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Sodium Hydroxide Pellets
Characteristics:
Sodium hydroxide pellets are odorless, white, solid hemispheres of uniform diameter and thickness. Their geometry reduces dusting and caking so the product stores and handles better. They also are deliquescent.
Properties:
| Chemical formula |
NaOH |
| Molecular weight |
40.00 |
| Absolute density, g/cm3 |
2.13 |
| Melting point, °C |
318.4 |
| Boiling point, °C |
1390 |
| Solubility in water*, g/100g H2O |
42@ 0°C
114 @ 25°C
347 @ 100°C |
Specifications:
| |
Reagent ACS |
NF / FCC |
| Assay, % NaOH |
97.0 minimum |
95.0-100.5 (total alkali) |
Maximum Limits of Impurities:
| Potassium carbonate (K2CO3), % |
1.0 |
3.0 |
| Chloride (Cl), % |
0.005 |
-- |
| Nitrogen compounds (N), % |
0.001 |
-- |
| Phosphate (PO4), % |
0.001 |
-- |
| Sulfate (SO4),
% |
0.003 |
-- |
| Ammonium hydroxide precipitate, % |
0.02 |
-- |
| Heavy metals (as Ag), % |
0.002 |
-- |
| Heavy metals (as Pb), % |
-- |
0.002 |
| Iron (Fe), % |
0.001 |
-- |
| Nickel (Ni), % |
0.001 |
-- |
| Potassium (K), % |
0.02 |
To pass test |
| Mercury (Hg) |
0.1 ppm |
0.1 mg/kg |
| Insoluble substances and organic matter, ppm |
-- |
To pass test |
| Lead (Pb), ppm |
-- |
10 mg/kg |
| Copper (Cu), ppm |
-- |
-- |
| Arsenic (As), ppm |
-- |
3 |
Product Markets & Uses:
| Chemicals |
• Neutralizer and alkalinity control in analytical chemistry.
• Absorption of NOx, SO3 and CO2 in gas streams.
• Manufacture of high-purity sodium compounds. |
| Electronics |
• Etchant in semiconductor wet processing. |
| Food |
• pH and alkalinity adjustment.
• Lye peeling of vegetables and fruits. |
| Pharmaceuticals |
• pH and alkalinity adjustment.
• Reactant, catalyst and processing aid.
• Softener for epidermis. |
| Photography |
• Photoengraving and lithography. |
| Soaps |
• Hydrolyzing fats. |
| Textiles |
• Bleaching textiles and mercerizing cotton. |
Grades, Forms & Shipping Containers:
| Reagent ACS (CODE 115-2255) |
110 lb. fiber drum with poly bag liner. |
| NF / FCC (CODE 115-2254) |
110 lb. fiber drum with poly bag liner. |
ACS Reagent Grade is not for use as a food or drug additive.
Shipping Location ACS, NF / FCC:
Shipping Regulations:
| Hazard class: |
8 |
| Label: |
Corrosive |
| Proper Shipping Name: |
Sodium Hydroxide, Solid |
| UN Number: |
UN1823 |
| Packing group: |
II |
Recommended Shelf Life:
Estimated at 3 years from date of manufacture. Some caking may develop within 1 year.
Safety:
Sodium hydroxide causes severe burns to the skin, eyes and mucous membranes. Avoid breathing dust and use with adequate ventilation. May be fatal if swallowed. While making Solutions, add slowly with stirring to avoid violent spattering. Wear proper protective equipment when handling, and wash thoroughly after use.
As with any chemical, sodium hydroxide requires care in handling. Anyone responsible for the procurement, use or disposal of this product should familiarize himself and those handling the product with the appropriate safety and handling precautions. This information is available in the Material Safety Data Sheet, which may be obtained by contacting our Customer Service Group.
In the event of an emergency with this product, call the 24-hour General Chemical emergency number: (800) 631-8050.
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All statements, information, and data given herein are believed to be
accurate and reliable but are presented without guaranty, warranty or
responsibility of any kind, express or implied. The user should not assume
that all safety measures are indicated or that other measures may not be
required. All suggestions made herein are intended for use by persona
having requisite knowledge and skill, and are to be used at their own risk.
General Chemical assumes no responsibility for this information, and
potential purchasers waive all claims they may have and agree to indemnify
and hold harmless General Chemical from any claims or damages they may later
allege relative to their reliance upon these suggestions.
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