PHOSPHORIC ACID liquid

UN Number: 1805 - CAS Number: 7664-38-2

Also known as: ACIDE PHOSPHORIQUE liquide, Orthophosphoric Acid, O-Phosphoric Acid, White Phosphoric Acid, Phosphoric Acid, Hydrogen Phosphate, Acide Phosphorique

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number	1805
CAS number	7664-38-2
Formula	H₃PO₄

Physical chemical data

Physical State (20°C)

Liquid

Physical State (25°C)

Liquid

Density (kg/m3)

1892 [Kg/m³] at a temperature of 20°C

Kinematic viscosity (cSt)

140 [cSt] at a temperature of 20°C

100 [cSt] at a temperature of 25°C

Molar mass (g/mol)

Solubility (g/L)

1863000 [g/L] at a temperature of 20°C and salinity of 0‰

1863000 [g/L] at a temperature of 25°C and salinity of 0‰

Boiling Point (°C)

130

Melting Point (°C)

Specific heat capacity (J/(Kg·K))

1480

Henry's constant (mol/(m³·Pa))

Behaviour at sea

Log kow	0.21
Log koc	1.21
Aqueous photolysis (Half-life)	Not photolysable
Biodegradation in estuary environment (Half-life) (days)	1
Biodegradation in marine environment (Half-life) (days)	Not biodegradable

Additional data

Colour

colourless

Odour

odourless

MARPOL pollution category

Category	Description
Z	Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a minor hazard to either marine resources or human health and therefore justify less stringent restrictions on the quality and quantity of the discharge into the marine environment.

Transportation data

Transport mode	Bulk,Packaged
Package group	III
State	liquid
Temperature (°C)	ambient
Pressure (Pa)	ambient
Family name	non-oxid. min. acids

Reactivity data

Water	Yes
Abilities	Miscible in water.
Acid(s)	Yes
Base(s)	Yes
Metal(s) and alloys	Yes
Oxidizing agents	Yes
Reducing agents	No
Combustibles	No
Organic substance	Yes
Notable risks	Reacts to heat Reacts with other compouds.

GESAMP Hazard profile

Bioaccumulation in logPow (A1A)	0 - e <1, or > ca.7, or Mol. Wt. > 1000
Bioaccumulation (A1)	0 - No potential to bioaccumulate
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l))	1 - Practically non-toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg))	3 - Moderately high
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg))	3 - Moderately high
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l))	3 - Moderately high
Skin irritation/corrosivity (D1)	1 - Mildly irritating
Eye irritation/corrosivity (D2)	3 - Severely irritating, with irreversible corneal injury
Interference with coastal amenities (E2)	D - Dissolver
Effects on wildlife and bottom habitats (E3)	3 - Is highly acutely toxic; and/or is severely irritant or corrosive to skin or eyes; and/or is carcinogenic, mutagenic or reprotoxic; and/or is a floater or persistent floater with associated health effects

Human toxicity threshold

IDHL

2500

Hazard statements

Health

H314	Causes severe skin burns and eye damage.

Precautionary statements

Prevention

P280	Wear protective gloves/protective clothing/eye protection/face protection.

Response

P303 + P361 + P353	IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305 + P351 + P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

TLV-TWA

0.25

TEEL-2 (mg/m3)

500

TEEL-3 (mg/m3)

500

Ecotoxicity

Highest no observed effect concentration (NOEC) on algae (mg/l)	100
Highest no observed effect concentration (NOEC) on crustacean (mg/l)	56

Incident reports

No incident reports available

Emergency Response Guidebook

Guide number: 154

See the guide or download the emergency response guidebook

At sea emergency guide

No guides available

Decision trees

Corrosive

graph TB;5a225335574f4bb484e98878cf167847("Corrosive substances");click 5a225335574f4bb484e98878cf167847 window.callbackNodeClikFunction "Corrosive substances";

No decision trees available

No additional data