Phosphates

Phosphoric Acid 75%

Molecular formula: H3PO4
Concentration: 75%
Appearance: Colourless transparent syrupy liquid
Production route: Wet-process or thermal-process

Phosphoric Acid 75% is a colourless, transparent, syrupy liquid produced by wet-process or thermal-process technology and supplied in both food and industrial grades. At 75% it carries less acid per drum than the 85% grade but tolerates much colder storage, which is why sites without heated acid storage and winter shipments to northern markets specify it. It gives moderate acidity and good solubility for acidification, metal treatment and phosphate production.

Why buyers specify this grade

Precise concentration control, so batch-to-batch acidity does not drift
Moderate acidity that is easier to handle and mix than higher concentrations
Food grade and industrial grade available from the same supply line
Tolerates cold storage where an 85% solution would crystallise

Get a price for Phosphoric Acid 75% Email enquiry

Send the quantity and destination port and you get the grade recommendation, the analytical specification, the packing format and the container loading in one reply.

Specification

Assay as H3PO4	75%
Appearance	Colourless transparent syrupy liquid
Grade	Food grade or industrial grade
Solubility	Excellent, fully miscible with water

Technical data

Molecular formula: H3PO4
Concentration: 75%
Appearance: Colourless transparent syrupy liquid
Production route: Wet-process or thermal-process
Grades: Food grade and industrial grade

Quality control

Concentration held to a controlled target rather than a wide commercial band
TDS and MSDS issued with the order and a sample COA on request

Where it is used

pH regulator and acidulant in beverages and processed foods
Metal surface treatment, rust removal and detergent formulation
Raw material for phosphate and compound fertiliser synthesis
Water treatment pH control

Who buys it

Beverage and food processors needing a food-grade acidulant
Metal finishing and detergent formulators
Phosphate and compound fertiliser producers
Buyers in cold climates storing acid outdoors

Problems it solves

Acid crystallising in unheated winter storage, which a 75% solution tolerates down to minus 20 deg C
Over-strong acid that is hard to meter accurately on a small dosing line
Qualifying two separate suppliers for food and industrial grades

Packing and options

Food grade or industrial grade specified at order
Drum and IBC packing, format confirmed at quotation

How it compares

The 85% grade is the one to buy when freight per unit of acid decides the cost and the store is indoors above 21 deg C. The 75% grade is the one to buy when the acid sits in an unheated yard, when a gentler acidity is easier on dosing hardware, or when an industrial-grade price point is wanted.

Handling and storage

Store in a cool, ventilated, corrosion-proof area with containers closed
Confirm food grade in writing when the end use is a beverage or food
Keep away from alkalis and metal powders

FAQ

Phosphoric Acid 75% questions buyers ask

What is the difference between your 75% and 85% phosphoric acid

Concentration and cold tolerance. The 85% solution must be kept above 21 deg C to avoid crystallisation while 75% tolerates storage down to minus 20 deg C. Both are available food grade.

Is a food grade available

Yes, both food grade and industrial grade are supplied.

What is it used for

pH regulation and acidification in beverages and processed foods, metal surface treatment and rust removal, detergents, and phosphate or compound fertiliser synthesis.

How is it produced

By wet-process or thermal-process technology.

Can you send documentation before ordering

Yes, TDS and MSDS by email with a sample COA on request.

Do you supply drums or IBC

Both. Confirm the format at quotation and it is priced accordingly.

Download TDS, MSDS and sample COA