Excess water or use on unsealed, unfinished, or damaged wood finishes may cause damage.
Why
Murphy Oil Soap Original Formula is specifically designed for finished wood and is supported for intact/sealed wood finishes. Its diluted surfactant cleaner formulation and specified floor-use method are reasonably compatible with hardwood.
What to do
Dilute as directed, use a well-wrung mop, promptly remove excess water, and use only on intact/sealed hardwood finishes.
pH
No official pH value found.
Relevant chemistry
Concentrated cleaner with water, coconut- and plant-derived cleaning ingredients, fragrance, sodium tallate, trisodium MGDA, and lauramidopropyldimethylamine. No ammonia or bleach; phosphate-free and biodegradable.
Source: official product page ↗