Merck 103025 0025 Bromocresol Purple indicator 25 GR.

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Stok kodu: 103025 Kategoriler: Kimyasallar, Merck Milipore

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Description
Catalogue Number	103025
Synonyms	5′,5”-Dibromo-o-cresolsulfonphthalein

Product Information
CAS number	115-40-2
EC number	204-087-8
Grade	ACS,Reag. Ph Eur
Hill Formula	C₂₁H₁₆Br₂O₅S
Molar Mass	540.24 g/mol
HS Code	2934 99 99
Structure formula Image
Quality Level	MQ200

Physicochemical Information
Melting Point	242 °C
Bulk density	515 kg/m3

Safety Information according to GHS
Storage class	10 – 13 Other liquids and solids
WGK	WGK 3 highly hazardous to water
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Storage and Shipping Information
Storage	Store at +2°C to +30°C.

Specifications
Identity (UV/VIS-Spectrum)	passes test
Clarity of solution (1 g/l; ethanol)	passes test
Transition range	pH 5.2 – pH 6.8 greenish yellow – blue violet
Absorption maximum λ 1 _max. (buffer pH 5.2)	429 – 433 nm
Absorption maximum λ 2 _max. (buffer pH 6.8)	587 – 590 nm
Spec. Absorptivity A 1%/1cm (λ 1 _max.; 0.005 g/l; buffer pH 5.2; calc. on dried substances)	400 – 470
Spec. Absorptivity A 1%/1cm (λ 2 _max.; 0.005 g/l; buffer pH 6.8; calc. on dried substances)	1000 – 1160
Loss on drying (110 °C)	≤ 2 %
Transition range (according to ACS)	passes test
Sensitivity test	passes test