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Eriochrome Black T

Eriochrome Black T
Eriochrome Black T structure
CAS No.
1787-61-7
Chemical Name:
Eriochrome Black T
Synonyms
EBT;NBC2;NBC3;SBC2;F-241;NBC2B;ERIO T;SLC4A6;SLC4A7;CI 14645
CBNumber:
CB5457454
Molecular Formula:
C20H12N3NaO7S
Formula Weight:
461.38
MOL File:
1787-61-7.mol

Eriochrome Black T Properties

Density 
1.109 g/mL at 25 °C
Flash point:
185 °C
storage temp. 
Store at RT.
solubility 
50g/l
form 
Powder/Solid
Colour Index 
14645
pka
pK1:6.3;pK2:11.55 (25°C)
color 
Brownish-black to black
Specific Gravity
1.109
Odor
Odorless
PH
3.7 (10g/l, H2O, 20℃)
Water Solubility 
50 g/L (20 ºC)
Merck 
14,3667
BRN 
4121162
Stability:
Stable. Incompatible with strong oxidizing agents, strong reducing agents.
CAS DataBase Reference
1787-61-7(CAS DataBase Reference)
FDA UNII
MPC0KHJ23C
EPA Substance Registry System
C.I. Mordant Black 11, monosodium salt (1787-61-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07,GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H301-H315-H317-H319-H335-H371-H400
Precautionary statements  P260-P264-P270-P271-P272-P273-P280-P301+P310+P330-P302+P352+P333+P313+P363-P304+P340+P312-P305+P351+P338+P337+P313-P308+P311-P391-P403+P233-P405-P501-P302+P352+P332+P313+P362+P364-P261-P280a-P304+P340-P305+P351+P338-P501a
Hazard Codes  Xi
Risk Statements  36-36/37/38-36/38
Safety Statements  39-26-37/39-24/25
RIDADR  3077
WGK Germany  2
RTECS  QK2197000
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  32041900
Toxicity LD50 oral in rat: 17590mg/kg

Eriochrome Black T price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 858390 Eriochrome? Black T ACS reagent (indicator grade) 1787-61-7 100g $25 2019-12-02 Buy
Sigma-Aldrich 858390 Eriochrome? Black T ACS reagent (indicator grade) 1787-61-7 1kg $163 2019-12-02 Buy
TCI Chemical E0020 Eriochrome Black T Complex 1787-61-7 25g $53 2019-12-02 Buy
TCI Chemical E0214 Eriochrome Black T 1787-61-7 25g $53 2019-12-02 Buy
Alfa Aesar A17536 Eriochrome Black T 1787-61-7 500g $99.3 2019-12-02 Buy

Eriochrome Black T Chemical Properties,Uses,Production

Chemical Properties

black powder

Uses

To dye wool from an acid bath reddish-black, which can be converted to blue-black by afterchroming. As indicator in the determination of the total calcium and magnesium content of water.

Purification Methods

The sodium salt (200g) is converted to the free acid by stirring with 500mL of 1.5M HCl, and, after several minutes, the slurry is filtered on a sintered-glass funnel. The process is repeated and the material is air dried after washing with acid. It is then extracted with *benzene for 12hours in a Soxhlet extractor, the *benzene solution is evaporated and the residue is air dried. A further desalting with 1.5M HCl (1L) is followed by crystallisation from dimethylformamide (in which it is very soluble) by forming a saturated solution at the boiling point, and allowing to cool slowly. The crystalline dimethylammonium salt so obtained is washed with *benzene and treated repeatedly with dilute HCl to give the insoluble free acid which, after air drying, is dissolved in alcohol, filtered and evaporated. The final material is air dried, then dried in a vacuum desiccator over Mg(ClO4)2. The purified acid is converted to the dimethylammonium salt with Me2NH. [Diehl & Lindstrom, Anal Chem 31 414 1959]. It is an indicator in the complexometry of alkaline earth metals. [Beilstein 16 IV 429.]

Eriochrome Black T Preparation Products And Raw materials

Raw materials

Preparation Products


Eriochrome Black T Suppliers

Global( 266)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30050 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23977 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28235 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 10229 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35436 58
HENAN BON INDUSTRIAL CO.,LTD
0371-55170695
info@hnbon.com CHINA 20536 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47486 58
Antai Fine Chemical Technology Co.,Limited
+86-18503026267
info@antaichem.com CHINA 9664 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 sale@mainchem.com CHINA 32445 55
Shenyang Xianchuang Chemical Co., Ltd. 024-23769576
024-23769576 274311108@qq.com CHINA 53 58

View Lastest Price from Eriochrome Black T manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-16 Eriochrome Black T
1787-61-7
US $8.00 / kg 1kg 99% 10MT career henan chemical co

Eriochrome Black T Spectrum


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