Synonym: None
KBr M_r 119.00
CAS Number [7758-02-3]
EC Number 231-830-3
Merck 14,7618
RTECS TS7650000
MDL Number MFCD00011358
PubChem Substance ID 24854613
Purity ≥99.0%

Measured pH range: 5.6 – 9.1 at 25°C
Measured Conductivity Range: 430.8 – 440.4 mS/cm at 25°C
Measured Refractive Index Range: 1.38427 – 1.38495 at 20°C

Total Impurities ≤0.005% (insolubles)
Ba    ≤0.002%
BrO₃ ≤0.001%
Ca    ≤0.002%
Cl     ≤0.2%
Fe    ≤5 ppm
IO₃  ≤0.001%
I     ≤0.001%
Mg  ≤0.001%
Na  ≤0.02%
SO₄ ≤0.005%
Heavy metals (as Pb) ≤5 ppm

4.0 M Potassium bromide

1. Isolation of Ferritin Crystal from Rabbit Liver and Spleen. NORIKO MURAOKA, SHINJI NAKAJIMA, TAKESHI KATO, and TOSHIO SHIMADA. The Journal of Biochemistry Volume 60, Number 5 Pp. 489-495 (1966).

Hampton Research, first in crystallization since 1991, developing and delivering crystallization and optimization screens, reagents, plates, and other tools for the crystallization of biological macromolecules, including proteins (antibody), peptides (insulin), and nucleic acids (DNA).

• Products

|

• Gallery

|

• My Account

|

• Contact Us

|

• Quick Order
• Support

• Privacy Policy

|

• Terms and Conditions

• Products

|

• Gallery

|

• My Account

|

• Support

|

• Contact Us

|

• Quick Order

|

• Privacy Policy

|

• Terms and Conditions

© 2022 HAMPTON RESEARCH CORP.

| Website by Skyhound Internet

These siliconized glass cover slides provide a consistent, high quality finish for crystallization experiments. The hydrophobic surface produces a drop which “stands well” and does not flatten on the glass. The siliconized surface prevents the adhesion of crystals and precipitate onto the glass surface. Use Dow Corning Vacuum Grease (HR3-510) or Dow Corning 7 Release Compound (HR3-508) to seal cover slide to plate. Available in 12, 18 or 22 mm diameter circles and 22 mm diameter squares. Available in 0.22 mm or 0.96 mm glass thickness. The 0.96 mm thick slides are virtually unbreakable during crystallization handling.

Critical surface tension Untreated glass 78 dynes/cm Siliconized glass 31 dynes/cm Surface resistivity Untreated glass 1×10¹² ohms Siliconized glass 1.2 x 10¹³ ohms Coefficient of friction static, glass slide on glass slide Untreated 0.9-1.0 Siliconized 0.2-0.3 Protein adsorption (100 hours) Untreated glass 0.13 mg/mm2 Siliconized glass 0.01-0.02 mg/mm²

Siliconized circle cover slides for Tecan robot

12 mm x 0.22 mm Siliconized circle cover slides

12 mm x 0.22 mm Siliconized circle cover slides

12mmx0.96mmThick Siliconized circle cover slides

12mmx0.96mm Thick Siliconized circle cover slides

Hampton Research, first in crystallization since 1991, developing and delivering crystallization and optimization screens, reagents, plates, and other tools for the crystallization of biological macromolecules, including proteins (antibody), peptides (insulin), and nucleic acids (DNA).

• Products

|

• Gallery

|

• My Account

|

• Contact Us

|

• Quick Order
• Support

• Privacy Policy

|

• Terms and Conditions

• Products

|

• Gallery

|

• My Account

|

• Support

|

• Contact Us

|

• Quick Order

|

• Privacy Policy

|

• Terms and Conditions

© 2022 HAMPTON RESEARCH CORP.

| Website by Skyhound Internet

45° Angled Forcep

Hampton Research, first in crystallization since 1991, developing and delivering crystallization and optimization screens, reagents, plates, and other tools for the crystallization of biological macromolecules, including proteins (antibody), peptides (insulin), and nucleic acids (DNA).

• Products

|

• Gallery

|

• My Account

|

• Contact Us

|

• Quick Order
• Support

• Privacy Policy

|

• Terms and Conditions

• Products

|

• Gallery

|

• My Account

|

• Support

|

• Contact Us

|

• Quick Order

|

• Privacy Policy

|

• Terms and Conditions

© 2022 HAMPTON RESEARCH CORP.

| Website by Skyhound Internet

Locking Forcep

Hampton Research, first in crystallization since 1991, developing and delivering crystallization and optimization screens, reagents, plates, and other tools for the crystallization of biological macromolecules, including proteins (antibody), peptides (insulin), and nucleic acids (DNA).

• Products

|

• Gallery

|

• My Account

|

• Contact Us

|

• Quick Order
• Support

• Privacy Policy

|

• Terms and Conditions

• Products

|

• Gallery

|

• My Account

|

• Support

|

• Contact Us

|

• Quick Order

|

• Privacy Policy

|

• Terms and Conditions

© 2022 HAMPTON RESEARCH CORP.

| Website by Skyhound Internet

In determining what glass or quartz capillary is right for you, please refer to the “Linear Absorption Coefficient µ cm-1” table. This table indicates the amount of radiation that is absorbed by the capillary during x-ray data collection.

For 0.1 mm to 2.0 mm capillaries the open end capillary tube base size is 3.0 +/- 0.15 mm OD x 0.13 +/- 0.10 mm Wall thickness.

The Diameter is measured  about 30 to 40 mm from the closed end (measuring instrument: LaserMicrometer LS 7500) The tolerances are as follows. 

Diameter    Tolerance              Minimum Diameter    Maximum Diameter

0.1 mm       +/-0.05 mm          0.05 mm                     0.15 mm
0.2 mm       +/-0.05 mm          0.15 mm                     0.25 mm 
0.3 mm       +/-0.05 mm          0.25 mm                     0.35 mm  
0.4 mm       +/-0.05 mm          0.35 mm                     0.45 mm 
0.5 mm       +/-0.05 mm          0.45 mm                     0.55 mm 
0.6 mm       +/-0.05 mm          0.55 mm                     0.65 mm 
0.7 mm       +/-0.05 mm          0.65 mm                     0.75 mm 
0.8 mm       +/-0.05 mm          0.75 mm                     0.85 mm 
0.9 mm       +/-0.05 mm          0.85 mm                     0.95 mm 
1.0 mm       -0.05 +0.25 mm    0.95 mm                     1.25 mm 
1.5 mm       +/-0.25 mm          1.25 mm                     1.75 mm 
2.0 mm       +/-0.25 mm          1.75 mm                     2.25 mm 

Borosilicate Specifications
Glass type Borosilicate glass 3.3
Density 2.23 g/cm³
Poisson’s number 0.20
Transformation temperature Tg= 525 degrees Celsius
Annealing point approximately 560 degrees Celsius 
Softening point approximately 825 degrees Celsius 
Working point 1260 degrees Celsius 
Refractive index 1.473 at 20 degrees Celsius; 587.6 nm
Hydrolytic resistance, class 1 (DIN ISO 719) 
Acid resistance, class 1 (DIN 12 116) 
Alkalai resistance, class 2 (DIN ISO 695) 
Chemical composition SiO₂ 81.0% 
Na₂O 3.5%
Al₂O₃ 2.0%
K₂O 0.5%
B₂O₃ 13.0%

Capillaries have only been tested at atmospheric pressure (760 mmHg (torr), 29.92 inHg, 14.696 psi). Use at other pressures has not been tested.

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Glass Number 50 Capillary

Hampton Research, first in crystallization since 1991, developing and delivering crystallization and optimization screens, reagents, plates, and other tools for the crystallization of biological macromolecules, including proteins (antibody), peptides (insulin), and nucleic acids (DNA).

• Products

|

• Gallery

|

• My Account

|

• Contact Us

|

• Quick Order
• Support

• Privacy Policy

|

• Terms and Conditions

• Products

|

• Gallery

|

• My Account

|

• Support

|

• Contact Us

|

• Quick Order

|

• Privacy Policy

|

• Terms and Conditions

© 2022 HAMPTON RESEARCH CORP.

| Website by Skyhound Internet