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MSDS Material Safety Data Sheet
CAS

123-42-2

File Name: 123-42-2.asp

                              SIGMA-ALDRICH

Material Safety Data Sheet

Date Printed: 19/OCT/2004
Date Updated: 14/MAR/2004
Version 1.2
According to 91/155/EEC

Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.

1 - Product and Company Information

Product Name 4-HYDROXY-4-METHYL-2-PENTANONE, 99%
Product Number H41544

Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566

2 - Composition/Information on Ingredients

Product Name CAS # EC no Annex I
Index Number
4-HYDROXY-4-METHYL-2-PENTANONE 123-42-2 204-626-7 603-017-00-7

Formula C6H12O2
Molecular Weight 116.16 AMU
Synonyms Diacetonalcohol (Dutch) * Diacetonalcool
(Italian) * Diacetonalkohol (German) * Diacetone
* Diacetone alcohol (ACGIH:OSHA) *
Diacetone-alcool (French) * Diketone alcohol *
4-Hydroxy-2-keto-4-methylpentane *
4-Hydroxy-4-methyl-pentan-2-on (German, Dutch) *
4-Hydroxy-4-methylpentanone-2 *
4-Hydroxy-4-methyl-2-pentanone *
4-Hydroxy-4-methyl pentan-2-one *
4-Hydroxy-4-methyl-2-pentanone (OSHA) *
4-Idrossi-4-metil-pentan-2-one (Italian) *
2-Methyl-2-pentanol-4-one * Pyranton * Tyranton

3 - Hazards Identification

SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Highly flammable. Irritating to eyes.


4 - First Aid Measures

AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.

AFTER SKIN CONTACT
In case of contact, immediately wash skin with soap and copious
amounts of water.
AFTER EYE CONTACT
In case of contact, immediately flush eyes with copious amounts
of water for at least 15 minutes.

AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.

5 - Fire Fighting Measures

EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
Unsuitable: Water may be effective for cooling, but may not
effect extinguishment.

SPECIAL RISKS
Specific Hazard(s): Flammable liquid. Emits toxic fumes under
fire conditions.
Explosion Hazards: Vapor may travel considerable distance to
source of ignition and flash back. Container explosion may occur
under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.

6 - Accidental Release Measures

PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area. Shut off all sources of ignition.

PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear respirator, chemical safety goggles, rubber boots, and
heavy rubber gloves.

METHODS FOR CLEANING UP
Cover with dry-lime, sand, or soda ash. Place in covered
containers using non-sparking tools and transport outdoors.
Ventilate area and wash spill site after material pickup is
complete.

7 - Handling and Storage

HANDLING
Directions for Safe Handling: Avoid breathing vapor. Avoid
contact with eyes, skin, and clothing. Avoid prolonged or
repeated exposure.

STORAGE
Conditions of Storage: Keep container closed. Keep away from
heat, sparks, and open flame.

8 - Exposure Controls / Personal Protection

ENGINEERING CONTROLS
Safety shower and eye bath. Use nonsparking tools. Mechanical
exhaust required.

GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse.


ALDRICH - H41544 www.sigma-aldrich.com Page 2
EXPOSURE LIMITS
Country Source Type Value
Poland NDS 240 mg/m3
Poland NDSCh -
Poland NDSP

EXPOSURE LIMITS - DENMARK
Source Type Value
OEL TWA 240 mg/m3
50 ppm

EXPOSURE LIMITS - GERMANY
Source Type Value
TRGS 900 OEL 96 mg/m3
20 ppm
Remarks: H

EXPOSURE LIMITS - NORWAY
Source Type Value
OEL 120 mg/m3
25 ppm

EXPOSURE LIMITS - SWEDEN
Source Type Value
LLV (Level120 mg/m3
25 ppm

EXPOSURE LIMITS - SWITZERLAND
Source Type Value
OEL OEL 240 mg/m3
50 ppm

EXPOSURE LIMITS - UNITED KINGDOM
Source Type Value
OEL OEL 241 mg/m3
50 ppm
OEL STEL 362 mg/m3
75 ppm

PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.

9 - Physical and Chemical Properties

Appearance Color: Slightly yellow
Form: Clear liquid

Property Value At Temperature or Pressure

pH N/A
BP/BP Range 158 - 162 掳C
MP/MP Range N/A
Flash Point 62 掳C Method: closed cup
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 1.8 %
Upper: 6.9 %


ALDRICH - H41544 www.sigma-aldrich.com Page 3
Vapor Pressure N/A
SG/Density 0.938 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density 4 g/l
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A

10 - Stability and Reactivity

STABILITY
Stable: Stable.
Materials to Avoid: Oxidizing agents, Strong bases.

HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide.

HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur

11 - Toxicological Information

RTECS NUMBER: SA9100000

ACUTE TOXICITY

LD50
Oral
Rat
2520 mg/kg
Remarks: Behavioral:Tremor. Behavioral:Convulsions or effect on
seizure threshold. Liver:Other changes.

LD50
Oral
Mouse
3950 mg/kg

LD50
Intraperitoneal
Mouse
933 MG/KG

LD50
Skin
Rabbit
13500 mg/kg

IRRITATION DATA

Eyes
Human
100 ppm
15M


ALDRICH - H41544 www.sigma-aldrich.com Page 4
Skin
Rabbit
10 mg
24H
Remarks: Open irritation test

Skin
Rabbit
500 mg
Remarks: Open irritation test

Eyes
Rabbit
20 mg
Remarks: Severe irritation effect

Eyes
Rabbit
0.1 ml
24H
Remarks: Severe irritation effect

SIGNS AND SYMPTOMS OF EXPOSURE
Can cause CNS depression. Headache, nausea, drowsiness, and
fatigue. Blood effects. Prolonged or repeated contact with skin
can cause defatting and dermatitis. Contact with eyes can cause
redness, tearing, and blurred vision. Ingestion may cause
gastrointestinal irritation. To the best of our knowledge, the
chemical, physical, and toxicological properties have not been
thoroughly investigated.

ROUTE OF EXPOSURE
Skin Contact: Causes skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes eye irritation.
Inhalation: May be harmful if inhaled. Material is irritating to
mucous membranes and upper respiratory tract.
Ingestion: May be harmful if swallowed.

TARGET ORGAN INFORMATION
Blood. Liver. Kidneys.

12 - Ecological Information

ECOTOXICOLOGICAL EFFECTS

Test Type: LC50 Fish
Time: 96 h
Value: > 100 mg/l

Test Type: EC50 Daphnia
Species: Daphnia magna
Time: 24 h
Value: 9,000 mg/l

13 - Disposal Considerations

SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Burn in a chemical incinerator equipped with an
afterburner and scrubber but exert extra care in igniting as this


ALDRICH - H41544 www.sigma-aldrich.com Page 5
material is highly flammable. Observe all federal, state, and
local environmental regulations.

14 - Transport Information

RID/ADR
UN#: 1148
Class: 3
PG: III
Proper Shipping Name: Diacetone alcohol

IMDG
UN#: 1148
Class: 3
PG: III
Proper Shipping Name: Diacetone alcohol
Marine Pollutant: No
Severe Marine Pollutant: No

IATA
UN#: 1148
Class: 3
PG: III
Proper Shipping Name: Diacetone alcohol
Inhalation Packing Group I: No

15 - Regulatory Information

CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 603-017-00-7
INDICATION OF DANGER: F Xi
Highly Flammable. Irritant.
R-PHRASES: 11 36
Highly flammable. Irritating to eyes.
S-PHRASES: 7 16 24/25
Keep container tightly closed. Keep away from sources of
ignition - no smoking. Avoid contact with skin and eyes.

COUNTRY SPECIFIC INFORMATION

Germany
WGK: 1

SWITZERLAND
SWISS POISON CLASS: 4

NORWAY

Labelling for organic solvents where the package is 1liter or
more.
YL-tall m3/l: 5483
YL-group: 5
Risk phrases: 20
Harmful by inhalation.
Safety phrases: 38 42 210
In case of insufficient ventilation, wear suitable respiratory
equipment. During fumigation/spraying wear suitable respiratory
equipment. Use compressed air- or fresh air line breathing
apparatus in confined spaces.

16 - Other Information



ALDRICH - H41544 www.sigma-aldrich.com Page 6
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2004 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.

DISCLAIMER
For R&D use only. Not for drug, household or other uses.




ALDRICH - H41544 www.sigma-aldrich.com Page 7

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