Serum effect on the electrochemical behaviour of titanium, Ti6Al4V and Ti6Al7Nb alloys in sulphuric acid and sodium hydroxide

2004 ◽  
Vol 46 (9) ◽  
pp. 2241-2254 ◽  
Author(s):  
F Contu ◽  
B Elsener ◽  
H Böhni
Keyword(s):  
Sodium Hydroxide ◽  
Sulphuric Acid ◽  
Electrochemical Behaviour ◽  
Serum Effect

Potentiostatic studies of the corrosion of grey cast iron in sulphuric acid and sodium hydroxide solutions

1987 ◽  
Vol 27 (3) ◽  
pp. 221-228 ◽  
Author(s):  
Lammia M. Al-Shama ◽  
Jalal Mohammed Saleh ◽  
Naema A. Hikmat
Keyword(s):  
Cast Iron ◽  
Sodium Hydroxide ◽  
Sulphuric Acid ◽  
Grey Cast Iron ◽  
Grey Cast

Modification of Starch Using Itaconic Anhydride and its Characterizations

2021 ◽  
Vol 874 ◽  
pp. 149-154
Author(s):  
Dita Rengganis ◽  
Rachmawati Rachmawati
Keyword(s):  
Chemical Modification ◽  
Sodium Hydroxide ◽  
Sulphuric Acid ◽  
Thermal Behaviour ◽  
Modified Starch ◽  
Sem Micrographs ◽  
Itaconic Anhydride

In this study, the chemical modification of starch was conducted using itaconic anhydride as an esterifying agent. The results showed that sulphuric acid is more effective as a catalyst for esterification of starch compared to sodium hydroxide. The presence of attached itaconic anhyride in the starch affected the thermal behaviour and crystallinity of the resulting products as shown by the TGA, DSC, and the XRD data. In addition, the SEM micrographs also indicated that the modified starch exhibited a unique morphology in the form of block with different sizes ranging from 1 to 20 μm in length.

scholarly journals In vitro gas production parameters of sesame (Sesamum indicum) straw treated with sodium hydroxide, urea or sulphuric acid

2010 ◽  
Vol 1 (1) ◽  
pp. 243-243
Author(s):  
M. Malekkhahi ◽  
M. Danesh Mesgaran ◽  
A. Heravi Mousavi ◽  
A. Vakili ◽  
A. Tahmasbi ◽  
...  
Keyword(s):  
Sodium Hydroxide ◽  
Sulphuric Acid ◽  
Sesamum Indicum ◽  
Gas Production ◽  
Production Parameters ◽  
In Vitro Gas Production
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