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DL-LACTONE CAS N°:79-50-5 - page 23 / 113

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OECD SIDS 1. GENERAL INFORMATION

DL-LACTONE

ID: 79-50-5 DATE: 18.01.2006

Crude DL-lactone is purified by distillation, with the resulting residue being sent off site for disposal. The purified DL-lactone is either transferred to [the next production step] for the production of R-pantolactone or

transferred to [the next production step]

for

the

production

of RS-pantothenyl ether or RS-panthenol.

Reliability: 13-JUN-2005

(2)

valid

with

restrictions

(45)

1.8 Regulatory Measures

1.8.1 Occupational Exposure Limit Values

Type of limit: Limit value:

other: Internal Occupational Exposure Limit 10 mg/m3

Result:

No IOEL established based on toxicological data, the limit

value for inert dust was adopted.

17-AUG-2004

(41)

      • 1.8.2

        Acceptable Residues Levels

      • 1.8.3

        Water Pollution

Classified by:

other: own 17.05.1999

classification according

to

German

VwVwS

dated

Class of dange

r:

1

(weakly

water polluting)

16-AUG-2004

      • 1.8.4

        Major Accident Hazards

      • 1.8.5

        Air Pollution

1.8.6 Listings e.g. Chemical Inventories

Type: Additional Info:

NDSL Canada Gazette, Part I, January 31, 1998

Reliability:

(1)

valid

without

restriction

16-AUG-2004

(44)

Type:

TSCA

Additional Info:

May 2004 Inventory tape

Reliability: 16-AUG-2004

(1)

valid

without

restriction

(44)

Type:

Additional Info:

other: SPIN database (substances used in preparations in Nordic countries: N, S, DK, SF) Not listed, no use identified.

UNEP PUBLICATIONS

23

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