1-Hydroxyethane-1,1-Diphosphonic Acid

Product details

Trade name: Hydroxyethylidene-1,1-di-phosphonic acid (HEDP)
Application of the substance / the preparation Cleaning material/ Detergent

CAS-No: 2809-21-4
Synonym: HEDPA, 1-Hydroxyethylidene-bisphonic acid, Oxyethlidenediphosphonic

Uses/Applications:
A scale and synergistic corrosion inhibitor for iron rust and mineral scale from pipes of cooling circulation water units and boilers; Metal chelate agent for color fixing and bleaching in textile; Complexing agent for electron plate and scale cleaning agent for metals.

Specifications

Specifications GENERAL

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

SDB DE MSDS EN

Product inquiry / Your message

more information

possible hazards

Hazard description:
Information pertaining to particular dangers for man and environment:
R 41 Risk of serious damage to eyes.

Classification system:
The classification was made according to the latest editions of the EU-lists, and expanded using company data and specialized literature.

Composition / information on ingredients

Chemical characterization
Description:	Mixture of the substances listed below with nonhazardous additions.
Dangerous components:
CAS:	2809-21-4 Etidronic acid 58-62%
EINECS:	220-552-8 Xi; R 41

CAS:	13598-36-2 phosphorous acid < 2.5%
EINECS:	237-066-7 C, Xn; R 22-35
Index number:	015-157-00-0

Physical and Chemical Properties

General Information
Form:	Fluid
Colour:	Colourless, Yellowish
Odour:	Characteristic
Change in condition
Melting point/Melting range:	not determined
Boiling point/Boiling range:	100°C
Flash point:	not applicable
Self ingnition temperature:	Product is not self-igniting.
Danger of explosion:	Product does not present an explosion hazard.
Density at 20°C:	1.39-1.49 g/cm³
Solubility in / Miscibility with
Water:	Fully miscible
pH-value (10 g/l) at 20°C:	max. 2
Segregation coefficient (n-octanol/water):	-3.49 log POW for the active agent

Transport information

Land transport ADR/RID (cross-border)
ADR/RID class:	8 (C3) Corrosive substances.
Danger code (Kemler):	80
UN-Number:	3265
Packaging group:	III
Label:	8
Description of goods:	3265 CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Etidronic acid, PHOSPHOROUS ACID)
Limited quantities (LQ)	LQ7
Transport category	3
Tunnel restriction code	E
Remarks:	Limited quantity: 5l per inner packaging, 30 kg gross per packaging unit


Maritime transport IMDG:
IMDG Class:	8
UN Number:	3265
Label:	8
Packaging group::	III
EMS-Number:	F-A,S-B
Marine pollutant:	No
Proper shipping name:	CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Etidronisäure, PHOSPHOROUS ACID)




Lufttransport ICAO-TI und IATA-DGR:
ICAO/IATA Class:	8
UN Number:	3265
Label:	8
Packaging group::	III
Proper shipping name:	CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Etidronisäure, PHOSPHOROUS ACID)
Remarks:	Packing Instructions:
	For Limited Quantities: Y818 (Max Net Qty/Pkg: 1,0 l)
	Passenger and Cargo Aircraft: 818 (Max Net Qty/Pkg: 5 l)
	Cargo Aircraft only: 820(Max Net Qty/Pkg: 60 l)

Regulatory information

Markings according to EC guidelines:
The product has been classified and marked in accordance with EU Directives / Ordinance on Hazardous Materials

Hazard-determining components of labelling:
Etidronic acid
phosphorous acid

Risk phrases:
41 Risk of serious damage to eyes.

Safety phrases:
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
36/37/39 Wear suitable protective clothing, gloves and eye/face protection.
45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
60 This material and its container must be disposed of as hazardous waste.

National regulations:

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

Water hazard class: Water hazard class 2 (Self-assessment): hazardous for water.

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Mrs. Kerstin Schlegel
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specialities@penpet.de

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