Merck 108176 0025 Thymol Blue indicator Acs 25 GR.

Merck 108176 0025 Thymol Blue indicator Acs 25 GR.

193.26 ( KDV Dahil )

indicator ACS,Reag. Ph Eur

Stok kodu: 108176.0025 Kategoriler: ,

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Description
Catalogue Number 108176
Synonyms Thymolsulfonphthalein

Product Information
CAS number 76-61-9
EC number 200-973-3
Grade ACS,Reag. Ph Eur
Hill Formula C₂₇H₃₀O₅S
Molar Mass 466.60 g/mol
HS Code 2934 99 90
Structure formula Image Structure formula Image
Quality Level MQ200

Physicochemical Information
Density 0.979 g/cm3
Melting Point 221 °C (decomposition)
Bulk density 350 kg/m3
Solubility 0.11 g/l

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 +15°C to +25°C.

Specifications
Clarity of solution (1 g/l; ethanol) passes test
Identity (UV/VIS-Spectrum) passes test
1st transition range pH 1.2 – pH 2.8 violet red – brownish yellow
2nd transition range pH 7.8 – pH 9.5 greenish yellow – blue
Absorption maximum λ 1 max. (buffer pH 1,2) 543 – 547 nm
Absorption maximum λ 2 max. (buffer pH 2,8) 431 – 437 nm
Absorption maximum λ 3 max. (buffer pH 7.8) 431 – 437 nm
Absorption maximum λ 4 max. (buffer pH 9.5) 594 – 598 nm
Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.01 g/l; buffer pH 1,2; calc. on dried substances) 580 – 720
Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.01 g/l; buffer pH 2,8; calc. on dried substances) 250 – 370
Spec. Absorptivity A 1%/1cm (λ 3 max.; 0.01 g/l; buffer pH 7.8; calc. on dried substances) 250 – 370
Spec. Absorptivity A 1%/1cm (λ 4 max.; 0.01 g/l; buffer pH 9.5; calc. on dried substances) 580 – 700
Loss on drying (110 °C) ≤ 5 %
Transition range (according to ACS) passes test
Sensitivity test passes test
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