1. EDTA disodic 0,1N solutie volumetrica. - Indigen # fiola x 1Buc., PU, RON fara TVA 22.5, PT, RON fara TVA 22.5
2. Solutie standard de calciu Ca(NO₃)₂ in HNO₃ 0.5 mol/l, trasabila NIST; 1000 mg/l Ca Certipur® - Merck #1197780500 500mLX 1Buc, PU, RON fara TVA 116.62, PT , RON fara TVA 116.62
3. ERIOCHROME BLACK T indicator M = 461.38 g/mol; - Import #chem*232714101*25g , 25g X 1Buc., PU, RON fara TVA 46.37, PT, RON ...
1. EDTA disodic 0,1N solutie volumetrica. - Indigen # fiola x 1Buc., PU, RON fara TVA 22.5, PT, RON fara TVA 22.5
2. Solutie standard de calciu Ca(NO₃)₂ in HNO₃ 0.5 mol/l, trasabila NIST; 1000 mg/l Ca Certipur® - Merck #1197780500 500mLX 1Buc, PU, RON fara TVA 116.62, PT , RON fara TVA 116.62
3. ERIOCHROME BLACK T indicator M = 461.38 g/mol; - Import #chem*232714101*25g , 25g X 1Buc., PU, RON fara TVA 46.37, PT, RON fara TVA 46.37
4. Triethanolamine GR for analysis. M = 149.19 g/mol - Merck #1083790250, 250mL X 1, PU, RON fara TVA 147.34, PT, RON fara TVA 147.34
5. Cromat de potasiu pentru analiza, EMSURE® ACS,Reag. Ph Eur M = 194,2g/mol - Merck #1049520250 250g X 1Buc., PU, RON fara TVA 173.96, PT, RON fara TVA 173.96
6. Clorura de sodiu - solutie for 1000 ml, c(NaCl) = 0.1 mol/l (0.1 N) Titrisol® solutie pentru prepararea a 1000 ml solutie NaCl 0,1mol/l. - Merck #1099450001 fiola X 1Buc., PU, RON fara TVA 89.36, PT, RON fara TVA 89.36
7. "Clorura de sodiu pentru analiza; EMSURE® ACS,ISO,Reag. Ph Eur M = 58,44g/mol . - Merck #1064040500" 500g X 1Buc, PU, RON fara TVA 73.2 , PT, RON fara TVA73.2
8. Clorura de potasiu - solutie (nominal 0,147 mS/cm), material de referinta certificat pentru masurare conductivitate electrolitica, trasabil PTB si NIST; (c = 0.001 mol/l) Certipur® Ambalare: 30 x 30 ml - Merck #1015860001 buc X 1 Buc. , PU, RON fara TVA 219.59, PT, RON fara TVA 219.59
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