Product: Bromocresol Green
CAS NO.: 76-60-8
Molecular Formula: C21H14Br4O5S
Relative Molecular Mass: 698.02
Batch No.: SIM-191224
Quantity: 2.00KGS
MFG. DATE: Dec. 24,2019
EXPIRY DATE:Dec. 24,2022
Appearance: Pale grey crystal, easy solve in alcohol、aether and benzene, decline solve in water
Package: In aluminium foil bags.
Quality Standard
(HG/T 4017-2008)
Specification:
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Requirements:
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Results:
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PH Change Range
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3.8(yellow green )-5.4(blue)
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Passes test
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Maximal absorption wavelength(nm)
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λ1(PH3.8) 440-445 λ2(PH5.4) 615-618
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Passes test
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Quality absorption coefficient(L/cm·g)
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α1[λ1(PH3.8)] 24-28 α2[λ2(PH5.4)]53-58
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Passes test
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Sulfated ash w/%
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0.25% max
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0.2%
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Solubility in alcohol
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Passes test
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Passes test
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Loss on drying w/%
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3.0% max
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2.1%
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