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ERIOCHROME BLACK T ACS GRADE

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Product Qty Per Unit: 
100.00
Product usage unit: 
Grams

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Product Delivery Locations: 
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Generic Name: 
Indicator for EDTA titration
ERIOCHROME BLACK T (ACS GRADE) Metal Titration Indicator
Product Description: 

ERIOCHROME BLACK T ACS GRADE excellent quality manufacturer , exporter and supplier. Eriochrome Black T, Reagent, ACS, also known as Solochrome Black T, is a complexometric indicator used as an indicator in EDTA titration. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. 

Product Application: 

Eriochrome black T is used as an indicator in analytical chemistry. 
It is also used in the detection of rare earth metals. It finds application in dyeing and printing of wool fabric, dyeing of silk and nylon as well as in leather dyeing. It can be used in the spectrophotometric determination of diphenhydramine hydrochloride in pharmaceutical preparations. 

As a complexometric indicator, it is useful in the determination of hardness of water.

Product Procedure: 

Metal Titration Indicator
water hardness determination process. It is an azo dye.
Black Stains and Dyes and Indicators

Product Note: 

Synonym :- 3-Hydroxy-4-(1-hydroxy-2-naphthylazo)-7-nitro-1-naphthalene sulfonic acid, sodium salt

Suitability :- Passes (for complexometric determination of metals)
Color :- Brownish-black to black
Grade :- Pure
Physical Form :-Powder
Formula Weight:- 461.38
Infrared Spectrum:- Authentic
Solubility in water: slightly soluble
Product Technical Specification: 
C.A.S. No. 1787-61-7
CI NO. 14645
M.F. C20H12N3NaO7S
M.W. 461.38gm/mole

Specifications:

Solubility 0.1 % (Dist. Water) Clear solution
Absorption Maximum (at pH 10.0 Ammonia Buffer + 2ml 0.05M E.D.T.A.) ?max 610-630nm
Absorptivity (A1%,1cm at ?max at pH10.0 Ammonia Buffer + 0.05M E.D.T.A.) >300
Loss On Drying (110°C) <1%
Suitability as indicator for Metal Titration Passes test
Product pack size: 
50 Gram, 100 Gram, 500 Gram, 1 Kg DUAL SEALED pack.
Product alias: 
<p> ERIOCHROME BLACK T ACS GRADE, indicator for EDTA titration, ETB, Solochrome Black T</p>

Eriochrome Black T is a complexometric indicator. During titrations of water hardness determination process. Eriochrome Black T is BLUE in colour but in the presence of calcium, magnesium, or other metal ions It turns RED.

Eriochrome Black T or EBT plays colour changing role in between 6.3 to 11.5, and with RED as its acidic colour and ORANGE its basic color. 

Stability: :Stable. Incompatible with strong oxidizing agents, strong reducing agents.

Eriochrome Black T, Reagent, ACS is complexometric indicator also known as Solochrome Black T.  Most popular to used as an indicator in EDTA titration. Also used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. 
Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

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Remarks: 

CAS 1787-61-7,7647-14-5