Potassium chlorate, aqueous solution

Potassium chlorate is the inorganic compound with the molecular formula KClO3. In its pure form, it is a white solid. After sodium chlorate, it is the second most common chlorate in industrial use. It is a strong oxidizing agent and its most important application is in safety matches. Wikipedia

Substance Data

Source: TOXNET

CAS-Number

3811-04-9

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 140

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

Packing Group II
Packing Group III

(3) Hazard Class

(4) Identification number

UN 2427

(5) Packing Group

II

Comparison View of PG

(6) Labels

Oxidizers (5.1)

(7) Special Provisions (§172.102)

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.

A2	Single packagings are not permitted on aircraft. Browse special provision A2
IB2	Authorized IBCs: Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1). Additional Requirement: Only liquids with a vapor pressure less than or equal to 110 kPa at 50 [deg]C (1.1 bar at 122 [deg]F), or 130 kPa at 55 [deg]C (1.3 bar at 131 [deg]F) are authorized. Browse special provision IB2
T4	see 49 CFR §172.102
TP1	The maximum degree of filling must not exceed the degree of filling determined by the following: Where: t_r is the maximum mean bulk temperature during transport, and t_f is the temperature in degrees celsius of the liquid during filling. Browse special provision TP1

(8) Packing Authorizations (§173.***)

(8A) Exceptions	152	see 49 CFR §173.152
(8B) Non-bulk	202	see 49 CFR §173.202
(8C) Bulk	241	see 49 CFR §173.241

(9) Quantity Limits

(9A) Passenger aircraft/rail	1 L
(9B) Cargo aircraft only	5 L

(10) Vessel stowage

(10A) Location

B

Stowage category “B” means

(i) The material may be stowed “on deck” or “under deck” on a cargo vessel and on a passenger vessel carrying a number of passengers limited to not more than the larger of 25 passengers, or one passenger per each 3 m of overall vessel length; and
(ii) “On deck only” on passenger vessels in which the number of passengers specified in paragraph (k)(2)(i) of this section is exceeded.

Source: 49 CFR §172.101(k)

(10B) Other

56	Stow “separated from” ammonium compounds.
58	Stow “separated from” cyanides.
133	Stow “separated from” sulfur.

Source: 49 CFR §176.84

(3) Hazard Class

(4) Identification number

UN 2427

(5) Packing Group

III

Comparison View of PG

(6) Labels

Oxidizers (5.1)

(7) Special Provisions (§172.102)

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.

A2	Single packagings are not permitted on aircraft. Browse special provision A2
IB2	Authorized IBCs: Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1). Additional Requirement: Only liquids with a vapor pressure less than or equal to 110 kPa at 50 [deg]C (1.1 bar at 122 [deg]F), or 130 kPa at 55 [deg]C (1.3 bar at 131 [deg]F) are authorized. Browse special provision IB2
T4	see 49 CFR §172.102
TP1	The maximum degree of filling must not exceed the degree of filling determined by the following: Where: t_r is the maximum mean bulk temperature during transport, and t_f is the temperature in degrees celsius of the liquid during filling. Browse special provision TP1

(8) Packing Authorizations (§173.***)

(8A) Exceptions	152	see 49 CFR §173.152
(8B) Non-bulk	203	see 49 CFR §173.203
(8C) Bulk	241	see 49 CFR §173.241

(9) Quantity Limits

(9A) Passenger aircraft/rail	2.5 L
(9B) Cargo aircraft only	30 L

(10) Vessel stowage

(10A) Location

B

Stowage category “B” means

(i) The material may be stowed “on deck” or “under deck” on a cargo vessel and on a passenger vessel carrying a number of passengers limited to not more than the larger of 25 passengers, or one passenger per each 3 m of overall vessel length; and
(ii) “On deck only” on passenger vessels in which the number of passengers specified in paragraph (k)(2)(i) of this section is exceeded.

Source: 49 CFR §172.101(k)

(10B) Other

56	Stow “separated from” ammonium compounds.
58	Stow “separated from” cyanides.
69	Stow “separated from” hydrogen peroxide.
133	Stow “separated from” sulfur.

Source: 49 CFR §176.84

Comparison View of Different Packing Groups

More than one packing group is indicated for this entry. Criteria for assignment see 49 CFR §173 Subpart D. You can find specific details in the tabs above. Differences are highlighted.

	PG II	PG III
1
2	Potassium chlorate, aqueous solution	Potassium chlorate, aqueous solution
3	5.1	5.1
4	UN 2427	UN 2427
5	II	III
6	5.1	5.1
7	A2, IB2, T4, TP1	A2, IB2, T4, TP1
8A	152	152
8B	202	203
8C	241	241
9A	1 L	2.5 L
9B	5 L	30 L
10A	B	B
10B	56, 58, 133	56, 58, 69, 133

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

Hazard Class	8	7	6.1	5.2	5.1	4.3	4.2	4.1	3	2.3B	2.3A	2.2	2.1	1.6	1.5	1.4	1.3	1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8

	May not be loaded, transported, or stored together in the same transport vehicle or storage facility.
	Load, transport, storage together is not restricted.
	Load, transport, storage together is allowed under restrictions.

Substances with similar name

UN-Number	Name	Hazard Class
	Chlorate of potash, see Potassium chlorate
UN 1626	Mercuric potassium cyanide	6.1
UN 1643	Mercury potassium iodide	6.1
UN 2257	Potassium	4.3
UN 1677	Potassium arsenate	6.1
	Potassium bisulfite solution, see Bisulfites, aqueous solutions, n.o.s.
UN 1870	Potassium borohydride	4.3
UN 1484	Potassium bromate	5.1
UN 2427	Potassium chlorate, aqueous solution	5.1
UN 1679	Potassium cuprocyanide	6.1
UN 1929	Potassium dithionite or Potassium hydrosulfite	4.2
UN 1812	Potassium fluoride, solid	6.1
UN 3422	Potassium fluoride solution	6.1
UN 2628	Potassium fluoroacetate	6.1
UN 1811	Potassium hydrogendifluoride solid	8
UN 3421	Potassium hydrogendifluoride solution	8
	Potassium hydrosulfite, see Potassium dithionite
UN 1814	Potassium hydroxide, solution	8
UN 1487	Potassium nitrate and sodium nitrite mixtures	5.1
UN 1492	Potassium persulfate	5.1
UN 2012	Potassium phosphide	4.3
UN 1422	Potassium sodium alloys, liquid	4.3
UN 3404	Potassium sodium alloys, solid	4.3
UN 1382	Potassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization	4.2
UN 1847	Potassium sulfide, hydrated with not less than 30 percent water of crystallization	8