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Product Details:
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| Purity: | 99%min | Application: | Industry |
|---|---|---|---|
| Content: | 99% | Flash Point: | Not Applicable |
| Package: | 25 KG/BAG | Boiling Point: | 1390 °C |
| Molecular Formula: | NaOH | Solubility In Water: | 111 G/100 ML (20 °C) |
| Chemical Formula: | NaOH | Product: | Caustic Soda |
| Appearance: | White Solid | Einecs: | 215-185-5 |
| National Standard: | GB 1886.20-2016 | Autoignition Temperature: | Not Applicable |
| Density: | 2.13 G/cm³ |
Caustic Soda Sodium Hydroxide Used as Acid Neutralizers in the Food Industry
Sodium hydroxide, also known as caustic soda, caustic soda, caustic soda, and flake caustic soda, is an inorganic compound with the chemical formula NaOH and a relative molecular weight of 39.9970.
Pure sodium hydroxide is a white solid that is very soluble in water. Its aqueous solution has an astringent taste and a greasy feel. When sodium hydroxide is exposed to air, it easily absorbs moisture, and the surface becomes wet and gradually dissolves. This phenomenon is called deliquescence. Its relative density is 2.130. Melting point is 318.4℃. Boiling point is 1390℃. There are two types of commercially available caustic soda: solid and liquid. Pure solid caustic soda is white, in the form of blocks, flakes, rods, and granules, and is brittle; pure liquid caustic soda is a colorless, transparent liquid. Solid caustic soda has strong hygroscopicity. It is easily soluble in water, releases heat when dissolved, and its aqueous solution is alkaline and greasy; it is soluble in ethanol and glycerol. It is extremely corrosive and has a corrosive effect on fibers, skin, glass, ceramics, etc. It reacts with metal aluminum and zinc, non-metal boron and silicon to release hydrogen; it undergoes a disproportionate reaction with halogens such as chlorine, bromine, and iodine; it neutralizes with acids to produce salt and water.
| Index | Superior class | First class | Qualified | Inspection result |
| NaOH % ≥ | 99 | 98.5 | 98 | 98.6 |
| NaCl % ≤ | 0.03 | 0.05 | 0.08 | 0.03 |
| Fe2O3 % ≤ | 0.005 | 0.008 | 0.01 | 0.005 |
| Na2CO3 % ≤ | 0.5 | 0.8 | 1 | 0.6 |
| Result | This production NaOH quality has 98.5% ,inspected and accorded with index request of standard GB 209-2006 IS-IT- I –First class, and was judged of qualify. | |||
1. Used in papermaking and cellulose pulp production; used in the production of soap, synthetic detergents, synthetic fatty acids, and the refining of animal and plant oils and fats.
2. Used as a desizing agent, scouring agent, and mercerizing agent for cotton cloth in the textile printing and dyeing industry.
3. Used in the chemical industry to produce borax, sodium cyanide, formic acid, oxalic acid, phenol, etc. Used in the petroleum industry to refine petroleum products and used in oil field drilling mud.
4. Also used in the production of alumina, surface treatment of metallic zinc and metallic copper, as well as glass, enamel, leather making, medicine, dyes, and pesticides.
5. Food-grade products are used as acid neutralizers in the food industry, as peeling agents for citrus, peaches, etc., as detergents for empty bottles, empty cans, and other containers, as well as decolorizers and deodorizers.
6. Widely used basic analytical reagents. Prepare standard alkali solution for analysis. Absorbent for small amounts of carbon dioxide and water. Neutralization of acid. Sodium salt manufacturing. Widely used in papermaking, chemical industry, printing and dyeing, medicine, metallurgy (aluminum smelting), chemical fiber, electroplating, water treatment, tail gas treatment, etc.
7. Used as a neutralizer, complex masking agent, precipitant, precipitation masking agent, and color developer for thin layer analysis of ketosterols. Used in the preparation of sodium salts and saponifiers. Used in the manufacture of various sodium salts, soaps, pulp, finishing of cotton fabrics, silk, viscose fibers, regeneration of rubber products, metal cleaning, electroplating, bleaching, etc.
8. In cosmetic creams, this product and stearic acid act as emulsifiers in saponification, and are used to make vanishing creams, shampoos, etc.
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