CAS No.1330-43-4,Sodium tetraborate Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	1330-43-4
Name:	Sodium tetraborate
Article Data:	3

Formula:	Na₂B₄O₇
Molecular Weight:	201.219
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:	Xn,Xi
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

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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: Harmful Xn, Irritant Xi
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.