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Borax

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Borax

EINECS 215-540-4
CAS No. 1303-96-4 Density 1.73 g/mL at 25 °C(lit.)
Solubility water: 0.1 M at 20 °C, clear, colorless Melting Point 75 °C
Formula Na2B4O7.10(H2O) Boiling Point 320°C
Molecular Weight 381.42 Flash Point
Transport Information UN 1458 Appearance Colourless to grey-white crystals or powder
Safety 22-24/25-36/37 Risk Codes 62
Molecular Structure Molecular Structure of 1303-96-4 (Sodium tetraborate decahydrate) Hazard Symbols HarmfulXn
Synonyms

Borax(8CI);Borascu;Borax decahydrate;Boric acid (H2B4O7), disodium salt,decahydrate;Boricin;Boron sodium oxide (B4Na2O7), decahydrate;Bura;Disodium tetraborate decahydrate;Gerstley borate;Sodium biborate decahydrate;Sodiumborate (Na2B4O7), decahydrate;Sodium pyroborate;Sodium pyroboratedecahydrate;Solubor;Solubor DF;Sodium tetraborate;

 

Borax Specification

Borax, with the CAS NO.1303-96-4, also known as sodium borate, sodium tetraborate, or disodium tetraborate, is an important boron compound, a mineral, and a salt of boric acid. Powdered borax is white, consisting of soft colorless crystals that dissolve easily in water.

Preparetion of Borax: Borax is a product of evaporation from shallow lakes. It can also be produced synthetically from other boron compounds.

Uses of Borax : It is used in antiseptics and medicines, as a flux in smelting, soldering, and welding operations; as a deoxidizer in nonferrous metals; as a neutron absorber for atomic energy shields; in rocket fuels; and as extremely hard, abrasive boron carbide (harder than corundum).

When you are using this chemical, please be cautious about it as the following:
1. Do not breathe dust;
2. Avoid contact with skin and eyes;
3. Wear suitable protective clothing and gloves;

You can still convert the following datas into molecular structure:
(1)InChI=1S/B4O7.2Na/c5-1-9-3(7)11-4(8)10-2-6;;/q-2;2*+1;
(2)InChIKey=RPAYJVFLNVKVRS-UHFFFAOYSA-N;
(3)SmilesO=BO[B](O[B](OB=O)O[Na])O[Na];

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LDLo oral 3gm/kg (3000mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1289, 1935.
guinea pig LD50 oral 5330mg/kg (5330mg/kg)   "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964Vol. -, Pg. 693, 1964.
infant LDLo oral 1gm/kg (1000mg/kg)   Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. Vol. -, Pg. 144, 1966.
man LDLo oral 709mg/kg (709mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

CARDIAC: CHANGE IN RATE

GASTROINTESTINAL: NAUSEA OR VOMITING
JAMA, Journal of the American Medical Association. Vol. 76, Pg. 378, 1921.
mouse LD50 intraperitoneal 2711mg/kg (2711mg/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Archives Internationales de Pharmacodynamie et de Therapie. Vol. 143, Pg. 144, 1963.
mouse LD50 intravenous 1320mg/kg (1320mg/kg)   "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964Vol. -, Pg. 693, 1964.
mouse LD50 oral 2gm/kg (2000mg/kg)   "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964Vol. -, Pg. 693, 1964.
rabbit LDLo subcutaneous 150mg/kg (150mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1289, 1935.
rat LD50 oral 2660mg/kg (2660mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C48, 1991.

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