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Eriochrome black T

Eriochrome black T

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Synonyms:
C.I. 14645; 3-Hydroxy-4-(1-hydroxy-2-naphthylazo)-7-nitro-1-naphthalene sulfonic acid sodium salt; Mordant Black 11
CAS No.:
1787-61-7
数量
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1
keyword:
Eriochrome black T
Description
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Chemical Name

Eriochrome black T

Synonyms

C.I. 14645; 3-Hydroxy-4-(1-hydroxy-2-naphthylazo)-7-nitro-1-naphthalene sulfonic acid sodium salt; Mordant Black 11

CAS No.

1787-61-7

Molecular formula

C20H12N3NaO7S

EINECS No.

217-250-3

Molecular weight

461.38

Molecular Structure

 

Details

Appearance: brown black powder with metal luster

Water Soluble Test: pass

Solublity in Ethanol Passes Test: pass

Sensitivity Test: pass

Sulfated ash(as SO4): 20% max.

Main Application

Used as complexometric titration indicator.

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