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204005

Sigma-Aldrich

Ammonium dihydrogenphosphate

99.999% trace metals basis

Synonym(s):

Ammonium phosphate monobasic, mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate

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About This Item

Linear Formula:
NH4H2PO4
CAS Number:
7722-76-1
Molecular Weight:
115.03
EC Number:
231-764-5
MDL number:
MFCD00003396
UNSPSC Code:
12352302
PubChem Substance ID:
24852085
NACRES:
NA.23

Quality Level

100

Assay

99.999% trace metals basis

form

crystalline

impurities

≤15.0 ppm Trace Metal Analysis

mp

190 °C (dec.) (lit.)

application(s)

battery manufacturing

SMILES string

N.OP(O)(O)=O

InChI

1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)

InChI key

LFVGISIMTYGQHF-UHFFFAOYSA-N

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General description

Ammonium dihydrogenphosphate is a white crystalline solid widely applied in rechargeable batteries, non-linear optics, and fire-retardant coatings. It is insoluble in ethanol and acetone.

Application

Ammonium dihydrogenphosphate can be used:
  • As a precursor to fabricate cathode materials for Li-ion batteries to enhance cyclic performance.
  • As an electrolyte additive in rechargeable batteries to enhance the ionic conductivity or to reduce the risk of side reactions within the electrolyte.
  • To fabricate flame-retardant polymer composites.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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