Shanghai Luer Chemical Trading Co., Ltd.

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DA 2000

General Information

DA 2000 is a Polyoxypropylenediamine with a average molecular weight about 2000.The carbon-oxygene backbone is terminated on both ends by primary amine groups which are attached to secondary carbon atoms .Hence the nucleophilic reaction of the amine groups is sterically hindered by the vicinal methyl groups. This leads to a moderate reactivity of DA2000 which is desired for many epoxy applications. The reactivity decreases also with the chain length. In this series,DA250 shows the highest reactivity and DA2000 the lowest.

Chemical and Physical Date

Properties	DA2000	Unit
Appearance	Colorless toyellowish liquid
Density at 25°C	1.0	g/cm³
Melting point	<-29	°C
Boiling point	> 250	°C
Water	<0.2	% m/m
Primary amine content	>96.5	% m/m

Application

DA2000 is a reactive chain extender to reduce the hardness of polyurethane products due to the long aliphatic chain. In the epoxy industry DA2000 is used as hardener.

Safety and Handling

Harmful in contact with skin and causes burns. Avoid inhalation and contact with eyes and skin. Wear goggles and gloves.

Classification:

Labeling	corrosive (C)
R-Phrases	R 22,34
S-Phrases	S 26,36/37/39,45

Transport and Packaging

Truck	GGVS+ADR: 8,53 b)
Train	GGVE+RID: 8,53 b)
Ship	IMDG-Code: 8, UN2735

Packaging type:

PE containers, capacity 25 kg
Drums (internally. coated) capacity 200kg
IBC containers, capacity 1000kg
Truck, capacity 20,000 kg

Storage

Keep away from heat and humidity, storage under dry nitrogen is recommended. Shelf life 12 months.

This information is based on our present knowledge and experience. However, it implies no liability or other legal responsability on our part, including with regard to
existing third party patent rights. In particular, no guarantee of properties in the legal sense is implied. We reserve the right to make any changes according to
technological progress or further developments. The customer is not released from the obligation to conduct careful inspection and testing of incoming goods. Reference to trade names used by other companies is neither a recommendation, nor is it intended to suggest that similar products could not be used. All our business transactions shall exclusively be governed by our General Sales Conditions.