Material Compatibility

Acids Compatibility Chart

Q: What materials are compatible with acids?

It depends on the specific chemical, concentration, and temperature — this page carries 113 real rated rows across 39 distinct media in this family, rating PVC, PP, PVDF, PFA, PTFE, and 316 stainless steel individually. There is no single answer for the whole family.

Q: How current is this data?

Sourced from Flowline chemical compatibility chart, 551 real media rows. Confirm current specifications with the manufacturer before final specification — chemical formulations and vendor ratings can change.

Q: What if my exact chemical or concentration isn't listed?

Send LibertyCES the exact chemical, concentration, and operating temperature — James can confirm material compatibility even where this reference table doesn't have an exact matching row.

113 real rated rows across 39 media, comparing PVC, PP, PVDF, PFA, PTFE, and 316 stainless steel by concentration and temperature.

30+ years spec experience. Send James the process data and get a real answer — not a catalog page.

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Notable Finding

PVDF and PTFE rate Excellent or Good far more consistently than PVC, PP, or 316 stainless steel across this family. Concentration and temperature both matter within the same acid — the same chemical can rate Good at a lower concentration/temperature and Fair at a higher one.

Rating Legend

E = ExcellentG = GoodF = FairC = Corrodedblank = unrated

Full Compatibility Data

Acids — 113 Real Rated Rows

Media	Conc.	Temp	PVC	PP	PVDF	PFA	PTFE	316SS
Acetic Acid	80%	104°F	G	F	G	E	E	E
Acetic Acid	50%	104°F	G	F	E	E	E	E
Acetic Acid	20%	104°F	G	G	E	E	E	E
Acetic Acid	10%	104°F	E	E	E	E	E	E
Acetic Acid	80%	176°F	—	F	C	E	E	G
Acetic Acid	50%	176°F	—	F	G	E	E	E
Acetic Acid	20%	176°F	—	—	G	E	E	E
Acetic Acid	10%	176°F	—	—	G	E	E	E
Acetic Anhydride	Pure	104°F	—	F	F	E	E	G
Acetic Anhydride	Pure	176°F	—	F	F	E	E	G
Adipic Acid (Aqueous)	Saturated	104°F	E	E	E	E	E	E
Adipic Acid (Aqueous)	Saturated	176°F	—	G	E	E	E	E
Arsenic Acid	—	104°F	G	G	E	E	E	E
Arsenic Acid	—	176°F	—	—	E	—	E	G
Benzene Sulfonic Acid	—	104°F	—	—	G	E	E	G
Benzene Sulfonic Acid	—	176°F	—	—	C	—	E	G
Benzoic Acid	Pure	104°F	E	G	E	E	E	G
Benzoic Acid	Pure	176°F	—	C	E	—	E	G
Boric Acid	Saturated	104°F	E	E	E	E	E	E
Boric Acid	Saturated	176°F	—	E	E	—	E	E
Carbonic Acid	—	104°F	E	E	E	E	E	E
Carbonic Acid	—	176°F	—	G	E	—	E	E
Chloric Acid	20%	104°F	E	E	E	—	E	C
Chloric Acid	20%	176°F	—	—	E	—	E	C
Chloro Sulfonic Acid	Pure	104°F	—	—	C	E	E	F
Chloro Sulfonic Acid	Pure	176°F	—	—	—	—	E	C
Chromic Acid	50%	104°F	C	—	E	—	E	C
Chromic Acid	40%	104°F	F	—	E	—	E	C
Chromic Acid	20%	104°F	F	—	E	—	E	C
Chromic Acid	10%	104°F	E	—	E	E	E	C
Chromic Acid	50%	176°F	—	—	F	—	E	C
Chromic Acid	40%	176°F	—	—	E	—	E	C
Chromic Acid	20%	176°F	—	—	E	—	E	C
Chromic Acid	10%	176°F	—	—	E	—	E	C
Citric Acid	10%	104°F	E	E	E	E	E	E
Fatty Acids	—	104°F	E	G	E	E	E	E
Fatty Acids	—	176°F	—	F	E	—	E	E
Fluosilic Acid	50%	104°F	G	E	E	—	—	G
Fluosilic Acid	50%	176°F	—	G	E	—	—	G
Formic Acid	90%	104°F	G	G	E	E	—	F
Formic Acid	—	176°F	—	—	E	—	—	F
Gallic Acid	—	104°F	—	—	G	E	E	G
Gallic Acid	—	176°F	—	—	C	—	E	G
Glycolic Acid	Saturated	104°F	—	E	G	E	E	E
Glycolic Acid	Saturated	176°F	—	—	C	—	E	E
Hydrobromic Acid	—	104°F	E	E	E	E	E	C
Hydrobromic Acid	—	176°F	—	E	E	—	E	C
Hydrochloric Acid	15%	104°F	E	E	E	E	E	C
Hydrochloric Acid	38%	104°F	E	E	E	—	E	C
Hydrochloric Acid	35%	104°F	E	E	E	—	E	C
Hydrochloric Acid	25%	104°F	E	E	E	—	E	C
Hydrochloric Acid	38%	176°F	—	G	E	—	E	C
Hydrochloric Acid	35%	176°F	—	G	E	—	E	C
Hydrochloric Acid	25%	176°F	—	E	E	—	E	C
Hydrochloric Acid	15%	176°F	—	E	E	—	E	C
Hydrocyanic Acid	10%	104°F	E	E	E	E	E	F
Hydrocyanic Acid	—	176°F	—	—	E	—	E	F
Hydrofluoric Acid	50%	104°F	F	G	E	C	E	C
Hydrofluoric Acid	40%	104°F	F	G	E	C	E	C
Hydrofluoric Acid	30%	104°F	G	G	E	—	E	C
Hydrofluoric Acid	Dilute	104°F	E	G	E	E	E	C
Hydrofluoric Acid	50%	176°F	—	G	E	C	E	C
Hydrofluoric Acid	40%	176°F	—	G	E	C	E	C
Hydrofluoric Acid	30%	176°F	C	G	E	—	E	C
Hydrofluoric Acid	Dilute	176°F	—	G	E	—	E	C
Hydroflusilic Acid	50%	104°F	G	E	E	—	—	E
Hypochlorous Acid	10%	104°F	E	G	E	—	E	C
Hypochlorous Acid	10%	176°F	—	—	E	—	E	C
Lactic Acid	25%	104°F	E	E	E	E	E	G
Lactic Acid	80%	104°F	G	G	E	—	E	G
Lactic Acid	25%	176°F	—	—	E	—	E	G
Lactic Acid	80%	176°F	—	—	E	—	E	G
Maleic Acid	—	104°F	E	E	E	E	E	G
Maleic Acid	—	104°F	E	E	E	E	E	G
Malic Acid	10%	104°F	E	E	E	E	E	E
Malic Acid	10%	176°F	—	E	E	—	E	E
Nitric Acid	98%	104°F	—	—	G	—	E	E
Nitric Acid	70%	104°F	G	C	E	—	E	F
Nitric Acid	50%	104°F	G	G	E	—	E	G
Nitric Acid	30%	104°F	E	E	E	—	E	E
Nitric Acid	10%	104°F	E	E	E	E	E	E
Nitric Acid	70%	176°F	C	—	G	—	E	F
Nitric Acid	50%	176°F	C	C	G	—	E	G
Nitric Acid	30%	176°F	C	G	E	—	E	E
Nitric Acid	10%	176°F	C	G	E	—	E	E
Nitrous Acid	10%	104°F	—	—	—	E	E	G
Oleic Acid	—	104°F	E	E	E	E	E	G
Oleic Acid	—	176°F	—	E	E	—	E	G
Palmitic Acid	70%	104°F	—	E	E	—	E	F
Palmitic Acid	10%	104°F	—	E	E	—	E	G
Palmitic Acid	5%	104°F	—	E	E	E	E	G
Palmitic Acid	70%	176°F	—	G	E	—	E	F
Palmitic Acid	10%	176°F	—	E	E	—	E	G
Palmitic Acid	5%	176°F	—	E	E	—	E	G
Phosphoric Acid	50%	104°F	E	E	E	—	E	G
Phosphoric Acid	50%	176°F	—	F	E	—	E	G
Phosphoric Acid	10%	176°F	—	E	E	—	E	G
Phthalic Acid	—	104°F	—	—	E	E	E	G
Phthalic Acid	—	176°F	—	—	E	—	E	G
Picric Acid	10%	104°F	E	E	—	E	E	G
Picric Acid	—	176°F	—	E	—	—	E	G
Salicylic Acid	—	104°F	—	—	E	E	E	G
Salicylic Acid	—	176°F	—	—	E	—	E	F
Stearic Acid	—	104°F	E	G	E	E	E	E
Stearic Acid	—	176°F	—	G	E	—	E	E
Sulfuric Acid	<10%	104°F	G	E	E	E	E	G
Sulfuric Acid	<70%	104°F	G	G	E	E	E	C
Sulfuric Acid	<96%	104°F	—	F	E	E	E	C
Sulfurous Acid	—	104°F	E	E	E	E	E	F
Tannic Acid	—	104°F	—	E	E	E	E	E
Tannic Acid	—	176°F	—	E	E	—	E	E
Trichloroacetic Acid	—	104°F	—	E	G	E	E	C
Trichloroacetic Acid	—	176°F	—	—	C	—	E	C

Source: Flowline chemical compatibility chart, 551 real media rows. Blank cells mean no rating was published for that combination — treat as unknown, not safe. Reference only; confirm current specifications with the manufacturer before final specification.

FAQ

Frequently Asked Questions

What materials are compatible with acids?

It depends on the specific chemical, concentration, and temperature — this page carries 113 real rated rows across 39 distinct media in this family, rating PVC, PP, PVDF, PFA, PTFE, and 316 stainless steel individually. There is no single answer for the whole family.

How current is this data?

Sourced from Flowline chemical compatibility chart, 551 real media rows. Confirm current specifications with the manufacturer before final specification — chemical formulations and vendor ratings can change.

What if my exact chemical or concentration isn't listed?

Send LibertyCES the exact chemical, concentration, and operating temperature — James can confirm material compatibility even where this reference table doesn't have an exact matching row.

Spec Review

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