Merck

Product Details :

PH Paper Merck ph O-14

PH meter - indicator strips (non-bleeding) 1 box fill 100 strips
Universal indicator pH 0 - 14
To measure pH levels in liquids within 2 seconds made in Germany

This paper PH is strip-shaped and is used to measure PH (acidity level) with a scale of 0 s / d 14.

Product Details :

Buffer Solution Merck Ph 10

Deskripsi Produk
Buffer Solution Merck Ph 10 Merck 1.09438.1000
Physicochemical Information
Boiling point 110 C (1013 hPa)
Density 1.00 g/cm3 (20 C)
Melting Point -6 C
pH value 10.0 (HO, 20 C)
Safety Information according to GHS
Storage class 10 - 13 Cairan dan padatan lain
WGK NWG tidak berbahaya untuk air
Disposal 28
Larutan encer : Kategori D
Storage and Shipping Information
Storage Simpan pada +15C hingga +25C.
Specifications
pH-value (20C) 9.98 - 10.02
Measured with a combined glass electrode after 5-point calibration according to DIN 19268 (expanded measurement uncertainty +/-0.02) with solutions according to DIN 19266, prepared with primary reference materials, at the accredited laboratory according to DIN EN ISO/IEC 17025.
Deviation of pH (Delta pH) at various temperatures:
(0C) + 0.26
(5C) + 0.17
(10C) + 0.11
(15C) + 0.05
(20C) +/- 0
(25C) - 0.06
(30C) - 0.11
(35C) - 0.16
(40C) - 0.18
(50C) - 0.26 
 

Product Details :

Sodium Hidroksida MERCK Pellet Cap. 500 g

MERCK 106498.0500 Sodium hidroksida/Sodium hydroxide pellet cap. 500 g

Deskripsi Produk
Sodium hydroxide pellets for analysis EMSURE ISO. CAS No. 1310-73-2, EC Number 215-185-5. 

Description 
Catalogue Number 106498
Synonyms Soda caustic
Product Information 
CAS number 1310-73-2
EC index number 011-002-00-6
EC number 215-185-5
Grade ISO
Hill Formula HNaO
Chemical formula NaOH
Molar Mass 40.00 g/mol
HS Code 2815 11 00
Applications 
Application Sodium hydroxide pellets for analysis EMSURE ISO. CAS No. 1310-73-2, EC Number 215-185-5.
Physicochemical Information 
Density 2.13 g/cm3 (20 C)
Melting Point 319 - 322 C
pH value >14 (100 g/l, HO, 20 C)
Solubility 1090 g/l

Specifications : 
Assay (acidimetric,NaOH) 99.0 %
Carbonate (as NaCO) 1.0 %
Chloride (Cl) 0.0005 %
Phosphate (PO) 0.0005 %
Silicate (SiO) 0.001 %
Sulphate (SO) 0.0005 %
Total nitrogen (N) 0.0003 %
Heavy metals (as Pb) 0.0005 %
Al (Aluminium) 0.0005 %
As (Arsenic) 0.0001 %
Ca (Calcium) 0.0005 %
Cu (Copper) 0.0002 %
Fe (Iron) 0.0005 %
K (Potassium) 0.05
Mg (Magnesium) 0.0005 %
Ni (Nickel) 0.00025 %
Pb (Lead) 0.0005 %
Zn (Zinc) 0.001 %