1. Is a common and important base
1. Characters
Melt white grain or stripes are often made into small flakes. Easy
to absorb moisture and carbon dioxide in the air. 1g soluble in
boiling water 0.9ml water chiller, 0.3ml, 7.2ml, ethanol, 4.2ml,
methanol, soluble in Glycerin. Soluble in water, ethanol, or when
solution when mixed with acids produced theatrical heat. Solution
is strongly alkaline. The relative density of 2.*3. **8 ° c melting
point. ***0 ° c boiling point. Half of the deaths (mice,
Intraperitoneal) *0mg/kg. Corrosive. Its aqueous solution a puckery
taste and creamy. Sodium hydroxide for carbon dioxide absorption,
as well as biological experiment commonly used chemicals. Water
absorption, so often certain neutral or alkaline gas desiccant such
as: O2,H2,NH3.
2. Uses
the wider use of wastewater treatment chemicals, basic analytical
reagent, the preparation of analyses by standard alkaline liquid, a
small amount of carbon dioxide and moisture absorption agent, and
sodium salt of the acid manufacture. Manufacture of other reagents
containing hydroxyl ions; in paper-making, printing and dyeing,
waste water treatment, electroplating, are important uses of
chemical drilling; domestic brands: tianhui card, sky card, gold
card. Sodium hydroxide is a good catalyst for many organic
reactions.
3. Security measures
Sealed packaging, store in a cool dry place. With acids, ammonium
class, easy (can) fuel such storage and distribution. Not come into
contact with skin, skin (eyes) contact, rinse with flowing,
applying boric acid solution. If eating, gargle with water,drink
milk, soy milk or egg whites (and other acidic food-friendly) and
need to seek medical advice immediately.
4.
Specification
| Specification |
Purity
component |
*6% |
*9% |
| NaOH |
≥ *6% |
≥ *9% |
| Na2CO3 |
≤ 1.4% |
≤ 0.5% |
| NaCl |
≤ 2.8% |
≤ 0.*3% |
| Fe2O3 |
≤ 0.*1% |
≤ 0.**5% |
