sodium tetraborate
2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane-3,7-diolate, sodium salt (1:2)
Listed in the EAFUS Food Additive Database (Jan. 2001) but with no reported use
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disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane (Click)
CAS Number: 1330-43-4Picture of molecule
Other: 1039387-27-3
ECHA EINECS - REACH Pre-Reg: 215-540-4
MDL: MFCD00081185
Molecular Weight: 201.21793856
Formula: B4 Na2 O7
NMR Predictor: Predict (works with chrome or firefox)
Category: buffering agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Google Patents: Search
US Patents: Search
EU Patents: Search
Pubchem Patents: Search
PubMed: Search
NCBI: Search
 FDA/DG SANTE Petitions, Reviews, Notices:
EU SANCO Sodium tetraborate (borax) View-review
DG SANTE Food Additives: sodium tetraborate
DG SANTE Food Contact Materials: sodium tetraborate
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Physical Properties:
Appearance: white crystalline powder (est)
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Specific Gravity: 2.36700 @  25.00 °C.
Flash Point: 32.00 °F. TCC ( 0.00 °C. ) (est)
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Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
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Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: buffering agents
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American Elements
Sodium Tetraborate, Anhydrous 99%
Odor: characteristic
Use: Sodium Tetraborate, Anhydrous is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards.
BOC Sciences
For experimental / research use only.
Anhydrous Borax fused
EMD Millipore
For experimental / research use only.
di-Sodium tetraborate
Santa Cruz Biotechnology
For experimental / research use only.
Borax Anhydrous ≥99%
Sigma-Aldrich: Aldrich
For experimental / research use only.
Sodium Tetraborate 99%
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Safety Information:
Preferred SDS: View
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: buffering agents
Recommendation for sodium tetraborate usage levels up to:
 not for fragrance use.
Recommendation for sodium tetraborate flavor usage levels up to:
 not for flavor use.
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Safety References:
European Food Safety Authority (EFSA) reference(s):
Scientific Opinion on the re-evaluation of boric acid (E 284) and sodium tetraborate (borax) (E 285) as food additives
View page or View pdf
ECHA (ESR): View search
NIOSH International Chemical Safety Cards: search
NIOSH Pocket Guide: search
NLM Hazardous Substances Data Bank: Search
Cancer Citations: Search
Toxicology Citations: Search
EPA Substance Registry Services (TSCA): 1330-43-4
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 10219853
National Institute of Allergy and Infectious Diseases: Data
WGK Germany: 1
Chemidplus: 0001330434
EPA/NOAA CAMEO: hazardous materials
RTECS: 1330-43-4
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NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 1330-43-4
Pubchem (cid): 10219853
Pubchem (sid): 135263547
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Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
HMDB (The Human Metabolome Database): Search
FooDB: FDB015387
Export Tariff Code: 2840.11.0000
Haz-Map: View
Household Products: Search
ChemSpider: View
Wikipedia: View
RSC Learn Chemistry: View
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Potential Blenders and core components note
None Found
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Potential Uses:
 buffering agents 
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Occurrence (nature, food, other): note
 not found in nature
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 disodium bicyclo[3.3.1]tetraboroxane-3,7-diolate
 disodium tetraborate
 disodium tetraborate anhydrous
2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane-3,7-diolate, sodium salt (1:2)
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PubMed: Sodium tetraborate effects on mortality and reproduction of Anastrepha suspensa (Diptera: Tephritidae).
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