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1330-43-4

Basic Information
CAS No.: 1330-43-4
Name: Sodium tetraborate
Molecular Structure:
Molecular Structure of 1330-43-4 (Sodium tetraborate)
Formula: Na2B4O7
Molecular Weight: 201.22
Synonyms: Boric acid(H2B4O7), disodium salt (8CI);Sodium tetraborate (Na2B4O7) (7CI);Anhydrousborax;Borax glass;Disodium tetraborate;FR 28;Fireless B;Fireless B Liquid;Fused Borax;Rasorite 65;Sodium biborate;Sodium boron oxide(Na2B4O7);Spraybor;
EINECS: 215-540-4
Density: 2.367 g/cm3
Melting Point: 741 °C(lit.)
Boiling Point: 1575°C
Flash Point: 1575°C
Solubility: water: 0.1 M at 20 °C, clear, colorless
Appearance: white solid
Hazard Symbols: HarmfulXn,IrritantXi
Risk Codes: 62-63-36/38-36/37/38
Safety: 36/37-24/25-26-36-23
Transport Information: UN 1760 8/PG 2
PSA: 92.27000
LogP: -2.10280
Downstream Products
138926-19-9
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    Product Name Sodium tetraborate CAS 1330-43-4 Molecular Formula B4Na2O7 Molecular Weight

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  • Sodium tetraborate

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  • Sodium Borate

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  • Sodium tetraborate cas  1330-43-4

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    1330-43-4

    Sodium tetraborate cas 1330-43-4

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Chemistry

Molecular Structure of Sodium tetraborate (CAS No.1330-43-4):

Molecular Formula: Na2B4O7
Molecular Weight: 201.21
IUPAC Name: Disodium [oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate
CAS No: 1330-43-4
EINECS: 215-540-4
H bond acceptors: 7
H bond donors: 2
Freely Rotating Bonds: 8
Density: 2.367 g/mL at 25 °C(lit.)
Boiling Point: 1575°C
Flash Point: 1575°C
Polar Surface Area: 102.29 Å2
Density: 2.367 g/cm3
Melting Point: 741 ºC
Water Solubility: 26 g/L (20 ºC)
Sensitive: Hygroscopic
Stability: Stable. Incompatible with powdered metals.
Product Categories: Inorganics
Classification Code: Reproductive Effect
Canonical SMILES: B(=O)OB([O-])OB([O-])OB=O.[Na+].[Na+]
InChI: InChI=1S/B4O7.2Na/c5-1-9-3(7)11-4(8)10-2-6;;/q-2;2*+1
InChIKey: RPAYJVFLNVKVRS-UHFFFAOYSA-N

Uses

  Sodium tetraborate (CAS No.1330-43-4) has been used to take advantage of the co-complexing ability of borate with other agents in water to complex various substances.
  Sodium tetraborate and a suitable polymer bed are used to chromatograph non-glycosylated hemoglobin differentially from glycosylated hemoglobin, which is an indicator of long term hyperglycemia in diabetes mellitus.
  A mixture of Sodium tetraborate and ammonium chloride is used as a flux when welding iron and steel. And it can also be used mixed with water as a flux.
  It can be used as a food additive in some countries but is banned in the United States. 
  It also can be used as a component of detergents, ingredient in enamel glazes,etc.

Toxicity Data With Reference

LD50 score is tested at 2.66 g/kg in rats.

Consensus Reports

  Reported in EPA TSCA Inventory.

Safety Profile

Safety Information of Sodium tetraborate (CAS No.1330-43-4):
Hazard Codes: HarmfulXn,IrritantXi
Risk Statements: 62-63-36/38-36/37/38 
R62:Risk of impaired fertility. 
R63:Possible risk of harm to the unborn child. 
R36/38:Irritating to eyes and skin. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements Sodium tetraborate (CAS No.1330-43-4): 36/37-24/25-26-36-23 
S36/37:Wear suitable protective clothing and gloves. 
S24/25:Avoid contact with skin and eyes. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S23:Do not breathe vapour.
RIDADR: UN 1760 8/PG 2
WGK Germany: 1
RTECS: ED4588000
F: 34
HS Code: 28401100
Hazardous Substances Data: 1330-43-4(Hazardous Substances Data)

Standards and Recommendations

OSHA PEL: TWA 10 mg/m3
ACGIH TLV: TWA 1 mg/m3

Specification

   Sodium tetraborate (CAS No.1330-43-4), it also can be called Anhydrous borax ; Borax glass ; Borax, anhydrous ; Borax, dehydrated ; Borax, fused ; Disodium tetraborate .It is pale yellow solid or thick liquid with a faint odor of detergent. If mixes with water, Soap bubbles may be produced.