Merck 111748 pHenol red sodium salt indicator ACS

Kategori

Asit Alkali veya pH İndikatörleri

Marka

MERCK

Stok Kodu

LB.M.1117480005

Kısa Bilgi

CAS Number: 34487-61-1 EC Number: 252-057-8 Molar Mass: 376.36 g/mol Hill Formula: C₁₉H₁₃NaO₅S Grade: ACS

Teklif Sepetine Ekle

Stok Sorunuz

Merck 111748 pHenol red sodium salt indicator ACS 5 gr
Catalogue Number	111748

MERCK 118305 Hexane-1-sulfonic acid sodium salt for ion pair chromatography LiChropur® 25 gr

Product Information
CAS number	34487-61-1
EC number	252-057-8
Grade	ACS
Hill Formula	C₁₉H₁₃NaO₅S
Molar Mass	376.36 g/mol
HS Code	2934 99 90
Structure formula Image
Quality Level	MQ200

Physicochemical Information
Melting Point	285 °C
Solubility	100 g/l

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H315: Causes skin irritation. H335: May cause respiratory irritation.
Precautionary Statement(s)	P261: Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. P264: Wash skin thoroughly after handling. P271: Use only outdoors or in a well-ventilated area. P280: Wear protective gloves. P302 + P352: IF ON SKIN: Wash with plenty of water. P304 + P340 + P312: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell.
Signal Word	Warning
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 +5°C to +30°C.

Specifications
Identity (UV/VIS-Spectrum)	passes test
Clarity of solution (1 g/l; water)	passes test
1st transition range	pH 1.2 - pH 3.0 brownish orange - yellow
2nd transition range	pH 6.5 - pH 8.0 brownish yellow - red violet
Absorption maximum λ 1 max. (buffer pH 1,2)	503 - 506 nm
Absorption maximum λ 2 max. (buffer pH 3,0)	430 - 435 nm
Absorption maximum λ 3 max. (buffer pH 6.5)	430 - 435 nm
Absorption maximum λ 4 max. (buffer pH 8,0)	557 - 560 nm
Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.005 g/l; buffer pH 1,2; calc. on dried substances)	850 - 1100
Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.005 g/l; buffer pH 3,0; calc. on dried substances)	550 - 650
Spec. Absorptivity A 1%/1cm (λ 3 max.; 0.005 g/l; buffer pH 6.5; calc. on dried substances)	550 - 650
Spec. Absorptivity A 1%/1cm (λ 4 max.; 0.005 g/l; buffer pH 8,0; calc. on dried substances)	950 - 1150
Loss on drying (110 °C)	≤ 8.0 %
Transition range (according to ACS)	pH 6.8 - pH 8.2 yellow - red

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Merck 111748 pHenol red sodium salt indicator ACS

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