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795429 Sigma-Aldrich

Sodium hydroxide

anhydrous, free-flowing, pellets, Redi-Dri, ACS reagent, ≥97%

Synonym: ‘Caustic soda’

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Properties

Quality Level   100
grade   ACS reagent
  Redi-Dri
  anhydrous
vapor density   >1 (vs air)
vapor pressure   <18 mmHg ( 20 °C)
  3 mmHg ( 37 °C)
assay   ≥97%
form   pellets
quality   free-flowing
impurities   ≤0.001% N compounds
  ≤0.02% NH4OH ppt.
  ≤1.0% Na2CO3
mp   318 °C (lit.)
solubility   water: soluble 1260 g/L at 20 °C
anion traces   chloride (Cl-): ≤0.005%
  phosphate (PO43-): ≤0.001%
  sulfate (SO42-): ≤0.003%
cation traces   Fe: ≤0.001%
  Hg: ≤0.1 ppm
  K: ≤0.02%
  Ni: ≤0.001%
  heavy metals (as Ag): ≤0.002%
SMILES string   [OH-].[Na+]
InChI   1S/Na.H2O/h;1H2/q+1;/p-1
InChI key   HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

Packaging

1, 2.5 kg in poly bottle

500 g in poly bottle

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
RIDADR 
UN 1823 8 / PGII
WGK Germany 
WGK 1
RTECS 
WB4900000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

Enjoy the Free-flowing Experience - Redi-Dri™

What is the most frustrating moment you have experienced in the lab? Inadequate chemicals for the reaction? Or rock-solid material as you open your bottle when you only need a small amount? If you ha...
Keywords: Environmental

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The Redi-Dri™ packaging system eliminates the common issue of clumping that is noted with many hygroscopic salts and buffers and provides free-flowing, ready-to- use material at all times. Don’t wast...
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Redi-Dri™ – 뭉치고 덩어리지지 않는 시약의 세계

Redi-Dri™ 패키징 시스템은 기존에 흡습성이 강한 시약에서 흔하게 볼 수 있는 뭉침과 덩어리짐을 방지하여 균일한 유동성으로 시약을 바로 시험에 이용이 가능하도록 디자인 된 제품입니다. 더 이상 시작 전부터 굳어버리는 제품으로 소중한 시간을 낭비하지 마세요. Redi-Dri™를 사용해보세요!

Peer-Reviewed Papers
15

References

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