Titrant 5
titrant for volumetric Karl Fischer titration with two component reagents 1 ml ≙ ca. 5 mg H₂O Aquastar®

Citric acid monohydrate
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Synonyms: 2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid
EC Number: 201-069-1 CAS #: 5949-29-1 Hill Formula: C₆H₈O₇ * H₂O Molar Mass: 210.14 g/mol Grade: ACS,ISO,Reag. Ph Eur

Formic acid 98-100%
for analysis EMSURE® ACS,Reag. Ph Eur
Synonyms: Methanoic acid, Formylic acid
EC Number: 200-579-1 CAS #: 64-18-6 Hill Formula: CH₂O₂ Molar Mass: 46.03 g/mol Grade: ACS,Reag. Ph Eur Chemical Formula: HCOOH

boric acid
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Synonyms: Orthoboric acid, Trihydroxidoboron
CAS #: 10043-35-3 Chemical Formula: H₃BO₃ Hill Formula: 101947 Grade: ACS,ISO,Reag. Ph Eur Molar Mass: 61.83 g/mol EC Number: 233-139-2

Aluminium hydroxide powder, hydrargillite EMPLURA®
Synonyms: Hydrargillite
Hill Formula: AlH₃O₃ EC Number: 244-492-7 CAS #: 21645-51-2 Chemical Formula: Al(OH)₃ * x H₂O Molar Mass: 78 g/mol

Ammonium peroxodisulfate EMPLURA®
Synonyms: Ammonium persulfate, Peroxidisulfuric acid diammonium salt
Hill Formula: H₈N₂O₈S₂ CAS #: 7727-54-0 Chemical Formula: (NH₄)₂S₂O₈ Molar Mass: 228.19 g/mol

Phenolphthalein indicator ACS,Reag. Ph Eur
CAS #: 77-09-8 Hill Formula: C₂₀H₁₄O₄ Molar Mass: 318.32 g/mol Grade: ACS,Reag. Ph Eur EC Number: 201-004-7