更强。
铬® 黑T是羟基-偶氮染料，通常以一钠盐的形式提供。 该染料以泛绿色金属光泽的深紫色粉末形式存在。铬黑T可溶于水和乙醇，但不溶于常见有机溶剂。主要作为指示剂，用于乙二胺四乙酸（EDTA）法测定水硬度。
Application
通过络合滴定法，Eriochrome® Black T已被用于确定Ca2+ 的浓度。
Legal Information
Eriochrome is a registered trademark of Huntsman Petrochemical, LLC
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signalword
Warning
hcodes
Hazard Classifications
Aquatic Chronic 2 - Eye Irrit. 2
存储类别
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Chemistry for engineers (2008)
Laboratory Manual for Principles of General Chemistry (2010)
Physical Chemistry for the JEE and Other Engineering Entrance Examinations (2013)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 858390-500G | 04061833032381 |
| 858390-100G | 04061835570829 |
| 858390-1KG | 04061826759806 |