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Registry of Toxic Effects of Chemical Substances (RTECS)

Phosphoric acid, monopotassium salt

RTECS #

TC6615500

CAS #

7778-77-0

Updated

July 2011

Molecular Weight

136.09

Molecular Formula

H2O4P·K

Synonyms

Monopotassium phosphate

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
In Vitro/Human, liver tumor Inhibitor Concentration (50 percent kill): 40 mmol/L/24HIn Vitro Toxicity Studies: Cell protein synthesisTIVIEQ 3,189,1989
oral/rat lowest published lethal dose: 4640 mg/kgBehavioral: Somnolence (general depressed activity)

Gastrointestinal: Other changes
NTIS** OTS0571153
skin/rabbit lethal dose (50 percent kill): >4640 mg/kgNTIS** OTS0571153

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit-RUSSIAshort term exposure limit 10 mg/m3, JUN2003

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001
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