Sodium tetraborate Chemical Properties
- Melting point:
- 741 °C(lit.)
- Boiling point:
- 2.367 g/mL at 25 °C(lit.)
- vapor pressure
- 7.3 hPa (1200 °C)
- refractive index
- Flash point:
- storage temp.
- Store at +5°C to +30°C.
- H2O: 0.1 M at 20 °C, clear, colorless
- Specific Gravity
- 9.0-10.5 (25℃, 0.1M in H2O)
- Water Solubility
- 26 g/L (20 ºC)
- λ: 260 nm Amax: ≤0.020
λ: 280 nm Amax: ≤0.015
- Stable. Incompatible with powdered metals.
- NIST Chemistry Reference
- Sodium borate(1330-43-4)
- EPA Substance Registry System
- Sodium tetraborate (1330-43-4)
Sodium tetraborate Usage And Synthesis
Sodium borate, N8zB407.lOH20. also known as sodium tetraborate and sodium pyrobomte, is a white crystalline powder that melts at 120°C (248 °F). Sodium borate in its natural impure form is also known as borax, Sodium borate is used in glass and ceramic enamel mixes,detergents, fertilizers, pharmaceuticals, and photograph.
Borax is a noncombustible (an inherent fire retardant), bluish-gray or green, odorless crystalline powder or granules.
Pharmaceutic aid (alkalizing agent).
Refined borax (Na2B4O7) is an additive in laundry products such as soaps and water-softening compounds. Also used for cosmetics, body powders, and the manufacture of paper and leather. Borax is an environmentally safe natural herbicide and insecticide.
sodium borate is a preservative and emulsifier with astringent and anti-septic properties. It is also used as a pH adjuster. Sodium borate is the sodium salt of boric acid. It may cause skin dryness and irritation.
Anhydrous borax is produced from borax through high temperature fusion. On cooling, the clear, glass-like material is ground into fine white granules. Because of its higher bulk density, it is preferred where storage space is limited. It is used principally in the manufacture of glass, ceramics, and enamel.
Pale yellow solid or thick liquid with a faint odor of detergent. Mixes with water. Soap bubbles may be produced.
Air & Water Reactions
SODIUM PEROXOBORATE is incompatible with the following: Zirconium, strong acids, metallic salts . The true peroxoborate has been reported to detonate on light friction. The common "tetrahydrate" is not a peroxoborate, Sodium tetraborate is relatively stable under mild grinding with other substances.
No adverse effects from inhaling borax have been reported. Ingestion may cause acute or chronic effects; initial symptoms are nausea, vomiting, and diarrhea; these may be followed by weakness, depression, headaches, skin rashes, drying skin, cracked lips, and loss of hair; shock may follow ingestion of large doses and may interfere with breathing. Eye contact with powder or solutions may cause irritation; no chronic effects have been recognized, but continued contact should be avoided. Local skin irritation may result from contact with powder or strong solutions; the latter may cause chronic dermatitis on prolonged contact, and if skin is broken, enough boron may be absorbed to cause boron poisoning (symptoms are similar to those for ingestion).
Behavior in Fire: Compound melts to a glassy material that may flow in large quantities and ignite combustibles elsewhere.
Borate is a salt of boric acid (H3BO3). Sodium tetraborate, also called borax, sodium borate, sodium pyroborate and sodium tetraborate decahydrate (Na2B4O7?10H2O) is a type of borate, and is used as a fertilizer to reduce boron deficiency. It is a white salt, finely ground for fertilizer application. Two commercial products contain borax with varying degrees of hydration. Borax is also used for making boron frits.
A nuisance dust. Experimental reproductive effects. When heated to decomposition it emits toxic vapors of B.
Borax is used as a soldering flux, preservative against wood fungus; and as an antiseptic. Used in ant poisons, for fly control around refuse and manure piles, as a larvicide. It is used in the manufacture of enamels and glazes, fiberglass insulation; sodium perborate bleach; in tanning, cleaning compounds; for fireproofing fabrics and wood; and in artificial aging of wood.
UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9—Miscellaneous hazardous material, Technical Name Required.
Most of the water of hydration is removed from the decahydrate (see below) by evacuation at 25o for three days, followed by heating to 100o and evacuation with a high-speed diffusion pump. The dried sample is then heated gradually to fusion (above 966o), allowed to cool gradually to 200o, then tranferred to a desiccator containing P2O5 [Grenier & Westrum J Am Chem Soc 78 6226 1956]. [Becher in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I pp 794-795 1963.]
Dissolves in water forming a basic solution. Boron dust may form explosive mixture with air. Contact with strong oxidizers may be violent. Boron is incompatible with ammonia, bromine tetrafluoride, cesium carbide, chlorine, fluorine, interhalogens, iodic acid, lead dioxide, nitric acid, nitric oxide, nitrosyl fluoride, nitrous oxide, potassium nitrite, rubidium carbide, silver fluoride.
Borax, dehydrated: The material is diluted to the recommended provisional limit (0.10 mg/L) in water. The pH is adjusted to between 6.5 and 9.1 and then the material can be discharged into sewers or natural streams.
- Sodium sulfate
- BORAX DECAHYDRATE FOOD GRADE
- BORIC ACID,BORAX
- Sodium citrate
- Sodium bicarbonate
- Sodium chloride
- Sodium perborate
- Sodium hydroxide
- Sodium acetate
- Disodium monofluorophosphate
- Sodium benzoate
- STANDARD BUFFER
- Disodium succinate
- sodium tetraborate pealtahydrate
- Sodium tetraborate
- SODIUM TETRABORATE DECAHYDRATE NF,Sodium tetraborate decahydrate, ACS, 99.5-105.0%,Sodium tetraborate decahydrate, 99+%,Sodium tetraborate decahydrate, for analysis ACS, 99.5+%,Sodium tetraborate decahydrate, for analysis, 99.5%,SODIUM TETRABORATE, DECAHYDRATE BIO-REFINED,SODIUM TETRABORATE, DECAHYDRATE REAGENT (ACS),sodium tetraborate decahydrate, acs,Sodium tetraborate decahydrate, 99.5%, for analysis,Sodium tetraborate decahydrate, 99.5+%, for analysis ACS,Sodium tetraborate decahydrate, fo
- Ethylenediaminetetraacetic acid disodium salt
- 400-620-6333 021-20337333-801
- 400-666-7788 010-82848833-
- 400-660-8290 21-61259100-