| Identification | Back Directory | [Name]
Sodium tetraborate | [CAS]
1330-43-4 | [Synonyms]
fr28
FB 48
BORAX
Na2B4O7
Dehybor
B4-Na2-O7
rasorite65
DEHYBOR(R)
FUSED BORAX
BORAX GLASS
BUFFER 4.01
BORAX, FUSED
Antipyoninum
GLASS BORATE
SODIUM BORATE
anhydrousborax
Anhydrous borax
BUFFER SOLUTION
BUFFER PH 10.01
SODIUM BIBORATE
sodiumboronoxide
borax(anhydrous)
borax,dehydrated
fusedsodiumborate
pH standard－Borax
Borax glass-ground
SODIUM TETRABORATE
SPECTROMELT(R) B 10
BoraxAnhydrous98.5%
BORAX BUFFER SOLUTION
DI-SODIUM TETRABORATE
sodiumborate,anhydrous
SODIUMBORATE,TECHNICAL
Buffer solution pH 9.2
SodiuM tetraborate 99%
Sodium borate anhydrous
BORIC ACID DISODIUM SALT
Sodium borate solution
BUFFER/INDICATOR SOLUTION
ZINC ACETATE SOLUTION PHE
sodiumtetraborate(na2b4o7)
sodiumtetraborate,anhydrous
ANYHYDROUSSODIUMTETRABORATE
SODIUM TETRABORATE, 99.999%
Sodium tetraborate buffer
ANHYDROUSDISODIUMTETRABORATE
BORAX ANHYDROUS extrapure AR
sodiumtetraborate(anhydrous)
boricacid(h2b4o7),sodiumsalt
di-Sodiumtetraborate,anhydrou
ZIRCONYL NITRATE SOLUTION PHE
Buffer solution pH 9.00 (20°C)
boricacid(h2b4o7),disodiumsalt
Disodium tetraborate,anhydrous
Borax, 5 Mole (Pentahydrate)
Buffer solution HPCE pH 9.0
Sodiumtetraborate,anhydrous,99+%
SODIUM TETRABORATE GRANULATED, DRY
borates,tetra,sodiumsalt,anhydrous
BUFFER SOLUTION SODIUM TETRABORATE
borates,tetra,sodiumsalts(anhydrous)
SODIUM TETRABORATE, ANHYDROUS REAGENT
Sodium tetraborate buffer solution
"Sodium tetraborate, anhydrous/ 98+%"
"Sodium tetraborate, anhydrous/ 99.9%"
SPECTROMELT B 10 DI-SODIUM TETRABORATE
borates,tetra,sodiumsalts(pentahydrate)
SODIUM TETRABORATE ANHYDROUS, DECOMPOSER
DI-SODIUM TETRABORATE ANHYDROUS SUPRAPUR
DI-SODIUM TETRABORATE ANHYDROUS GR FOR A
"Sodium tetraborate, anhydrous/ 99.998%"
ZINC CHLORIDE - FORMIC ACID SOLUTION PHE
sodium tetraborate, anhydrous, puratronic
Sodium tetraborate, anhydrous, for analysis
di-Sodium tetraborate anhydrous, extra pure
di-Sodium tetraborate anhydrous for analysis
SodiuM tetraborate 99.998% trace Metals basis
di-Sodium tetraborate anhydrous 99.99 Suprapur
Sodium tetraborate,99.5%,for analysis,anhydrous
SodiuM tetraborate, 98%, for analysis, anhydrous
pH standard－Sodium Tetraborate Decahydrate(Borax)
Sodium tetraborate, 99.5%, anhydrous, for analysis
Sodium tetraborate, anhydrous, for analysis, 99.5%
Sodium tetraborate, anhydrous, 99.5% (metals basis)
Sodium tetraborate, anhydrous, 99.95% (metals basis)
Borax Anhydrous puriss. p.a., anhydrous, >=98.0% (T)
Sodiumtetraborate,anhydrous(99.999%-B)(50ppmK)PURATREM
SodiuM tetraborate, anhydrous, for analysis, 99.5% 100GR
Sodium tetraborate, anhydrous (99.998%-B) (50 ppm K) PURATREM
Sodium tetraborate, anhydrous, Puratronic, 99.998% (metals basis)
Sodium tetraborate, anhydrous, Puratronic(R), 99.998% (metals basis)
Boric acid - Sodium tetraborate buffer solution, Sodium tetraborate buffer solution | [EINECS(EC#)]
215-540-4 | [Molecular Formula]
B4Na2O7 | [MDL Number]
MFCD00081185 | [MOL File]
1330-43-4.mol | [Molecular Weight]
201.22 |
| Chemical Properties | Back Directory | [Appearance]
Borax is a noncombustible (an inherent
fire retardant), bluish-gray or green, odorless crystalline
powder or granules. | [Melting point ]
741 °C(lit.)
| [Boiling point ]
1575°C | [density ]
2.367 g/mL at 25 °C(lit.)
| [vapor pressure ]
7.3 hPa (1200 °C) | [refractive index ]
1.501 | [Fp ]
1575°C | [storage temp. ]
Store at +5°C to +30°C. | [solubility ]
H2O: 0.1 M at 20 °C, clear, colorless
| [form ]
Solid | [color ]
White | [Specific Gravity]
2.367 | [PH]
9.0-10.5 (25℃, 0.1M in H2O) | [Stability:]
Stable. Incompatible with powdered metals. | [Water Solubility ]
26 g/L (20 ºC) | [Sensitive ]
Hygroscopic | [λmax]
λ: 260 nm Amax: ≤0.020
λ: 280 nm Amax: ≤0.015 | [Merck ]
14,8590 | [Exposure limits]
ACGIH: TWA 2 mg/m3; STEL 6 mg/m3
NIOSH: TWA 1 mg/m3 | [InChIKey]
UQGFMSUEHSUPRD-UHFFFAOYSA-N | [Uses]
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. | [NIST Chemistry Reference]
Sodium borate(1330-43-4) | [EPA Substance Registry System]
Boron sodium oxide (B4Na2O7)(1330-43-4) |
| Hazard Information | Back Directory | [Chemical Properties]
white solid | [General Description]
Pale yellow solid or thick liquid with a faint odor of detergent. Mixes with water. Soap bubbles may be produced. | [Air & Water Reactions]
Water soluble. | [Reactivity Profile]
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. | [Health Hazard]
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). | [Fire Hazard]
Behavior in Fire: Compound melts to a glassy material that may flow in large quantities and ignite combustibles elsewhere. | [Hazard]
Toxic. | [Potential Exposure]
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. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts
the skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from
exposure, begin rescue breathing (using universal precautions,
including resuscitation mask) if breathing has
stopped and CPR if heart action has stopped. Transfer
promptly to a medical facility. When this chemical has
been swallowed, get medical attention. Give large quantities
of water and induce vomiting. Do not make an unconscious
person vomit.
Personal Protective Methods: Exposed workers should be
educated in the proper use of protective equipment and
there should be strict adherence to ventilating provisions in
work areas. Workers involved with the manufacture of
boric acid should be provided with masks to prevent inhalation
of dust and fumes. | [Shipping]
UN3077 Environmentally hazardous substances,
solid, n.o.s., Hazard class: 9; Labels: 9—Miscellaneous
hazardous material, Technical Name Required. | [Incompatibilities]
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. | [Waste Disposal]
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. | [Production Methods]
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. | [Agricultural Uses]
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. | [Purification Methods]
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.] |
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