PRODUCT SAFETY DATA SHEET
1- PRODUCT AND COMPANY IDENTIFICATION
Product: Silwet L Ag
Chemical family: Silicone-polyether copolymer
CAS Number: 27306 – 78 - 1
Type of product: Adjuvant - Moisturizing
Chemical composition: Modified heptamethyltrisiloxane with aliloxi polyethylene glycol methy
ester: 100%.
SENASA N°: 33.454
Manufacturer: Momentive Performance Materials
Distributor: Rizobacter Argentina S.A.
Telephone No: 02477 – 409400
Fax No: 02477 – 432893
2- RISKS CLASSIFICATION
Flammability: Flammable Class 3°
Toxicological classification: Class IV – Generally non-hazardous product
Emergency generalities:
WARNING! Harmful aerosol if inhaled. Causes eyes irritation. Vapor may cause blurry vision.
The ingestion repeteadly may cause injury to the liver, the kidneys, the thyroid, the male
and female reproductive systems and the blood forming system. The inhalation of aerosol of
the pure liquid repeteadly may cause damage to the eyes, the blood forming system, the kidneys,
the thymus, the respiratory tract and the nasal cavity.
Potential effects to health:
 Ingestion: There is not evidences of harmful effects in the available information. The
ingestion may cause injury to the liver, the thyroid, the kidney, the blood forming system,
the male and female reproductive systems. The prolonged and/or repeated contact may result
in injuries to: the liver, the thyroid, the kidneys, the blood forming system, the male and
female reproductive systems.
 Skin: There is no evidence of harmful effects in the available information. The prolonged
and/or repeated contact may cause skin irritation.
 Inhalation: Harmful effects from static vapor at room temperature. Inhalation of aerosol of
the neat material within a confined space could result in respiratory distress and eye injury.
The aerosol may cause injury to: the respiratory tract,the eyes, the nasal cavity, the blood
forming system. The prolonged and/or repeated exposure may cause the following effects:
damage to the respiratory tract, eye damage, damaged nasal cavity, damage to the blood forming
system.
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 Eyes: Liquid splashed into the eyes may cause discomfort. It may cause the
following effects: pain, excessive linking, tear production, excessive conjunctival redness,
swelling of the conjunctivae. These effects should be resolved within two weeks. It may occur
injury to the cornea. Prolonged exposure to vapor or aerosol may cause discomfort. Vapor may
cause blurry vision. These effects will be resolved within a few hours.
 Medical conditions aggravated: A knowledge of the available toxicology information
and of the physico-chemical properties of the material suggests that is unlikely that
overexposure aggravate existing medical conditions.
 Sub chronic (Target organ): Unknown.
 Chronic effects / carcinogenicity: For additional information, please see Section 8,
Toxicological information.
 Routes of exposure: Eyes; Inhalation.
3- PHYSICAL AND CHEMICAL PROPERTIES
Physical state: Liquid
Color / Odor :
Light yellow / Moderated, to polyether
Specific weight 20 º C / 20 º C : 1.0070
Solubility in water (20 °C): Dispersable
Vapor pressure (20 °C): < 1 mm Hg
Boiling point: > 150 º C
Vapor density (Air=1): Heavier than air
Decomposition temperature: Not determined
4- FIRST AIDS

Inhalation: Take the patient to a ventilated place. Artificial oxygen may be required.
Provide medical assistance.
 Skin: Wash immediately with abundant water and soap while taking off contaminated
clothing and shoes. If symptoms persist, provide medical assistance.

Eyes: Rinse immediately with abundant water, also under eyelids for at least 15 minutes.
Provide medical assistance if symptoms persist.

Ingestion: If the person is conscious, give him/her abundant water. Provide immediate
medical assistance.
Physician note: Severe eye irritation. The treatment is symptomatic and supportive.
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5- MEDIDAS CONTRA EL FUEGO
Ignition point:
Method:
Flammable limits in air - Lower (%):
Flammable limits in air - Higher (%):
Sensitibity to mechanical shock:
Sensitibity to static discharge:
116 °C; 241 °F
ASTM D 93
Not available
Not available
Not expected
Not expected
Fire extinguishing media: All common extinguishing agents are are suitable.
Special fire fighting procedures: Firefighters must wear NIOSH/MSHA approved positive
pressure self-contained breathing apparatus with full face mask and full protective clothing.
6- STORAGE AND HANDLING

Engineering controls: Use only in an area equipped with security showers;
Eye wash basin; It is necessary that the ventilation of the general area (mechanic) was
satisfactory if managed at low temperatures or in a covered equipment; Special local
ventilation is needed in places where it is considered that vapors may escape to the
working environment.
 Respiratory protection: Respirator with filter ABEK; in high concentrations use respiratory
protection with independent air supply. If exposure limits are exceeded or respiratory
irritation is experienced, NIOSH/MSHA approved respiratory protection must be worn.
Supplied air respirators may be needed for non-routine or emergency situations. Respiratory
protection must be provided according to OSHA regulations (see 29CFR 1910.134).

Protective gloves: Impermeable or chemical-resistant gloves.

Eyes and face protection: Lateral protection safety glasses.

Another protective equipment: Wear proper protective clothing and eyes/face protection.
 Precautions as regards handling and storage: Avoid skin and eyes contact. Keep away
from children. Attention: Do not inject humans. It may generate formladehyde at temperatures
higher than 150 °C.
 Other precautions: Consult to the manufacturer before using a pure liquid aerosol.
 Storage: Keep the contained closed. Store in its original container.
7- STABILITY AND REACTIVITY
Stability: Stable
Hazardous polymerization: It will no occur.
Hazardous thermal decomposition / Combustion products: In case of combustion, oxides of
carbon, silicon oxides and formaldehyde will be released; carbon monoxide is highly toxic if
inhaled; carbon dioxide in sufficient concentration may act as asphysxiant; acute
overexposure to products may result in respiratory tract irritation. This product contains
methylpolysiloxanes that may generate formaldehyde at approximately 300 °F(150°C) and
above in atmospheres containing oxygen. Formaldehyde is a skin and respiratory sensitizer,
eyes and throat irritatant, acute toxicant, and potential cancer hazard.
Incompatibility (materials to be avoided): Not known.
Conditions to be avoided: Not known.
8- TOXICOLOGICAL INFORMATION
 Acute oral: LD50; Specie: Rat.; > 2,000 mg/kg; Remarks: Very low toxicity
 Acute dermal: LD50; Specie: Rat.; > 2,000 mg/kg; Remarks: Very low toxicity
 Acute inhalation: LC50; Specie: Rat.; 2 mg/l; Remarks: Aerosol LC50;
Specie: Rat.; > 11.78 mg/l; Remarks: Aerosol, 5% diluted aqueous solution.
 Other: This material was not mutagenic in the Ames test or in three test system to mammals,
including the Chinese hamster ovary (CHO), HPRT gene mutation test , a micronucleous
cytogenitic assay in mice and a mammalian in vitro cytogenetic assay. In a repeated skin
application study with rats, this material proved moderate skin irritation that was resolved
during a post-application recovery period. There was no evidence of percutaneous cumulative
or specific organs toxicity, and no effects on the male and female reproductive systems.
Findings from a 14-day dietary feeding study with rats show that high dosage repeated
ingestion of this materia causes reversible adverse effects on the male and female
reproductive tracts. Additional effects seen include increased liver weight, altered blood
cytology/chemistry, and thyroid enlargement (primarily hypertrophy, with some hyperplasia).
Evidence of partial or complete recovery was found over a 28-day recovery period. Findings
from a repeat 9-day aerosol inhalation toxicity study with rats show a no-observable-effectlevel (NOEL) of less than 0,025 mg/l. Symptoms of toxicity included rales, gasping, ocular
opacity, prostration, hypothermia, reduced body weight gain and food consumption, changes
in clinical pathology, decreased thymus weight, and microscopic lesions in the nasal cavity.
There was no effect on the male and female reproductive systems. It is not anticipated that
the use of aqueous dilutions of this product would result in this type of aerosol exposure.
 Sensitization: Specie: guinea pigs; Result: it did not cause sensitization.
 Skin irritation: Specie: Rabbit; Result: No irritation
 Eye irritation: Specie: Rabbit; Result: Slight irritation
 Other effect of overexposure: No adverse effects anticipated from available information.
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9- ECOTOXICOLOGICAL INFORMATION
 Ecotoxicology: It is expected this product to be toxic to aquatic organisms.
It may cause long-term adverse effects in the aquatic environment.
 Toxicity to fish:
LC50
Specie: Zebra fish
Dose: 2,75 mg/l
Exposure time: 96 h
NOEC
Specie: Zebra fish
Dose: 0,56 mg/l
Exposure time: 96 h
 Toxicity to other organisms
Inmobilization
EC50
Specie: Daphnia similis
Dose : 22,61 mg/l
Exposure time: 48 h
NOEC
Specie: Daphnia similis
Dose: 10 mg/l
Exposure time: 48 h
 Toxicity to algae
EC50
Specie: Selenastrum capricornutum
Dose: 5.5 mg/l
Exposure time: 96 h
NOEC
Specie: Selenastrum capricornutum
Dose: 1 mg/l
Exposure time: 96h
 Information regarding elimination (persistence and degradability)
Biodegradability: Not readily biodegradable.
10- EMERGENCY ACTIONS
 Actions to be taken if material is released or spilled: Wipe, scrape or soak up in an inert
material and put in a container for disposal. Wash walking surfaces with detergent and water
to reduce slipping hazard. Wear proper protective equipments.
 Elimination method: Elimination should be carried out according to federal, state and
local regulations.
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11- TRANSPORT INFORMATION
DOT shipping name: Environmentally hazardous substances, liquid, n.o.s.(Polyalkyleneoxide
Modified Heptamethyltrisiloxane).
DOT hazard class: 9
DOT label(s): 9
UN/NA number: UN3082
NA3082
Packing group: III
IMDG Shipping name: Environmentally hazardous substances, liquid, n.o.s.(Polyalkyleneoxide
Modified Heptamethyltrisiloxane).
Class: 9
IMDG labels: 9
UN Number: UN3082
Packing group: III
EmS No.: F-A; S-F
IATA: Environmentally hazardous substances, liquid, n.o.s.(Polyalkyleneoxide
Modified Heptamethyltrisiloxane).
Class: 9
ICAO Labels: 9MI
UN Number: UN3082
Packing group: III
12- OTHER INFORMATION
CONTACT IN CASE OF POISONING:
· NATIONAL POISON CENTER - Hospital Nacional "Prof. Alejandro Posadas "
President Illia and Marconi Av CP 1684 - El Palomar - Province of Buenos Aires
TEL: 0-800-333-0160
(011) 4654-6648
(011) 4658-7777
Type of assistance: personal and telephone within 24 hours.
· Toxicology Unit - Hospital de Niños "Dr. Ricardo Gutiérrez"
Gallo 1330 CP 1425 - Ciudad Autónoma de Buenos Aires
TEL: (011) 4962-2247 / 6666
Type of assistance: personal and telephone within 24 hours.
· T.A.S. - Toxicology Consulting and Services
CP 1544 Tucumán 2000 - Rosario - Santa Fe Province of
TEL: (0341) 424-2727
448-0077
Type of assistance: personal and telephone within 24 hours.
· Toxicology Service - Hospital Escuela "José de San Martín"
Paraguay 2201 CP 1120 - Ciudad Autónoma de Buenos Aires
TEL: (011) 5950-8804 / 8806
Type of assistance: personal and telephone within 24 hours.
· CIQUIME - Chemistry Information Center for Emergencies
TEL: 0800-222-2933
(011) 4613-1100
Type of Assistance: Call 24 hours.
· Toxicology Service - Municipal Emergency Hospital
Catamarca 441 CP 5000 - Córdoba
TEL: (0351) 4276200
Type of assistance: personal and telephone within 24 hours.
COMMENTS:
Rizobacter Argentina S.A. assumes no implicit or explicit responsibility for damages of any nature,
arising from a use other than indicated on the product label and not recommended precautions
have been observed or not to keep it under normal conditions of storage.