Номер cas 7758 02 3, фотография и фармацевтическая категория, 99.5% кристаллический бромид калия, цена

Product Overview

Description

pharmaceutical grade potassium bromide

CAS NO:7758-02-3
EINECS NO:231-830-3
Molecular Formula:BrK
Molecular Weight:119.0023

 

Description: white crystal, no smell, bitter taste; relative gravity: 2.75(25/4°C); melting point:734°C; boiling point: 1435°C; soluble in water and glycerol; lightly soluble in alcohol and ether .

 

Uses:industrial grade: carving, stone printing; pharmaceutical grade: sedative; phtography grade: photographic film.

Packing :compound bag, fiber can 30×37(cm), inner double layer plastic bag, 25 kg.

 

Specification:

item	pharmaceutical grade	phtography grade	reagent grade 3	industrial grade
content% ≥	99.0	99.0	98.0	98.0
aqueous solution reaction	qualified passed	qualified passed	qualified passed
chloride(Cl)% ≤	0.2	0.5	0.5	1.0
sulfate(SO4)% ≤	0.005	0.005	0.005
Ferrym(Fe)% ≤	0.0002	0.0002	0.0002	0.005
bromate(Bro3)% ≤	0.005	0.003	0.003
iodide(I)% ≤	qualified passed	0.01	0.01
heavy metal(Pb)% ≤	0.0002	0.0001	0.0005
arsenic(As) ≤	0.0005
loss on drying% ≤ Loss on	0.5	0.5	0.5	1.0
water insoluble% ≤	qualified	0.01	0.01
reference standard	1995-CHINA Pharmacopeia	ZBG85001-88	GB1277-77	GB1277-77

 

 

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