Phosphoric Acid

Product details

Phosphoric acid  is a mineral inorganic acid. The most part of Phosphoric acid becomes appropriates to the preservatives and as acidity regulator.

CAS-No. 7664-38-2
EINECS-No. 231-633-2
Chemical formula: H3PO4

Synonyms: trihydroxidooxidophosphorus | Orthophosphoric acid | Trihydroxylphosphine oxide
Applications: Basic raw material for the chemical industry


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MSDS according 91/155 EEC (2001/58 EC)


More information

Information pertaining to particular dangers for man and environment:
Acid burns have to be treated immediately, as otherwise badly curing wounds are caused.
R 34 Causes burns.

Classification system for Phosphoric Acid:
The classification was made according to the latest editions of the EU-lists, and expanded using company data and specialized literature.
Chemical characterization for Phosphoric Acid, orthophosphoric acid or phosphoric(V) acid:
CAS No. Description: 7664-38-2 phosphoric acid

Identification number(s):
EINECS Number: 231-633-2
EU Number:
General Information
for Phosphoric Acid orthophosphoric acid or phosphoric(V) acid
Form: Fluid
Colour: Colourless
Odour: Odourless

Change in condition
Melting point/Melting range: -75-21°C
Boiling point/Boiling range:
Flash point:
not applicable
Danger of explosion: Product does not present an explosion hazard.
Vapour pressure at 159°C: (70 % w/w)
Density at 20°C:
1.41-1.69 g/cm3

Solubility in / Miscibility with


pH-value at 20°C: 0
Viscosity: dynamic at 20°C: 7- >32 mPas
Land transport ADR/RID (cross-border) for Phosphoric Acid:
ADR/RID class: 8 (C1) Corrosive substances.
Danger code (Kemler): 80
UN-Number: 1805
Packaging group: III
Label: 8
Description of goods: 1805 PHOSPHORIC ACID, LIQUID
Limited quantities (LQ) LQ7
Transport category 3
Tunnel restriction code E
Remarks: Limited quantitiy: 3 l inner packaging, 30 kg gross packaging unit
Maritime transport IMDG:
IMDG Class: 8
UN Number: 1805
Label: 8
Packaging group:: III
EMS-Number: F-A,S-B
Marine pollutant: No
Proper shipping name: PHOSPHORIC ACID, LIQUID
Lufttransport ICAO-TI und IATA-DGR:
ICAO/IATA Class: 8
UN Number: 1805
Label: 8
Packaging group:: III
Proper shipping name: PHOSPHORIC ACID, LIQUID
Remarks: Packing Instructions:
For Limited Quantities: Y819 (Max Net Qty/Pkg: 1,0 l)
Passenger and Cargo Aircraft: 819 (Max Net Qty/Pkg: 5 l)
Cargo Aircraft only: 821(Max Net Qty/Pkg: 60 l)
Markings according to EC guidelines for Phosphoric Acid:
The product has been classified and marked in accordance with EU Directives / Ordinance on Hazardous Materials

Risk phrases:
34 Causes burns.

Safety phrases:
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

National regulations:

Information about limitation of use:
Restrictions on juvenile employment must be observed.

Water hazard class: Water hazard class 1 (Assessment by list): slightly hazardous for water.

Hazard description

GHS-hazard labels

Hazadous material sign