Matematica

Practica 0.

- Zinc granulated (granulated 250gr)

P.A reag. Acs, reg ............................................... c.d max. 0.0005%
Iso,reag.PH. emr ……………………………… cu max. 0.001%Guarantee analysis ……………………………… fe max. 0.002%
Assay min. 99.9% ……………………………… Pb max. 0.005%
As max. 0.00001% ............................................... sn max. 0.001%

- Sulfato de cobre(II) pentahidrató 500 gr.

Copper (II) sulfate pentahydrate.
Puriss, P.A., reag. Acs, reag. Iso, reag. ph. Eur

Kupfer (II)-Sulfat Pentahydrat
Cuivre (II) Sulfate Pentahydrate
Rame (II)Solfato pentaidrato

Simbolo de riesgos:

[pic]

Xi NIrritante Peligro para el
Medio ambiente

Etanol absolut2.51

Guarantee análysis S240697

Assay (gc) ………………………….. mi. 99.8 vol %
Boiling …………………………….. 78-99 ºC
De sity d 20/20 ................................... 0,790-,791
Refractive index (mol/D)................... 1,3614-1.3618
Non. Volatile matter ......................... max: 0.001%
Water ( kart ficher ) .......................... max: 0.2%

Simbolo de riesgos:

[pic]F
Fácilmente inflamable

Hidróxido de sodio en pastillas. 1 Kg.

Guarantee análisis:

Assay ……………………………. Min. 99%
Assay of Na2Co3 ………………. Max. 1%
AL max 0.0005%k......................... k. Max 0.02%
As max 0.0001% ………………... Mg max 0.0005%
Ca max 0.0005% ………………… Ni max 0.0005%
Cu max 0.0005% ………………… Pb max 0.0002%
Fe max 0.0005% …………………. Zn max 0.0005 %
Hg max0.000005%
HeAVY metals (As.Pb) .................. max 0.0005%
HeAVY metals (As. Ag) ................ max 0.002%
Chloride (CL) ................................. max 0.0005%
Phosphate (Po4)...