SAFETY DATA SHEET according to Regulation 1907/2006
Product name:

NaVS 42

Creation date: 12.2.2008 · Revision: 18.8.0214 · Version: 1

1. Identification of the substance/mixture and of the company/undertaking

1.1. Product identifier

Product name

NaVS 42


Natrijevo vodno steklo; Natriumwasserglas; Sodium Waterglass

Chemical name

Silicic acid, sodium salt (CAS: 1344-09-8, EC: 215-687-4)

REACH Registration number


1.2. Relevant identified uses of the substance or mixture and uses advised against


industrial use

Uses advised against

No information

1.3. Details of the supplier of the safety data sheet


SILKEM d.o.o
Tovarniška cesta 10, 2325 Kidričevo, Slovenia
Tel: +386 2 7991 200
Fax: +386 2 7991 230


SILKEM, d. o. o.
Address: Tovarniška cesta 10, 2325 Kidričevo, Slovenia
Tel.: +386 2 7991 200
Fax: +386 2 7991 230

1.4. Emergency telephone number




+386 2 7991 208 (7h - 15h)

2. Hazards identification

2.1 Classification of the substance or mixture

Classification according to Reg. 1272/2008

Skin Irrit. 2; H315  Causes skin irritation.
Eye Irrit. 2; H319  Causes serious eye irritation.

Classification according to directive 67/548/EEC or. 99/45/EC

Xi; R36/37/38  Irritating to eyes, respiratory system and skin.
Xi; R41  Risk of serious damage to eyes.

2.2 Label elements

2.2.1. Labelling according to Regulation (EC) No 1272/2008 [CLP]

Signal word: Warning

H315  Causes skin irritation.
H319  Causes serious eye irritation.
P262  Do not get in eyes, on skin, or on clothing.
P280  Wear protective gloves/protective clothing/eye protection/face protection.
P303 + P361 + P353  IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305 + P351 + P338  IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P501  Dispose of contents/container in accordance with local regulation.

2.2.2. Contains:


2.2.3. Special provisions

Irritates eyes and skin.
Irritates respiratory system.

2.3. Other hazards

No information

3. Composition/information on ingredients

3.1. Substances

Chemical name CAS
% Classification according to Regulation (EC) No 1272/2008 [CLP] Classification according to directive 67/548/EEC or 99/45/EC REACH reg. number
Silicic acid, sodium salt 1344-09-8
33-35 Skin Irrit. 2; H315
Eye Irrit. 2; H319
Xi; R36/38 01-2119448725-31-0029

3.2. Mixtures

For substances see 3.1.

4. First aid measures

4.1. Description of first aid measures

General measures

In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). Never give anything by mouth to an unconscious person. Place patient stably in side position for transportation.


Ventilate the premises. Inhale fresh air. If difficulties with breathing do not stop, search for medical help.

Skin contact

Areas of the body that have come into contact with the product must be rinsed immediately with plenty of running water. If feeling unwell seek medical help.

Eye contact

Immediately flush eyes with plenty of water while keeping eyelids open (at least 15 minutes). Consult a physician. Recommendation (based on practical experience): wash with plenty of water or with 3% boric acid solution.


Rinse mouth with water. Drink 2 glasses of water. Do not induce vomiting. Consult a physician.

4.2. Most important symptoms and effects, both acute and delayed


Intoxication, vertigo, headache, nausea.

Skin contact

Contact with skin causes irritation.
Prolonged or repeated exposure causes slight skin inflammation: signs/symptoms: localised redness, swelling, itching and dryness.

Eye contact

Redness, tearing, pain.
Symptoms may include: rubescence, edema, pain and lachrymation.


May cause abdominal discomfort.
Signs and symptoms: headache, dizziness, fatigue, confusion, drowsiness, salivation, abdominal convulsion, weakness, diarrhoea, vomiting, unconsciousness, paralyse breathing.

4.3. Indication of any immediate medical attention and special treatment needed


5. Firefighting measures

5.1. Extinguishing media

Suitable extinguishing media

Use the usual extinguishing measures (carbon dioxide (CO2), dry chemical, foam; water spray)

Unsuitable extinguishing media

Full water jet.

5.2. Special hazards arising from the substance or mixture

Hazardous combustion products


5.3. Advice for firefighters

Protective actions

In case of fire or heating do not breathe fumes/vapours.

Special protective equipment for fire-fighters

Select according to conditions and other factors.


6.1. Personal precautions, protective equipment and emergency procedures

6.1.1. For non-emergency personnel

Protective equipment

Use personal protective equipment (Section 8). Avoid contact with the eyes and skin.

Emergency procedures

Ensure adequate ventilation.

6.1.2. For emergency responders


6.2. Environmental precautions

Do not allow product to reach water/drains/sewage systems and ground water. If accidental entry into water or ground occurs, inform responsible authorities.

6.3. Methods and material for containment and cleaning up

6.3.1. For containment


6.3.2. For cleaning up

Absorb with inert material (sand, flinstone (diatomite soil), universal binder, sawdust). Pick up mechanically and remove it in accordance with regulation.

6.3.3. Other information


6.4. Reference to other sections

See also sections 8 and 13.

7. Handling and storage

7.1. Precautions for safe handling

7.1.1. Protective measures

Measures to prevent fire

Ensure adequate ventilation.

Measures to prevent aerosol and dust generation


Measures to protect the environment


7.1.2. Advice on general occupational hygiene

Avoid contact with skin and eyes. Do not breathe vapours/mist. Do not eat, drink or smoke while working. Use good personal hygiene practices-wash hands at breaks and when done working with material.

7.2. Conditions for safe storage, including any incompatibilities

7.2.1. Technical measures and storage conditions

Keep in cool and well ventilated area. Keep in tightly closed container.

7.2.2. Packaging materials


7.2.3. Requirements for storage rooms and vessels


7.2.4. Storage class


7.2.5. Further information on storage conditions


7.3. Specific end use(s)



Industrial sector specific solutions


8. Exposure controls/personal protection

8.1. Control parameters

8.1.1. Occupational Exposure limit values

Chemical name (CAS) Limit values Short-term exposure limit Remarks Biological Tolerance Values
Silicic acid, sodium salt (1344-09-8) 10 UK, DE, IUCLID

Exposure limit values (IUCLID)

Chemical name value interval x time Type
Silicic acid, sodium salt (1344-09-8) 10 mg/m3 10 mg/m3 (6 x 8h) OES (UK)
Silicic acid, sodium salt (1344-09-8) 10 mg/m3 10 mg/m3 (6 x 8h) MAK (DE)
Source: IUCLID (For information only)

8.1.2. Information on monitoring procedures

BS EN 14042:2003 Title Identifier: Workplace atmospheres. Guide for the application and use of procedures for the assessment of exposure to chemical and biological agents.

8.1.3. DNEL values

For components

Chemical name Type exp. route exp. frequency value Remark
Silicic acid, sodium salt (1344-09-8) Worker dermal long term (systemic effects) 1,59 mg/kg bw/day
Silicic acid, sodium salt (1344-09-8) Worker inhalation long term (systemic effects) 5,61 mg/m³
Silicic acid, sodium salt (1344-09-8) Consumer dermal long term (systemic effects) 0,8 mg/kg bw/day
Silicic acid, sodium salt (1344-09-8) Consumer inhalation long term (systemic effects) 1,38 mg/m³
Silicic acid, sodium salt (1344-09-8) Consumer oral long term (systemic effects) 0,8 mg/kg bw/day

8.1.4. PNEC values

For components

Chemical name exp. route value Remark
Silicic acid, sodium salt (1344-09-8) fresh water 7,5 mg/L
Silicic acid, sodium salt (1344-09-8) marine water 1 mg/L
Silicic acid, sodium salt (1344-09-8) water, intermittent release 7,5 mg/L
Silicic acid, sodium salt (1344-09-8) fresh water sediment 7,5 mg/kg
Silicic acid, sodium salt (1344-09-8) water treatment plant 348 mg/L
Silicic acid, sodium salt (1344-09-8) food chain 348 mg/kg oral

8.2. Exposure controls

8.2.1. Appropriate engineering control

Substance/mixture related measures to prevent exposure during identified uses

Use good personal hygiene practices-wash hands at breaks and when done working with material.

Organisational measures to prevent exposure

Remove all contaminated clothes immediately and wash them before reuse.

8.2.2. Personal protective equipment

Eye and face protection

Tight fitting protective goggles (EN 166).

Hand protection

Protective gloves (EN 374).

Skin protection

Cotton protective clothing (EN ISO 13688) and shoes that cover the entire foot (EN ISO 20345).

Respiratory protection

Not needed under normal use and adequate ventilation. If needed use respiratory protection-suitable mask with filter.

Thermal hazards


8.2.3. Environmental exposure controls



9.1. Information on basic physical and chemical properties

- Physical state: liquid
- Colour: colorless
- Odour: odourless

Important health, safety and environmental information

- pH 11,5 – 12,3
- Melting point/Freezing point > 0 °C
- Initial boiling point/boiling range > 100 °C
- Flashpoint No information
- Evaporation rate No information
- Ignition temperature No information
- Explosion limits (vol%) No information
- Vapour pressure No information
- Vapour density No information
- Density Density:
1,39 – 1,42 g/cm3
- Solubility Water:
Completely soluble
- Partition coefficient No information
- Auto-ignition temperature No information
- Decomposition temperature No information
- Viscosity No information
- Explosive properties No information
- Oxidising properties No information

9.2. Other information

- Remarks:


10.1. Reactivity


10.2. Chemical stability

Product is stable under normal conditions according to handling and storage.

10.3. Possibility of hazardous reactions


10.4. Conditions to avoid

No special precautions required. Consider the directions for use and storage.

10.5. Incompatible materials

Aluminium. Magnesium, zinc.
Mineral acid.

10.6. Hazardous decomposition products

Under normal use conditions no hazardous decomposition products expected.

11. Toxicological information

11.1. Information on toxicological effects

11.1.1. Acute toxicity

For components
Chemical name exp. route Type species Time value Method Remark
(1344-09-8)* oral LD50 mouse 770 – 39800 mg/kg
(1344-09-8)* oral LD50 rat 1153 – 39800 mg/kg
(1344-09-8)* inhalation LC50 rat 1 h 18 – 18 mg/l
* Source: IUCLID (For information only)

11.1.2. Skin corrosion/irritation, serious eye damage/irritation

No information

11.1.3. Respiratory or skin sensitisation

No information

11.1.4. Carcinogenicity, Mutagenicity, Reproductive toxicity


No information

(Germ cell) mutagenicity

No information

Reproductive toxicity

No information

Summary of evaluation of the CMR properties

No information

11.1.5. STOT - single and repeated exposure

No information

11.1.6. Aspiration hazard

No information

12. Ecological information

12.1. Toxicity

12.1.1. Acute (short-term) toxicity

Acute toxicity of ingredients (IUCLID)

CAS Species
Fish Daphnia Algae
1344-09-8 LC50/96h: 301 - 478 mg/l *
LC50/96h: 3185 - 478 mg/l *
EC50/96h: 160 - 18000 mg/l *
EC50/96h: 216 - 18000 mg/l *
LC50/72h: 10000 - 320 mg/l *
EC50/96h: 216 - 18000 mg/l *
 Source: IUCLID (For information only)

12.1.2. Chronic (long-term) toxicity

No information

12.2. Persistence and degradability

12.2.1. Abiotic degradation, physical- and photo-chemical elimination

No information

12.2.2. Biodegradation

No information

12.3. Bioaccumulative potential

12.3.1. Partition coefficient

No information

12.3.2. Bioconcentration factor (BCF)

No information

12.4. Mobility in soil

12.4.1. Known or predicted distribution to environmental compartments

No information

12.4.2. Surface tension

No information

12.4.3. Adsorption/Desorption

No information

12.5. Results of PBT and vPvB assessment

No evaluation.

12.6. Other adverse effects

No information

12.7. Additional information

For product

Do not allow to enter ground water, water course or sewage system.
Avoid release to the environment.

13. Disposal considerations

13.1. Waste treatment methods

13.1.1. Product / Packaging disposal

Waste chemical

Disposal must be made according to official regulations: to leave it to authorized collector/remover/transformer of hazardous waste. Do not allow product to reach drans/sewage systems.

- Waste codes / waste designations according to LoW

06 02 99 - wastes not otherwise specified


Completely emptied containers leave to approved waste disposal authorities in charge.

- Waste codes / waste designations according to LoW

15 01 02 - plastic packaging

13.1.2. Waste treatment-relevant information


13.1.3. Sewage disposal-relevant information


13.1.4. Other disposal recommendations


14. Transport information

14.1. UN number

not applicable

14.2. UN proper shipping name

ADR, RID, IMDG, ADN, IATA: Not dangerous according to transport regulations.

14.3. Transport hazard class(es)

not applicable

14.4. Packing group

not applicable

14.5. Environmental hazards


14.6. Special precautions for user

not applicable

14.7. Transport in bulk according to Annex II of Marpol and the IBC Code

not applicable

15. Regulatory information

15.1. Safety, health and environmental regulations/legislation specific for the substance or mixture

- Regulation (EC) No 1907/2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)

- Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures

- Dangerous preparations directive (99/45/EC) as amended

- Dangerous substances directive (67/548/EEC) as amended

15.1.1. Information according 2004/42/EC about limitation of emissions of volatile organic compounds (VOC-guideline)

not applicable

15.2. Chemical Safety Assessment

No Chemical Safety Assessment has been carried out for this substance/mixture by the supplier.

16. Other information

Indication of changes


Key literature references and sources for data

MSDS,Silkem d.o.o., Natrijevo vodno steklo-NaVS 42, 7.1.2000, version 1

List of relevant R phrases

R36/38  Irritating to eyes and skin.

List of relevant H phrases

H315  Causes skin irritation.
H319  Causes serious eye irritation.

The information of this SDS is based on the present state of our knowledge and meets the requirements of EU and national laws. The user’s working conditions however, are beyond our knowledge and control. The product is not to be used for purposes other than those specified under section 1 without a written permission. It remains the responsibility of the user to ensure that the necessary steps are taken to meet the laws and regulations. Handling of the product may only be done by people above 18 years of age, who are satisfactorily informed of how to do the work, the hazardous properties and necessary safety precautions. The information given in this SDS is to describe the product only in terms of health and safety requirements and should not, therefore, be construed as guaranteeing specific properties.