877-24-7

Name Potassium hydrogen phthalate
CAS 877-24-7
EINECS(EC#) 212-889-4
Molecular Formula C8H5KO4
MDL Number MFCD00146206
Molecular Weight 204.22
MOL File 877-24-7.mol
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Chemical Properties

Appearance white crystalline powder
Melting point  295-300 °C (dec.) (lit.)
Boiling point  98.5-99.5 ;°C/740 ;mmHg(lit .)
bulk density 900kg/m3
density  1.006 g/mL at 20 °C
storage temp.  Store at RT.
solubility  H2O: 100 mg/mL, clear, colorless
form  Solid
color  White
Odor Odorless
PH 4.00-4.02 (25.0℃±0.2℃, 0.05M)
PH Range 3.8 - 4.0 (5% aq. sol.)
Stability: Stable. Incompatible with strong oxidizing agents.
Water Solubility  80 G/L (20 ºC)
Merck  14,7612
BRN  3637128
Cosmetics Ingredients Functions BUFFERING
InChI 1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
InChIKey IWZKICVEHNUQTL-UHFFFAOYSA-M
SMILES [K+].OC(=O)c1ccccc1C([O-])=O
LogP -2.73
CAS DataBase Reference 877-24-7(CAS DataBase Reference)
EPA Substance Registry System 877-24-7(EPA Substance)
Absorption cut-off at 309nm in H2O at 0.1M
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Hazard Codes  Xi,C
Risk Statements 
R36/38:Irritating to eyes and skin .
R36/37/38:Irritating to eyes, respiratory system and skin .
R34:Causes burns.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S24/25:Avoid contact with skin and eyes .
S22:Do not breathe dust .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
RIDADR  UN 1789 8/PG 3
WGK Germany  1
RTECS  CZ4326000
F  34
TSCA  Yes
REACH Registrations Active
HS Code  29173990
Storage Class 13 - Non Combustible Solids
Toxicity
LD50 orally in Rabbit: > 3200 mg/kg

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