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Boron phosphate (B(PO4))

HCID 83329
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Basic information

CAS
13308-51-5
Standard SMILES
O=P12OB(O1)O2
InChIKey
RKVCQBPDVHFKCU-UHFFFAOYSA-N
Molecular formula
BO4P
Average molar mass
105.78 g/mol
Monoisotopic mass
105.9627256

Names & identifiers

Preferred name
Boron phosphate (B(PO4))
IUPAC
2,4,5-trioxa-1λ5-phospha-3-borabicyclo[1.1.1]pentane 1-oxide
English name
BORON PHOSPHATE
Molecular formula
BO4P
Molecular weight
105.78

Names & synonyms

BORON PHOSPHATEBoron orthophosphateBoron phosphate (B(PO4))EINECS 236-337-7DTXSID10872553EC 236-337-7236-337-7RefChem:570043Boron(+3) cation phosphateDTXCID5082019913308-51-52,4,5-trioxa-1lambda5-phospha-3-borabicyclo[1.1.1]pentane 1-oxide
Show more names
BH3O4PBudit326Budit 321Fosfato de boroBoron phosphate (1:1)BORON (III) PHOSPHATEboronphosphate(b(po4))
borophosphoric acidBO4PBoron phosphate anhydrouBPO4SCHEMBL16291246RKVCQBPDVHFKCU-UHFFFAOYSA-NMFCD00011318DB-230037

Database identifiers

CAS
13308-51-5
PubChem CID
83329
DTXSID
DTXSID10872553
EC Number
236-337-7

Properties

Computed structural properties

Topological polar surface area
44.8 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
4
Rotatable bonds
0
Heavy atoms
6
Formal charge
0
Complexity
106

Experimental & physicochemical properties

Chemical ClassesMetals -> Metalloid Compounds (Boron)
Polymers · 2 items

Plastics -> N.a.

Plastics -> Flame retardants

Flame RetardantsFlame retardants
Physical Description · 2 items

Dry Powder

White odorless powder; [Alfa Aesar MSDS]

Physicochemical properties

Melting point
1400 °C · 1400°C
Density
2.52 g/mL · 2.52 g/mL at 25 °C(lit.)
form
Powder
Specific Gravity
2.81 · 2.81
color
White
Water Solubility
Insoluble in water.
InChI
InChI=1S/B.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+3;/p-3
InChIKey
YZYDPPZYDIRSJT-UHFFFAOYSA-K
SMILES
P([O-])([O-])([O-])=O.[B+3]

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 1.8% (1 of 57) of reports.

Danger

H302 (21.1%): Harmful if swallowed [Warning Acute toxicity, oral]

P203, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P318, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 57 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 2 items

Boron phosphate (B(PO4)) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Boron phosphate (B(PO4)) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

REACH registered substance: Boron orthophosphate (EC: 236-337-7)

Hazards SummaryMay cause serious eye injury; Harmful by ingestion; [ECHA REACH Registrations] A skin and strong eye irritant; [Alfa Aesar MSDS] See Boron.
Hazard Classes and CategoriesAcute Tox. 4 (21.1%)

Safety data

tsca
TSCA listed
hs_code
2835299000
risk_code
36/37/38
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi

Chemistry & industry

Uses & manufacturing

Uses · 2 items

Used to make pH regulators, flocculants, precipitants, food products, large scale and fine chemicals, adsorbents, polymers, paints, coatings, thinners, fillers, putties, plasters, ink and toners, metal working fluids, lubricants, greases, ink and toners, plastic products, pulp-paper-paper products, non-metallic mineral products (i.e. plasters and cement), computer-electronic-optical products, electrical batteries and accumulators, textiles, and rubber products, and in building and construction work and scientific research and development; [ECHA REACH Registrations]

Metal Machining [Category: Heat or Machine]

U.S. Production2023: 66,138 lb
Consumer UsesNot Known or Reasonably Ascertainable
Industry UsesNot Known or Reasonably Ascertainable
Use Classification · 2 items

Plastics -> Polymer Type -> N.a.

Plastics -> Flame retardants

General Manufacturing Information · 2 items

Not Known or Reasonably Ascertainable

Boron phosphate (B(PO4)): ACTIVE

Applications · 2 items

UsesBoron phosphate is used as an acid catalyst for dehydration of alcohols to olefins; isomemization of olefins; nitration of aromatic hydrocarbons; polymerization of aldehydes and other synthetic reactions. It also is used as a flux in silica-based porcelain and ceramics; special glasses; and acid cleaners.

UsesBoron phosphate is used as a catalyst for dehydration as well as in other organic reactions. It is employed as a source of phosphates involved in the exchange reaction to prepare metal phosphates. It finds application in refractories, ceramics and flame-retardants.

Preparation methods

Related reactions

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Compound notes

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CAS DataBase Reference
13308 · 13308-51-5(CAS DataBase Reference)
EPA Substance Registry System
Boron phosphate (B(PO4)) (13308-51-5)
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
302 · H302-H315-H319-H335
Precautionary statements
280 · P280-P301+P312-P261
Hazard Codes
Xi
Risk Statements
36 · 36/37/38
Safety Statements
22 · 22-24/25-26
TSCA
TSCA listed
HS Code
2835299000 · 2835299000
REACH Registrations
Active
safety_code
22-24/25-26
Hazard statements
H302-H315-H319-H335
REACH Registrations
Active
Precautionary statements
P280-P301+P312-P261
· 1 item

PreparationBoron phosphate is prepared by heating an equimolar mixture of boric acid and phosphoric acid at 1,000 to 1,200°C: H3BO3 + H3PO4 → BPO4 + 3H2O Various preparative methods are adopted at nonstoichiometric formulations, incomplete dehydration or using oxide additives to obtain boron phosphate of varying purity for its catalytic applications. The compound also forms hydrates (tri- tetra-, penta-, and hexahydrates) which readily decompose in water to phosphoric acid and boric acid.

Upstream & downstream products

Upstream raw materials

Poly(tetrafluoroethylene)Formaldehyde

Downstream products

solid phosphoric acid catalyst T-49