Chemical Name

CAS-Number

Colour/Form

Boiling Point (°C)

Melting Point  (°C)

Molecular Weight

Solubility in Water

Relative Density (water=1)

Relative Vapour Density (air=1)

Vapour Pressure/ (Kpa)

Inflam.
Limits

Flash Point (°C)

Auto Ignition Point (°C)

DIALLYL PHTHALATE
131-17-9

nearly colourless oily liquid

160-163

-70

246.26

@ 25 °C

1.120

8.3

@ 150 °C

166

DIBUTYL PHTHALATE
84-74-2

colourless to faint yellow viscous liquid; oily liquid

340

-35

278.34

insol

1.0459

9.58

<0.01

0.5 ll
25.0 ul

157 cc

402

DICYCLOHEXYL­PHTHALATE
84-61-7

white, granular solid

@ 4 mm Hg

66

330.4

insol

1.383

@ 150 °C

207

DIETHYL PHTHALATE
84-66-2

colourless, oily liquid

295

-40.5

222.3

insol

1.1175

7.7

@ 75 °C

0.7

161 oc

457

DIISODECYL PHTHALATE
26761-40-0

@ 4 mm Hg

-50

446.7

insol

0.966

@ 200 °C

0.3 ll
? ul

232 oc

402

DIISOOCTYL PHTHALATE
27554-26-3

nearly colourless, viscous liquid

370

-4

390.54

insol

0.986

13.5

<10 Pa

227

393

DIMETHYL PHTALATE
131-11-3

oily-liquid; colourless viscous liquid; pale yellow crystals

283.7

5.5

194.2

insol

1.1905

6.69

<0.01 mm Hg

0.9 ll
? ul

132

490

DIMETHYL TEREPHTHALATE
120-61-6

colourless crystals; needles from ether

288

140

194.2

sl sol

@ 25 °C

5.5

@ 150 °C

0.8 ll
11.8 ul

146 oc

500

DI-sec-OCTYL PHTALATE
117-81-7

light coloured liquid; colourless oily liquid

384

-50

390.54

@ 25 °C

0.9861

16.0

0.001

0.3 ll
? ul

215 oc

390

PHTHALIC ACID, DIHEPTYL ESTER
3648-21-3

colourless liquid

360

362.45

0.01%

PHTHALIC ACID, DIISOBUTYL ESTER
84-69-5

liquid

296.5

-64

278.33

insol

@ 15 °C

185 oc

432

 

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Friday, 12 August 2011 00:50

Phthalates: Physical & Chemical Hazards

Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

DIALLYL PHTHALATE
131-17-9

The substance will polymerize if not inhibited, due to heating or in the presence of a catalyst • On combustion, forms toxic carbon oxides • Reacts with strong oxidants, bases and acids

DIBUTYL PHTHALATE
84-74-2

As a result of flow, agitation, etc, electrostatic charges can be generated

The substance decomposes on burning producing toxic and irritating fumes (phthalic anhydride)

DICYCLOHEXYL PHTHALATE
84-61-7

Reacts with acids, bases

DIETHYL PHTHALATE
84-66-2

The substance decomposes on heating or on burning producing toxic fumes and gases (phthalic anhydride) • Attacks some plastics

DIISODECYL PHTHALATE
26761-40-0

Attacks some forms of plastics

DIISOOCTYL PHTHALATE
27554-26-3

Reacts with strong oxidants

DI-sec-OCTYL PHTALATE
117-81-7

Reacts with strong oxidants, acids, alkalis, and nitrates

For UN Class: 1.5 = very insensitive substances which have a mass explosion hazard; 2.1 = flammable gas; 2.3 = toxic gas; 3 = flammable liquid; 4.1 = flammable solid; 4.2 = substance liable to spontaneous combustion; 4.3 = substance which in contact with water emits flammable gases; 5.1 = oxidizing substance; 6.1 = toxic; 7 = radioactive; 8 = corrosive substance

 

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Friday, 12 August 2011 00:48

Phthalates: Health Hazards

Chemical Name

CAS-Number

ICSC Short-Term Exposure

ICSC Long-Term Exposure

ICSC Routes of Exposure and Symptoms

US NIOSH Target Organs Routes of Entry

US NIOSH Symptoms

DIALLYL PHTHALATE     131-17-9

eyes; skin; lungs

liver

Ingestion: diarrhoea, laboured breathing

DIBUTYL PHTHALATE      84-74-2

Eyes; resp sys; GI tractInh; ing; con

Irrit eyes, upper resp sys, stomach

DICYCLOHEXYL PHTHALATE     84-61-7

eyes; skin; resp. tract

DIETHYL PHTHALATE      84-66-2

eyes; skin; CNS

Inhalation: dizziness, dullness

Skin: redness

Eyes: redness, pain

Eyes; skin; resp sys; CNS; PNS; repro sysInh; inh; con

Irrit eyes, skin, nose, throat; head, dizz, nau; lac; possible polyneur, vestibular dysfunc; pain, numb, weak, spasms in arms & legs; in animals: repro effects

DIISODECYL PHTHALATE     26761-40-0

eyes; skin

liver

Skin: redness

Eyes: redness

Ingestion: dizziness, nausea, vomiting

DIMETHYL PHTHALATE     131-11-3

eyes; nose; throat

birth defects

Eyes; resp sys; GI tractInh; ing; con

Irrit eyes, upper resp sys; stomach pain

DIMETHYL TEREPHTHALATE     120-61-6

eyes

DI-sec-OCTYL PHTHALATE     117-81-7

eyes; skin; resp. tract; lungs; GI tract

skin

Inhalation: cough, sore throat

eyes; GI tract; resp sys; CNS; liver; repro sys (in animals: liver tumors)Inh; ing; con

Irrit eyes, muc memb; in animals: liver damage; terato effects; (carc)

 

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Friday, 12 August 2011 00:46

Phthalates: Chemical Identification

Chemical Formula

Chemical

Synonyms
UN Code

CAS-Number

131179

DIALLYL PHTHALATE

1,2-Benzenedicarboxylic acid, di-2-propenyl ester ;
Phthalic acid, diallyl ester;
o-Phthalic acid, diallyl ester

131-17-9

84742

DIBUTYL PHTHALATE

o-Benzenedicarboxylic acid, dibutyl ester;
Benzene-o-dicarboxylic acid di-n-butyl ester;
DBP;
Dibutyl 1,2-benzenedicarboxylate;
Dibutyl phthalate;
Di-n-butyl phthalate;
n-Butylphthalate;
Polycizer dbp

84-74-2

84617

DICYCLOHEXYL PHTHALATE

1,2-Benzenedicarboxylic acid, dicyclohexyl ester;
Phthalic acid, dicyclohexyl ester

84-61-7

84662

DIETHYL PHTHALATE

1,2-Benzenedicarboxylic acid, diethyl ester;
Ethyl phthalate;
Neantine;
Palatinol a;
Phthalol

84-66-2

3648213

DIHEPTYL PHTHALATE

Di-n-heptyl phthalate;
Heptyl phthalate

3648-21-3

26761400

DIISODECYL PHTHALATE

1,2-Benzenedicarboxylic acid, bis(isodecyl)phthalate;
DIDP (plasticizer);
Diisodecyl phthalate;
Phthalic acid, diisodecyl ester

26761-40-0

131113

DIMETHYL PHTHALATE

1,2-Benzenedicarboxylic acid, dimethyl ester;
Dimethyl-1,2-benzenedicarboxylate;
DMP;
Methyl phthalate;
Phthalic acid methyl ester

131-11-3

117817

DI-sec-OCTYL PHTHALATE

1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester;
Bis(2-ethylhexyl)-1,2-benzenedicar­boxylate;
Bis(2-ethylhexyl)phthalate;
Di(2-ethylhexyl)orthophthalate

117-81-7

84695

PHTHALIC ACID, DIISOBUTYL ESTER

DIBP;
Diisobutyl phthalate;
Hexaplas M;
1B;
Palatinol IC

84-69-5

27554263

PHTHALIC ACID, DIISOOCTYL ESTER

1,2-Benzenedicarboxylic acid, diisooctyl ester;
Diisooctyl phthalate;
Isooctyl phthalate;
Phthalic acid, bis(6-methylheptyl)ester

27554-26-3

27253265

PHTHALIC ACID, DIISOTRIDECYL ESTER

1,2-Benzenedicarboxylic acid, diisotri­decyl ester;
Diisotridecyl phthalate

27253-26-5

636099

TEREPHTHALIC ACID, DIETHYL ESTER

1,4-Benzenedicarboxylic acid, diethyl ester;
Diethyl terephthalate

636-09-9

120616

TEREPHTHALIC ACID, DIMETHYL ESTER

1,4-Benzenedicarboxylic acid, dimethyl 1,4-benzenedicarboxylate;
Dimethyl p-phthalate;
Dimethyl terephthalate;
DMT;
Methyl 4-carbomethoxybenzoate;
Terephthalic acid methyl ester

120-61-6

 

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Chemical Name
CAS-Number

Colour/Form

Boiling Point (°C)

Melting Point (°C)

Molecular Weight

Solubility in Water

Relative Density (water=1)

Relative Vapour Density (air=1)

Vapour Pressure/ (Kpa)

Inflam.
Limits

Flash Point (°C)

Auto Ignition Point (°C)

CALCIUM SILICATE
1344-95-2

white powder

insol

2.9

ETHYL SILICATE
78-10-4

colourless liquid

168.8

-82.5

208.30

insol

0.933

7.22

1.0 mm Hg

1.3 ll
23 ul

52 oc

METHYL DICHLOROSILANE
75-54-7

colourless liquid

41

-93

115.04

sl sol

@ 27 °C

3.97

46

6.0 ll
55 ul

-9 cc

316

METHYL SILICATE
681-84-5

colourless liquid

121-122

-2

152.25

reacts

1.032

5.3

2.2

METHYL TRICHLOROSILANE
75-79-6

colourless liquid

66.4

-90

149.48

reacts

@ 25 °C

5.17

17.9

5.1 ll
? ul

8

404

POLYDIMETHYLSIL­OXANE
9016-00-6

clear fluids available in wide range of viscosities

insol

0.97

>200

SILANE, DICHLORO-
4109-96-0

compressed, liquified gas

8.2

-122.0

101.01

1.22

3.484

4.1 ll
99 ul

-307

100 58

SILICIC ACID, DISODIUM SALT
6834-92-0

colourless monoclinic crystals; usually obtained as a glass; also orthorhombic crystals; dustless white granules

1089

122.07

sol

2.614

SILICON CARBIDE
409-21-2

exceedingly hard, green to bluish-black, iridescent, sharp crystals; hexagonal or cubic

2600

40.07

insol

3.23

SILICON MONOXIDE
10477-28-6

amorphous black solid

2.15-2.18

SILICON TETRAHYDRIDE
7803-62-5

gas; colourless

-112

-185

32.13

slowly decomposes

@ 19 °C

1.114

1.37

-22

SILICON TETRA­FLUORIDE
7783-61-1

colourless gas

-86

-90.2

104.06

@ -80 °C (liquid)

3.57

SILICON
7440-21-3

black to gray, lustrous, needle-like crystals or octahedral platelets (cubic system); amorphous form is dark brown powder

2355

1410

28.0855

insol

@ 25 °C/4 °C

SODIUM SILICATE
1344-09-8

colourless to white or grayish-white, crystal-like pieces or lumps; lumps of greenish glass; white powders; liquids cloudy or clear

sl sol

TETRACHLOROSILANE
10026-04-7

colourless, clear, mobile liquid

59

-70

169.89

@ 0 °C/4 °C

5.9

@ 5.4 °C

TRICHLOROSILANE
10025-78-2

colourless liquid

31.8

-126.5

135.47

1.3417

4.7

@ -16.4 °C

1.2 ll
90.5 ul

-14 oc

93-104

TRIMETHYLCHLOR­OSILANE
75-77-4

colourless liquid

57

-57.7

108.66

reacts

@ 25 °C

3.75

26.7

1.8 ll
6 ul

-27

 

Back

Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

ETHYL SILICATE
78-10-4

3

METHYL DICHLOROSILANE
75-54-7

4.3/ 3/ 8

METHYL TRICHLOROSILANE
75-79-6

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on heating producing hydrogen chloride • Reacts violently with strong oxidants • Reacts violently with water and moisture producing hydrogen chloride, causing fire and explosion hazard • Attacks metals like aluminium and magnesium

3/ 8

POLYDIMETHYLSILOXANE
9016-00-6

The substance decomposes on heating (>150 ºC) producing formaldehyde in small amounts

SILANE, DICHLORO-
4109-96-0

The gas is heavier than air

Reacts violently with water • On contact with air it emits hydrogen chloride

SILICIC ACID, DISODIUM SALT
6834-92-0

The substance is a strong base, it reacts violently with acid and is corrosive in moist air to metals like zinc, aluminium, tin and lead forming a flammable/explosive gas (hydrogen)

SILICON TETRAHYDRIDE
7803-62-5

The gas is heavier than air

The substance may spontaneously ignite on contact with air room temperature

SILICON TETRAFLUORIDE
7783-61-1

The gas is heavier than air

Reacts violently with water • On contact with air it emits hydrogen fluoride

2.3/ 8

SILICON
7440-21-3

4.1

TETRACHLOROSILANE
10026-04-7

The vapour is heavier than air

Reacts violently with water • On contact with air it emits hydrogen chloride and silicic acid

TRICHLOROSILANE
10025-78-2

The vapour is heavier than air and may travel along the ground; distant ignition possible

Reacts violently with water • On contact with air it emits hydrogen chloride • Attacks many metals in presence of water

4.3/ 3/ 8

TRIMETHYLCHLOROSILANE
75-77-4

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on heating producing toxic and corrosive fumes (hydrogen chloride, phosgene) • Reacts violently with water, ketones, alcohol, amines and many other substances, causing explosion hazard • On contact with air it emits corrosive fumes of hydrogen chloride

3/ 8

For UN Class: 1.5 = very insensitive substances which have a mass explosion hazard; 2.1 = flammable gas; 2.3 = toxic gas; 3 = flammable liquid; 4.1 = flammable solid; 4.2 = substance liable to spontaneous combustion; 4.3 = substance which in contact with water emits flammable gases; 5.1 = oxidizing substance; 6.1 = toxic; 7 = radioactive; 8 = corrosive substance

 

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Chemical Name    

CAS-Number

ICSC Short-Term Exposure

ICSC Long-Term Exposure

ICSC Routes of Exposure and Symptoms

US NIOSH Target Organs & Routes of Entry

US NIOSH Symptoms

ETHYL SILICATE            78-10-4

Resp sys; liver; kidneys; blood; skin; eyes Inh; ing; con

Irrit eyes, nose; in animals: lac, dysp, pulm edema; tremor, narco; liver, kidney damage; anemia

METHYL DICHLOROSILANE     75-54-7

eyes; skin; resp tract; lungs

METHYL SILICATE     681-84-5

resp tract; eyes; lungs

kidneys; liver

Inhalation: burning sensation, cough, shortness of breath, sore throat, symptoms may be delayed

Eyes: redness, pain, loss of vision

Eyes; resp sys; kidneys Inh; ing; con (vapliq)

Irrit eyes, corn damage (following even short term exposure to vapor); lung, kidney inj; pulm edema

METHYL TRICHLOROSILANE     75-79-6

eyes; skin; resp tract; lungs

Inhalation: corrosive, burning sensation, cough, shortness of breath, unconsciousness, symptoms may be delayed

Skin: corrosive, redness, skin burns, pain, blisters

Eyes: corrosive, redness, pain, loss of vision, severe deep burns

POLYDIMETHYLSILOXANE     9016-00-6

eyes

Eyes: redness, pain

SILANE, DICHLORO-     4109-96-0

eyes; skin; resp tract; lungs

lungs

Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat

Skin: redness, skin burns, burning sensation, pain, blisters

Eyes: redness, pain, loss of vision

SILICON TETRAHYDRIDE     7803-62-5

eyes; resp tract; lungs

lungs

Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat, symptoms may be delayed

Eyes: redness, pain

Ingestion: weakness

Eyes; skin; resp sys; CNS Inh

Irrit eyes, skin, muc memb; nau, head

SILICIC ACID, DISODIUM SALT     6834-92-0

eyes; skin; resp tract; lungs

skin

Inhalation: burning sensation, cough, shortness of breath

Skin: redness, serious skin burns, pain, blisters

Eyes: redness, pain, blurred vision, severe deep burns

Ingestion: burning sensation, diarrhoea, shock or collapse, vomiting, collapse

SILICON TETRAFLUORIDE     7783-61-1

eyes; skin; resp tract; lungs

Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat

Skin: redness, skin burns, pain, blisters

Eyes: redness, pain, loss of vision, severe deep burns

TETRACHLOROSILANE     10026-04-7

eyes; lungs

Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat

Skin: redness, skin burns, pain, blisters

Eyes: redness, pain, loss of vision, severe deep burns

TRICHLOROSILANE     10025-78-2

eyes; skin; resp tract; lungs

lungs

Inhalation: burning sensation of the chest, cough, laboured breathing, shortness of breath, sore throat

Skin: redness, skin burns, burning sensation, pain, blisters

Eyes: redness, pain, loss of vision

TRIMETHYLHLOROSILANE     75-77-4

eyes; skin; resp tract; lungs

skin

Ingestion: Inhalation: burning sensation, cough, laboured breathing

Skin: redness, pain, blisters

Eyes: redness, pain, severe deep burnsabdominal pain, burning sensation, weakness

 

Back

Chemical Formula

Chemical

Synonyms
UN Code

CAS-Number

1344952

CALCIUM SILICATE

Calcium hydrosilicate;
Calcium monosilicate;
Calcium polysilicate;
Calcium silicate;
Calflo E;
Calsil;
CS lafarge;
Florite R;
Marimet 45;
Microcal 160;
Promaxon P60;
Silene WF;
Silmos t;
Solex;
Stabinex NW 7PS;
Starlex l;
SW 400;
Toyofine A

1344-95-2

78104

ETHYL SILICATE

Ethyl orthosilicate;
Ethyl silicate;
Extrema;
Silane, tetraethoxy-;
TEOS;
Tetraethoxysilane;
Tetraethyl orthosilicate;
Tetraethyl silicate
UN1292

78-10-4

75547

METHYL DICHLOROSILANE

Dichloromethylsilane
UN1242

75-54-7

681845

METHYL SILICATE

Methyl orthosilicate;
Methyl silicate;
Silicic acid, methyl ester of ortho-;
Silicic acid, tetramethyl ester;
Tetramethoxysilane;
Tetramethyl silicate
UN2606

681-84-5

75796

METHYL TRICHLOROSILANE

Methylsilicochloroform;
Methylsilyl trichloride;
Trichloromethylsilane
UN1250

75-79-6

9016006

POLYDIMETHYLSILOXANE

Af 72;
Af 75;
Dimethicone 350;
Dow Corning 346;
Geon;
Good-rite;
Gum;
Hycar;
Latex;
Methyl silicone;
Polymethylsiloxane

9016-00-6

4109960

SILANE, DICHLORO-

4109-96-0

6834920

SILICIC ACID, DISODIUM SALT

B-W;
Crystamet;
Disodium metasilicate;
Disodium monosilicate;
Metso 20;
Metso beads, drymet;
Silicic acid, disodium salt ;
Sodium silicate;
Water glass

6834-92-0

Si

SILICON

7440-21-3

SiC

SILICON CARBIDE

Annanox CK;
Betarundum;
Ultrafine;
Carbofrax M;
Carbolon;
Carbon silicide;
Crystar;
Crystolon 37;
Crystolon 39;
Densic c 500

409-21-2

SiO

SILICON MONOXIDE

10477-28-6

7803625

SILICON TETRAHYDRIDE

Flots 100SCO;
Monosilane;
Silane;
Silicane
UN2203

7803-62-5

7783611

SILICON TETRAFLUORIDE

Perfluorosilane;
Silane, tetrafluoro-;
Tetrafluorosilane
UN1859

7783-61-1

10026047

TETRACHLOROSILANE

Extrema;
Silicon chloride;
Silicio(tetracloruro di);
Silicon tetrachloride
UN1818

10026-04-7

10025782

TRICHLOROSILANE

Silicochloroform;
Trichloromonosilane
UN1295

10025-78-2

75774

TRIMETHYL CHLOROSILANE

Chlorotrimethylsilane;
Silane, trimethylchloro-;
Silicane, chlorotrimethyl-;
Tl 1163;
Trimethylsilyl chloride
UN1298

75-77-4

 

Back

Chemical Name
CAS-Number

Colour/Form

Boiling Point (°C)

Melting Point (°C)

Molecular Weight

Solubility in Water

Relative Density (water=1)

Relative Vapour Density (air=1)

Vapour Pressure/ (Kpa)

Inflam.
Limits

Flash Point (°C)

Auto Ignition Point (°C)

n-BUTYLMERCAPTAN
109-79-5

colourless liquid

98.4

-115.7

90.2

sl sol

0.8337

3.1

4.0

2 cc

<225

tert-BUTYLMERCAPTAN
75-66-1

mobile liquid; colourless liquid

64

-0.5

90.2

insol

0.8002

3.1

19.0

-26 cc

CETYLMERCAPTAN
2917-26-2

liquid or solid

184

18

insol

0.84

8.9

10 Pa

135

CYCLOHEXYLMER­CAPTAN
1569-69-3

liquid

158

-118

116.2

insol

0.9782

4.00

1.3

43 cc

DECYLMERCAPTAN
143-10-2

colourless liquid

241

-26

174.3

insol

0.84

6.0

<10 Pa

DODECYLMERCAPTAN
112-55-0

water-white to pale yellow liquid; oily colourless liquid

@ 15 mm Hg

-7

202.4

insol

0.8450

7.0

@ 25 °C

1278 oc

230

ETHYLMERCAPTAN
75-08-1

colourless liquid

35

-144.4

62.13

sl sol

0.83907

2.14

589

2.8 ll
18.0 ul

-483

299

n-HEPTYLMERCAPTAN
1639-09-4

177

-43

132.26

insol

0.8427

n-HEXYLMERCAPTAN
111-31-9

151

-81

118.23

insol

0.8424

2-MERCAPTOETHANOL
60-24-2

water-white mobile liquid

@ 742 mm Hg

78.13

sol

1.1143

2.7

1.00 mm Hg

METHYLMERCAPTAN
74-93-1

water-white liquid when below boiling point, or colourless gas

5.9

-123

48.1

sl sol

0.8665

1.66

@ 26.1 °C

3.9 ll
21.8 ul

-18

METHANESULFONYL CHLORIDE
124-63-0

pale yellow liquid

@ 18 mm Hg

-32

114.55

insol

1.4573

OCTADECANETHIOL
2885-00-9

solid

205-209

25

0.8420

n-OCTANETHIOL
111-88-6

water-white liquid

199.1

-49.2

146.30

0.8433

46

1-PENTANETHIOL
110-66-7

liquid

@ 460 mm Hg

-75.7

104.21

insol

0.8421

3.59

@25 °C

18 oc

PERCHLOROME­THYLMERCAPTAN
594-42-3

oily, yellow liquid; yellow to orange-red

147.5

185.88

insol

1.6947

6.414

3 mm Hg

PHENYLMERCAPTAN
108-98-5

water-white liquid; prism-like crystals from petroleum ether

168

-14.8

110.17

insol

1.0766

3.8

@ 18 °C

<55

PROPANETHIOL
107-03-9

colourless, mobile liquid

67-68

-113.3

76.17

sl sol

0.8411 g/ml

@ 25 °C

-20

SODIUM DODECYLBENZENE­SULFONATE
25155-30-0

white to light yellow flakes, granules, or powder

>300

sol

1.0 for 60% slurry

THIOACETAMIDE
62-55-5

crystals from benzene; colourless leaflets; crystals from alc, plates from ether

116

75.1

v sol

THIOACETIC ACID
507-09-5

yellow liquid

93

<-17

76.1

sl sol

1.064

2.62

18-21

2,2'-THIODIETHANOL
111-48-8

164-166

-10

122.2

1.1819

THIOGLYCOLIC ACID
68-11-1

colourless liquid

@ 20 mm Hg

-16.5

92.1

misc

1.3253

@ 18 °C

 

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Chemical Name
CAS-Number

Physical

Chemical

UN Class or Division /  Subsidiary Risks

ANTU
86-88-4

The substance decomposes on heating producing toxic fumes including nitrogen oxides and sulphur oxides • Reacts with strong oxidants causing fire and explosion hazard

6.1

BENZENESULPHONYL CHLORIDE
98-09-9

8

n-BUTYLMERCAPTAN
109-79-5

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on burning or heating, producing highly toxic fumes (sulphur dioxide) • Reacts with acids, bases, alkali metals, and strong oxidants

3

tert-BUTYLMERCAPTAN
75-66-1

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on burning producing highly toxic gases including sulphur oxides • Reacts with strong acids, strong bases, alkali metals, strong reducing agents, strong oxidants

CETYLMERCAPTAN
2917-26-2

The substance decomposes on burning producing highly toxic gases including sulphur oxides • Reacts violently with strong oxidants, acids, reducing agents, alkali metals

CYCLOHEXYLMERCAPTAN
1569-69-3

The substance decomposes on burning producing highly toxic gases including sulphur dioxide • Reacts with strong oxidants, reducing agents, and alkali metals

3

DECYLMERCAPTAN
143-10-2

The substance decomposes on burning producing highly toxic gases including sulphur dioxide • Reacts with strong oxidants and strong bases

DIETHYLSULPHATE
64-67-5

The substance decomposes on heating producing flammable and toxic fumes • The substance is a strong oxidant and reacts with combustible and reducing materials • The substance is a strong reducing agent and reacts with oxidants • The solution in water is a strong acid, it reacts violently with bases and is corrosive

6.1

DIETHYLSULPHIDE
352-93-2

3

DIMETHYLSULPHATE
77-78-1

6.1/ 8

DIMETHYLSULPHIDE
75-18-3

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on heating and on burning producing toxic and corrosive fumes (hydrogen sulphide and sulphur oxides) • Reacts violently with strong oxidants causing fire and explosion hazard

3

DIMETHYLSULPHOXIDE
67-68-5

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on heating above 150 °C or on burning producing toxic fumes • Reacts violently with strong oxidants such as perchlorates

DODECYLMERCAPTAN
112-55-0

The substance decomposes on burning producing highly toxic gases including sulphur dioxide • Reacts violently with strong oxidants and alkali metals

ETHYLMERCAPTAN
75-08-1

The vapour is heavier than air and may travel along the ground; distant ignition possible

On combustion, forms carbon monoxide, sulphur oxides and hydrogen sulphide • The substance is a weak acid • Reacts with oxidants causing fire and explosion hazard • Reacts vigourously with strong acids and bases causing toxic hazard

3

LAURYL SODIUM SULPHATE
151-21-3

On combustion, forms toxic gases • Gives off toxic fumes in a fire

MERCAPTOACETIC ACID
68-11-1

8

2-MERCAPTOETHANOL
60-24-2

8

METHANESULPHONYL CHLORIDE
124-63-0

6.1/ 8

D,L-METHIONINE
59-51-8

The substance decomposes on heating producing sulphur oxides, nitrous oxides • Reacts with strong oxidants

METHYLMERCAPTAN
74-93-1

The gas is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on heating and on burning producing toxic sulphur oxides • Reacts violently with strong oxidants • Reacts with acids to form flammable and toxic gas (hydrogen sulphide)

2.3/ 2.1

1-PENTANETHIOL
110-66-7

3

PERCHLOROMETHYLMERCAPTAN
594-42-3

6.1

PHENYLMERCAPTAN
108-98-5

The substance decomposes on heating producing toxic fumes (sulphur oxides and carbon monoxide) • Reacts with acids to form toxic fumes (sulphur oxides)

6.1/ 3

PROPANETHIOL
107-03-9

3

SODIUM DODECYLBENZENESULPHONATE
25155-30-0

The substance decomposes on heating and on burning producing toxic and irritating fumes (sulphur oxides) • Reacts with acids or acid fumes producing toxic and irritating fumes (sulphur oxides)

SODIUM THIOCYANATE
540-72-7

The substance decomposes on heating and under influence of light producing toxic fumes of sulphur oxides, nitrogen oxides and cyanides • Reacts violently with acids, strong bases and strong oxidants

THIOACETAMIDE
62-55-5

The substance decomposes on burning producing toxic fumes

THIOACETIC ACID
507-09-5

The vapour is heavier than air and may travel along the ground; distant ignition possible

The substance decomposes on burning producing toxic and corrosive fumes (sulphur oxides) • The substance is a medium strong acid and is corrosive • Reacts violently with strong oxidants causing fire and explosion hazard • Reacts slowly with water forming acetic acid and hydrogen sulfide

THIOUREA
62-56-6

The substance decomposes on heating producing toxic fumes of nitrogen oxides and sulphur oxides • acts with sufphydryl-oxidizing agents and forms complexes and adducts with metallic salts and many organic compounds including proteins and certain hydrocarbons • Reacts violently with acrolein, strong acids and strong oxidants

THIRAM
137-26-8

Dust explosion possible if in powder or granular form, mixed with air

The substance decomposes on heating and on burning producing toxic fumes (nitrogen, sulphur oxides) • Reacts with strong oxidants, acids and oxidizable materials

6.1

For UN Class: 1.5 = very insensitive substances which have a mass explosion hazard; 2.1 = flammable gas; 2.3 = toxic gas; 3 = flammable liquid; 4.1 = flammable solid; 4.2 = substance liable to spontaneous combustion; 4.3 = substance which in contact with water emits flammable gases; 5.1 = oxidizing substance; 6.1 = toxic; 7 = radioactive; 8 = corrosive substance

 

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Page 5 of 122

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Contents

Construction References

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