YOTECH AMINO ACID FACTORY (R&D) OF SUZHOU
YOTECH FINE CHEMICAL OF SUZHOU
Product  

 


Potassium Bromide

Molecular formula: KBr    Molecular weight : 119.01

Uses: Used in the manufacture of photographic film developing agent, bleach film thickening agent, color photos. Medicine for a nervine, but also for the manufacture of special soap, engraving and lithography system crystal industrial synthesis.

Property:White crystal, no smell, taste salty and slightly bitter, Specific gravity 2.75 (25 ℃), Melting point 734 ℃, Boiling point 1435℃, soluble in water and glycerin, insoluble in alcohol and ether, slightly deliquescence, netural matter in the water .

CAS#: 7758-02-3          Customs No.: 28275100          MSDS: YB0404-01          Risk No.: Non-dangerous

Product specification

Export grade

Photographic grade

Reagent grade

Standard

USP-34

HG/T3570-2001

GB/T649-1999

Assay           　　　       ％

≥99.5

≥99.5

≥99.0

Water insoluble                      ％

≤0.005

≤0.01

≤0.005

Chloride (Cl)　　　　　％

≤0.2

≤0.5

≤0.2

Iodide(I)　　　　　   ％

≤0.05

≤0.01

≤0.005

Bromate(BrO32-)　　    ％

≤0.001

≤0.003

≤0.001

Ba             ％

≤0.0002

≤0.002

≤0.002

Ca             ％

≤0.0001

≤0.001

≤0.002

Mg             ％

≤0.0001

≤0.001

≤0.0005

Na              ％

≤0.005

≤0.005

≤0.02

Total Nitrogen (N)　　 ％

≤0.0005

≤0.0005

≤0.001

Bi　　          ％

≤0.0002

≤0.0005

≤0.0001

Sulfate (SO42-)        ％

≤0.002

≤0.005

≤0.01

Fe                     ％

≤0.00005

≤0.0001

≤0.0002

Cu                    ％

≤0.0005

≤0.002

-

Heavy metal (Pb)             ％

≤0.00002

≤0.00005

≤0.002

PH value (15％ Aq. solution/25℃)

6-7.5

6-7.5

5.5-8.5

Intermediate inspection

Appearance Identification

white crystal

white crystal

white crystal

Loss on dry (105℃/2H)  ％

≤0.1

≤0.2

≤0.2

Whiteness (70-90umGranularity)   ％

≥90

≥85

≥85

Transmission (15％ Aq. solution)   ％

≥98

≥96

≥95

Granularity (U.S.SCREEN)    mesh

90％ pass 30-100 mesh

90％ pass 30-100 mesh

90％ pass 30-100 mesh

Shelf life year

Two years

one year

Two years

Supply reference

Production process

Recrystallization method

Recrystallization method

Urea restore method

Packing

25KG bag/22T/(20')FCL

25KG bag/22T/(20')FCL

25KG bag/22T/(20')FCL

Specification of price

FCL

FCL

FCL

Quoted price           CNY/T

Validity period of quoted price

3 months

3 months

3 months

Note: special requirements are negotiable for customers with specific specifications.

         
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