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Classification: Chemical Auxiliary Agent
Model Number: KBR
Brand Name: Twin
Usage: Photo Grade
Type: kbr
Place of Origin: China (Mainland)
Purity: 99.5%
EINECS No.: 231-830-3
MF: Kbr
Other Names: 99.5% Potassium Bromide
CAS No.: 7758-02-3
M.W.: 119.01

Specifications

Photographic grade Potassium Bromide KBR

CHEMICAL FORMULA : KBr     M.W.: 119.01

DESCRIPTION: white crystalline, or  powder,  density in 2.75(at 25℃),melting point on 734℃,boiling point on 1435℃, dissolved in water and glycerin, with hygroscopicity, pH in 7.

APPLICATION: Be used as sensitive emulsion of film and photograph,developer and thicker, sedative in medicine, also be used to preparation of special soap, carving and printing.

CAS#:7758-02-3        HS:2827510000      EINECS No.: 231-830-3

  

 Name: Potassium Bromide

 

Manufacture: Twin International Co., Limited

 

  Quantity: 10T

 

Package: In 25kg net plastic woven bags.

Lined with plastic bags

         Item                      Specification                 Test Results

 

1. Appearance:                     White Crystal                    OK

2. Assay:  %:                         99.5                      99.51      

3. Degree of clearance:                 Passed                         OK

4.Chlorides (as Cl ) %:                  0.1                        0.02         

5.Sulphates (as SO4 ) %:                0.005                     < 0.005                  

6.Bromates(as BrO3)%:                0.001                      < 0.001

7.PH:                               5.58.5                       6.11

8. Moisture %:                        0.3                        0.20

9.Lead(as Pb)%:                       0.0003                     < 0.0003

10.Transmittance 5% at410nm:         96.0                         98          

11.Iron(as Fe2O3)ppm:               ≤2                             <2

  

 Comments: confirm to the standard

 Remark: We may make special specification according to customer's requirements.
Photographic grade Potassium Bromide KBR