Sodium nitrite

Product

Sodium nitrite is an inorganic compound with the chemical formula NaNO2. It is a white to slightly yellowish crystalline powder that is extremely soluble in water and ammonia and slightly soluble in organic solvents like alcohol and diethyl ether and it is highly hygroscopic in nature. Nowadays it is believed that it can help with organ transplants and leg vascular problems, while preventing heart attacks and sickle cell disease. It enters in human body through green, leafy vegetables or root vegetables, such as lettuce, spinach and carrots, and some drinking water. At most, about five percent of a person’s daily intake comes from cured meats.

Many industrial applications of sodium nitrite are based on its oxidizing properties and its decomposition in an acid solution to nitrous acid based on this it is used in organic synthesis and production of azo dyes, Rubber industry, Corrosion inhibition, Alkaline detinning of scrap tinplate, Heat transfer salts, Metal coatings, Blowing compounds, Textile dying, photography and Meat curing.

Sodium nitrite has several applications in the fight against disease and organ damage. It may be used to improve blood circulation in the damaged part. It is used to heal cardiovascular conditions by strengthening or repairing damaged blood vessels, it is achieved by combining with sodium nitrate. It is also used as a vasodilator, intestinal relaxant, bronchodilator, and an antidote to cyanide poisoning, and hydrogen sulfide poisoning. Sodium nitrite is often used to form dyes especially for the coloring of linens.

In most of the cases, meats are cured using sodium nitrite. Curing meat with this chemical helps preserve the meat and delay the onset of botulism. Sodium nitrite is common in fertilizer, as well as it has the characteristic properties of herbicides and insecticides. It is preferred over the other compounds because it can help kill off living organisms that pose a threat to plant life without harming the flora itself.

It is commonly used in the food industry as a stabilizer and an additive. It has antimicrobial properties that inhibit the growth of harmful pathogens and disease-causing bacteria.

Sodium nitrite is used as a bleaching and dyeing agent. It is used to make basic dye, acid dye, and direct dye, and sulfur dye, diazo and azoic dyes. It is also used as an inhibitor of polymer, anti-freeze liquids, lubricants, rubber-processing, pulp-and-paper industries, industrial and household cleaners, and as a raw material in the production of products such as caffeine and saccharine.

Health and Disease Applications

Sodium nitrite may have several applications in the fight against disease and organ damage. Sodium nitrite may be used to improve blood circulation, particularly to parts of the body that are injured or damaged. Low concentrations of sodium nitrite can be used to treat diseases. Sodium nitrite in combination with sodium nitrate can heal cardiovascular conditions by strengthening or repairing damaged blood vessels. It is a vasodilator, intestinal relaxant, bronchodilator, and an antidote to cyanide poisoning, and hydrogen sulfide poisoning.

Dye Creation

Sodium nitrite is often used to form dyes for the coloring of linens. The dye-creation process can be dangerous when chemicals such as sodium nitrite are used.

Curing Meat

In most cases, meats are cured using sodium nitrite. Although some meats require sodium nitrate a close relative of sodium nitrite for proper curing, these are often meats requiring a longer aging process. Curing meat with this chemical helps preserve the meat and delay the onset of botulism, a deadly disease that can be borne in spoiled foods. Curing also infuses the meat with a distinct flavor and causes the meat to develop a bright pink hue when cooked.

Botanical Uses

Sodium nitrite is common in fertilizer, as well as in some herbicides and insecticides. It’s used because it can help kill off living organisms that pose a threat to plant life without harming the flora itself.

Food Preservative

Sodium nitrite is commonly used in the food industry as a stabilizer and an additive. It has antimicrobial properties that inhibit the growth of harmful pathogens and disease-causing bacteria. Sodium nitrite is used to preserve fish and meats, such as hot dogs, smoked fish and luncheon meats. It prevents meat from developing botulism, which is a serious disease caused by the bacterium Clostridium botulinum in food. The Food and Drug Agency limits the use of sodium nitrite to 200 parts per million in food products in the United States.

Pigments and Dyes

Sodium nitrite is used as a bleaching and dyeing agent. It is used to make basic dye, acid dye, and direct dye, and sulfur dye, diazo and azoic dyes. Sodium nitrite dye irritates the respiratory system, eyes and skin, and should be handled with care. Its ingestion is toxic, and sodium nitrite can prove to be an explosion hazard if heated with a flammable material.

Other Uses

Other uses of sodium nitrite include the manufacture of herbicides, organic insecticides, decaling of cast iron and steel, as an inhibitor of polymer, anti-freeze liquids, lubricants, rubber-processing, pulp-and-paper industries, industrial and household cleaners, and as a raw material in the production of products such as caffeine and saccharine.

Sodium Nitrite Injection

Sodium nitrite injection is indicated for sequential use with sodium thiosulfate for the treatment of acute cyanide poisoning that is judged to be life-threatening. When the diagnosis of cyanide poisoning is uncertain, the potentially life-threatening risk associated with Sodium Nitrite is injected. Sodium nitrite is an antidote for cyanide poisoning. Cyanide poisoning can be rapidly fatal. When hydrogen cyanide gas or large doses are taken, toxicity occurs within a few seconds, and death occurs within minutes. With smaller doses, toxicity occurs within minutes. Sodium nitrite is generally used in conjunction with sodium thiosulfate, and often amyl nitrite, in the treatment of cyanide poisoning. Cyanide has a high affinity for ferric ions, and reacts readily with the ferric ion of mitochondrial cytochrome oxidase. Sodium nitrite reacts with haemoglobin to form methaemoglobin, and cyanide preferentially binds to methaemoglobin, restoring cytochrome oxidase activity. As cyanide dissociates from methaemoglobin, it is converted to the relatively non-toxic.

Safety

While this chemical will prevent the growth of bacteria, it can be toxic in high amounts for animals, including humans. Sodium nitrite is an irritant to the eyes, lungs and skin, is toxic when consumed and has the potential to explode when heated. If sodium nitrite is defanged by preventing it from becoming a nitrosoamine, the risks associated with it are minimal. Although it is toxic, the FDA has classified it as generally recognized as safe. The fatal dose of this chemical is between 22 to 23 mg per kilogram of body weight.

PRODUCT IDENTIFICATION

CAS NO. : 7632-00-0
Formula : NaNO2
Molar mass : 68.9953 g/mol
Appearance : white or slightly yellowish solid
Density : 2.168 g/cm3
Melting point : 271 °C, 544 K, 520 °F (decomp.)
Solubility in water : 84.8 g/100 mL (25 °C)
Solubility in methanol : 4.4 g/100 mL
Slightly soluble in diethyl ether : 0.3 g/100 mL
Solubility in ammonia : Highly soluble
Refractive index (nD) : 1.65

PRODUCT IDENTIFICATION

CAS NO. 7632-00-0
Formula NaNO2
Molecular Wt 69.00
Synonyms Nitrous acid, sodium salt

PHISICAL AND CHEMICAL PROPERTIES

Physical state Solid. (Powdered solid.)
Odor Odorless
Taste Saline (Slight)
Molecular Wt 69 g/mole
Color White to slightly yellowish
Boiling Point 320°C (608°F)
Melting Point 271°C (519.8°F)
Specific Gravity 2.2 (Water = 1)
Dispersion Properties See solubility in water, methanol
Solubility Easily soluble in hot water. Soluble in cold water. Partially soluble in methanol.Very slightly soluble in diethyl ether.

FIRST AID MEASURES

Eye Contact:
Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention immediately.

Skin Contact:
In case of contact, immediately flush skin with plenty of water. Cover the irritated skin with an emollient. Remove contaminated clothing and shoes. Cold water may be used.Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention.

Serious Skin Contact
Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate medical attention.

Inhalation
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention immediately.

Serious Inhalation
Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or waistband. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth resuscitation. WARNING: It may be hazardous to the person providing aid to give mouth-to-mouth resuscitation when the inhaled material is toxic, infectious or corrosive. Seek immediate medical attention.

Ingestion
If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical attention immediately.

Serious Ingestion: Not available.

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