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thymol blue

biotech grade

76-61-9 C₂₇H₃₀O₅S 466.59 g./mol

฿400.00

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Polyphosphoric acid

Content (P2O5)% ≥85%

8017-16-1 Hn₂PnO₃₁

฿1,180.00

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Potassium nitrate -15N

Abundance: 10atom%; Chemical purity: ≥98.5%

57654-83-8 K₁₅NO₃ 102.1 g./mol

฿1,820.00

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1,10-Phenanthroline hydrochloride monohydrate

97%

18851-33-7 C₁₂H₈N₂HClH₂O 234.68 g./mol

฿480.00

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Eriochrome black T

Indicator

1787-61-7 C₂₀H₁₂N₃NaO₇S 461.38 g./mol

฿320.00

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Tetrafluoroboric acid

50 wt. % aqueous solution

16872-11-0 HBF₄ 87.81 g./mol

฿500.00

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Ammonium chloride-15N

Abundance: 10atom%; Chemical purity: ≥98.5%

39466-62-1 ₁₅NH₄Cl 54.48 g./mol

฿2,040.00

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3-(2-Pyridyl)-5,6-di(2-furyl)-1,2,4-triazine-5',5''-disulfonic acid disodium salt

for spectrophotometric det. of Fe, ≥99.0%

79551-14-7 C₁₆H₈N₄Na₂O₈S₂ 494.37 g./mol

฿2,754.00

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o-Cresolphthalein complexone

Chelation indicator

2411-89-4 C₃₂H₃₂N₂O₁₂ 636.6 g./mol

฿420.00

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Dithizone

ACS reagent, for spectrophotometric det. of Cd,Cu,Hg,Pb,Zn, ≥98%(TLC)

60-10-6 C₁₃H₁₂N₄S 256.33 g./mol

฿1,860.00

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