Borax (Sodium Borate Pure)


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CAS No .: 1330-43-4 / 1303-96-4
EINECS / ELINCS No.: 215-540-4

Molecular Formula: B4O7 • 2Na
Synonyms: Borax. Sodium tetraborate. Sodium biborate. Sodium pyroborate. Salt of Persia. E-241.
Molecular Weight: 381.2

Physical and Chemical Data: White or almost white crystalline powder, colorless crystals or crystalline masses, efflorescent.
Soluble in water and very soluble in water to boil, easily soluble in glycerol. Melting point: 75 ° C (rapid heating).

Properties and uses:
It has a mild antiseptic and fungicidal action, used in skin infections, eczematous processes, antipruritic, and hairy scalp and scalp. Also as oral antiseptic in the form of mouthwashes for thrush, stomatitis, and aphthous ulcers, and in the form of creams for the prevention of relapses in vaginal candidiasis. As a solution it is used in pruritus of anus and vulva, bromhidrosis, ocular inflammations, and nasal washes. It is astringent and shows a mild detergent action, as it emulsifies the skin fat. In fact, it is used as a stabilizer for W / O emulsions (eg in Cold Cream). As the excipient it is also used to prepare buffer solutions. It is sometimes used to solubilize salicylic acid, since in aqueous solution it has an alkaline pH. However, the glycerin solutions are acidic in pH. It is also part of bath salts. Formerly antiseptic oral hygiene products used as mouthwashes, toothpaste, etc ... but it is deprecated by its toxicity. The solutions are made hot and must be filtered.

Dosage: Very variable, generally 2 - 10%.
Topical preparations of boric acid or its salts should not contain more than 5% borate ion.

Side effects:
It has the same adverse effects as boric acid. Acute poisoning can lead to vomiting, diarrhea, abdominal pain, erythematous skin and mucosal rash, and CNS stimulation or depression. It can also lead to renal failure, and more rarely, jaundice and liver damage. Death can occur from a collapse or shock, within 3 - 5 days. The slow excretion of the borate ion can lead to toxic accumulation during continued use. Symptoms of chronic intoxication include anorexia, gastrointestinal disorders, weakness, confusion, dermatitis, menstrual disorders, anemia, seizures, and alopecia. Inhalation of boric acid or borate sodium powder is irritating to the respiratory tract.

Precautions: "use exclusively external", and should not be applied to large areas of skin where there are wounds, burns, scrapes, etc., nor to be used in children under 3 years. Do not use to irrigate closed cavities such as vegita and vagina.

Incompatibilities: Strong acids, tannic acid, chloral hydrate, metal salts (lead silver, iron, aluminum ...), alkaline and alkaline earth salts (calcium, magnesium and potassium chlorides, sodium bicarbonate ...), alkaloids, menthol and gums .

Storage: In tightly closed containers. PROTECT FROM THE LIGHT.


Other concepts:

Borax (sodium borate) is a mild abrasive and barrier agent that is used in household laundry disinfectants and in some cosmetics and soaps. This mineral is mined from the depths of the earth or from surface deposits such as those found in Death Valley near Boron, California.

The borax powder was. It is found in white crystalline forms. It is cheap and has many industrial and cosmetic uses.

Borax has antiseptic and emulsifying properties. This is why it is used in personal care products such as mouthwashes, shampoos and beauty creams.
When combined with wax, borax has emulsifying properties that improve the consistency of cosmetic creams and lotions. For a long time it has been combined with hand soap to make an abrasive cleaner for auto mechanics and others with greasy hands. Borax is also alkaline, which makes it useful in skin tonics and cleansing formulas. By combining cleansing and exfoliation, borax soap removes bacteria, oil and dead skin cells associated with acne. As a natural mineral, borax is a common component in home-made recipes for products like scrubs and cold creams.



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