Reactivi Chimici
SEAPIDStare
DA20576658
Data11 Iunie 2018
Valoare1.023 RON
Oferta acceptata
Autoritatea contractantaLocalitateAlexandria, Teleorman
FurnizorTipul contractuluiFurnizare
Cod CPVDescriere:Reactivi chimic conform ofertei
Achizitii235 RON
Cantitate: 1
Unitate masura: 1 litru
Azotat de argint 0.1N solutie
factor..............................................................
uncertainty ± 0,001
1 ml = 0,01699 g AgNO3
1,000 ± 0,001 This volumetric solution was checked
by means of potentiometric methods
using Scharlau’s potassium chloride
volumetric standard.
Scharlau’s volumetric standards are
directly traceable to the Standard
Reference Materials from NIST (National
Institute of Standards and Technology,
USA).
• Form: liquid
• Density: 1,01 g/cm3
• pH (20 ºC) ~ 4 - 5150 RON
Cantitate: 1
Unitate masura: 1 litru
Clorura de sodiu solutie 0.1 mol/litru
Specifications
factor.............................................................
uncertainty ± 0,001
1 ml = 0,005844 g NaCl
0,999 - 1,001 This volumetric solution was checked
by means of potentiometric methods
using a silver nitrate standard solution,
that was also checked against Scharlau’s
potassium chloride volumetric standard.
Scharlau’s volumetric standards are
directly traceable to the Standard
Reference Materials from NIST (National
Institute of Standards and Technology,
USA161 RON
Cantitate: 1
Unitate masura: 500 ml
Standard de conductivitate clorura de potasiu 1413ns/cm
conductivity at 25 °C.............................. ........
uncertainty......................................................
The standard has been measured with an
electrode, whose cell constant is approx.
8,9 cm-1, and a temperature sensor.
This conductivity standard is traceable to
SRM 999a from NIST (KCl).
1399 - 1427 µS/cm
< 1%
T (°C)
15....................................................................
20....................................................................
25....................................................................
30....................................................................
35....................................................................
40....................................................................
k (µS/cm)
1139
1276
1413
1550
1694
1833
• Form: liquid
• Solub. in water (20 ºC): miscible
Physical data355 RON
Cantitate: 1
Unitate masura: 500g
Iodura de potasiu
• Form: solid
• Spec. density: 3,13 g/cm3
• Bulk density: ~ 1500 kg/m3
• Solub. in water (20 ºC): soluble
• Melting point: 686 ºC
• Boiling point: 1330 ºC
• Vapour pressure: (745 ºC) 1,3 hPa
• pH (50 g/l H2O, 20 ºC) ~ 6,9122 RON
Cantitate: 1
Unitate masura: 1 litru
Acid oxalic 0,1N titrofix
Identification
H2C2O4
M = 90,04 g/mol
CAS [144-62-7]
EC number: 205-634-3
Taric code: 2917 11 00
O
OH
HO
O
Applications
analytical chemistry, laboratory reagent.
Specifications
factor..............................................................
uncertainty ± 0,001
1 ml = 0,004502 g C2H2O4
0,999 - 1,001 This volumetric solution was checked
by means of potentiometric methods
using a potassium permanganate
standard solution, that was also checked
against Scharlau’s oxalic acid volumetric
standard. Scharlau’s volumetric
standards are directly traceable to the
Standard Reference Materials from
NIST (National Institute of Standards
and Technology, USA).