bromocresol green Cas:76-60-8

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bromocresol green cas 76-60-8 manufacturer supply

Chemical Name:Bromocresol green

CAS: 76-60-8

Molecular Formula:C21H14Br4O5S

Molecular weight:698.01

Appearance: Yellow crystal

Category: Chemical Auxiliary Agents Tag: Bromocresol green

• Description

Description

Bromocresol green

Bromocresol green quick Details

Chemical Name:Bromocresol green

CAS: 76-60-8

Molecular Formula:C21H14Br4O5S

Molecular weight:698.01

Appearance: Yellow crystal

Bromocresol green Specifications

PH Color change interval: 3.8 (yellow-green)-5.4 (blue)

Maximum absorption wavelength (nm): λ1(PH3.8)440-445

λ2(PH5.4) 615-618

Mass absorption coefficient, L/(cm.g): α1(λ1, PH3.8 dry sample)

α2(λ1, PH5.4 dry sample)

Ethanol dissolved test: Pass test

Loss on drying: ≤3.0

Residue on ignition (as SO4)%’: ≤0.25

Bromocresol green typical Properties

Item	Specifications	Results
Assay (%)	≥98.5	98.9
PH Color change interval	3.8 (yellow-green)-5.4 (blue)	Pass test
Maximum absorption wavelength (mm)	λ1 (PH3.8)440-445	442
λ2 (PH5.4) 615-618	616
Mass absorption coefficient, L/(cm.g)	α1(λ1, PH3.8 dry sample) 24-28	25
α2(λ1, PH5.4 dry sample) 53-58	55
Ethanol dissolved test	Pass test	Pass test
Loss on drying	≤3.0	2.1
Residue on ignition (as SO4)%	≤0.25	0.25
Conclusion	The results conforms with HG/T4017-2008 indicator

Bromocresol green Application

This product is used as acid-base indicator and cell staining agent.

Bromocresol green Packing

1kg/bag 25kg/drum

Bromocresol green Storage

Stored in cool, dry and ventilation place.

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