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Merck
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Key Documents

1.01160

Supelco

Ammonium hydrogen difluoride

pure

Synonym(s):

Ammonium bifluoride, Etching powder

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About This Item

Linear Formula:
NH4HF2
CAS Number:
Molecular Weight:
57.04
MDL number:
UNSPSC Code:
12352302
NACRES:
NA.21

Pricing and availability is not currently available.

vapor pressure

1 hPa ( 20 °C)

Quality Level

pH

2 (20 °C, 5.7 g/L in H2O)

bp

>238 °C/1013 hPa (decomposition)

mp

125 °C (lit.)

SMILES string

N.F.F

InChI

1S/2FH.H3N/h2*1H;1H3

InChI key

KVBCYCWRDBDGBG-UHFFFAOYSA-N

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This Item
KWL3A05FF1KWL3A02FF3KWL3A04FF3
technique(s)

prefiltration: suitable

technique(s)

prefiltration: suitable

technique(s)

prefiltration: suitable

technique(s)

prefiltration: suitable

product line

Opticap® XL 10

product line

Opticap® XL 5

product line

Opticap® XL 2

product line

Opticap® XL 4

manufacturer/tradename

Opticap®

manufacturer/tradename

Opticap®

manufacturer/tradename

Opticap®

manufacturer/tradename

Opticap®

matrix

Milligard® LPB

matrix

Milligard® LPB

matrix

Milligard® LPB

matrix

Milligard® LPB

material

mixed cellulose esters (MCE) membrane, polypropylene filter, silicone seal, polyester support, polypropylene housing

material

mixed cellulose esters (MCE) membrane, polyester support, polypropylene filter, polypropylene housing, silicone seal

material

mixed cellulose esters (MCE) membrane, polyester support, polypropylene filter, polypropylene housing, silicone seal

material

mixed cellulose esters (MCE) membrane, polyester support, polypropylene filter, polypropylene housing, silicone seal

Pictograms

CorrosionSkull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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